sljitNativeARM_T2_32.c

Go to the documentation of this file.

/*
 *    Stack-less Just-In-Time compiler
 *
 *    Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright notice, this list of
 *      conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright notice, this list
 *      of conditions and the following disclaimer in the documentation and/or other materials
 *      provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
{
#ifdef __SOFTFP__
    return "ARM-Thumb2" SLJIT_CPUINFO " ABI:softfp";
#else
    return "ARM-Thumb2" SLJIT_CPUINFO " ABI:hardfp";
#endif
}
 
/* Length of an instruction word. */
typedef sljit_u32 sljit_ins;
 
/* Last register + 1. */
#define TMP_REG1    (SLJIT_NUMBER_OF_REGISTERS + 2)
#define TMP_REG2    (SLJIT_NUMBER_OF_REGISTERS + 3)
#define TMP_PC      (SLJIT_NUMBER_OF_REGISTERS + 4)
 
#define TMP_FREG1   (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
#define TMP_FREG2   (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
 
/* See sljit_emit_enter and sljit_emit_op0 if you want to change them. */
static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = {
    0, 0, 1, 2, 3, 11, 10, 9, 8, 7, 6, 5, 4, 13, 12, 14, 15
};
 
static const sljit_u8 freg_map[((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2) << 1) + 1] = {
    0,
    0, 1, 2, 3, 4, 5, 15, 14, 13, 12, 11, 10, 9, 8,
    7, 6,
    0, 1, 2, 3, 4, 5, 15, 14, 13, 12, 11, 10, 9, 8,
    7, 6
};
 
static const sljit_u8 freg_ebit_map[((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2) << 1) + 1] = {
    0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1
};
 
#define COPY_BITS(src, from, to, bits) \
    ((from >= to ? ((sljit_ins)(src) >> (from - to)) : ((sljit_ins)(src) << (to - from))) & (((1 << bits) - 1) << to))
 
#define NEGATE(uimm) ((sljit_uw)-(sljit_sw)(uimm))
 
/* Thumb16 encodings. */
#define RD3(rd) ((sljit_ins)reg_map[rd])
#define RN3(rn) ((sljit_ins)reg_map[rn] << 3)
#define RM3(rm) ((sljit_ins)reg_map[rm] << 6)
#define RDN3(rdn) ((sljit_ins)reg_map[rdn] << 8)
#define IMM3(imm) ((sljit_ins)imm << 6)
#define IMM8(imm) ((sljit_ins)imm)
 
/* Thumb16 helpers. */
#define SET_REGS44(rd, rn) \
    (((sljit_ins)reg_map[rn] << 3) | ((sljit_ins)reg_map[rd] & 0x7) | (((sljit_ins)reg_map[rd] & 0x8) << 4))
#define IS_2_LO_REGS(reg1, reg2) \
    (reg_map[reg1] <= 7 && reg_map[reg2] <= 7)
#define IS_3_LO_REGS(reg1, reg2, reg3) \
    (reg_map[reg1] <= 7 && reg_map[reg2] <= 7 && reg_map[reg3] <= 7)
 
/* Thumb32 encodings. */
#define RM4(rm) ((sljit_ins)reg_map[rm])
#define RD4(rd) ((sljit_ins)reg_map[rd] << 8)
#define RT4(rt) ((sljit_ins)reg_map[rt] << 12)
#define RN4(rn) ((sljit_ins)reg_map[rn] << 16)
 
#define VM4(vm) (((sljit_ins)freg_map[vm]) | ((sljit_ins)freg_ebit_map[vm] << 5))
#define VD4(vd) (((sljit_ins)freg_map[vd] << 12) | ((sljit_ins)freg_ebit_map[vd] << 22))
#define VN4(vn) (((sljit_ins)freg_map[vn] << 16) | ((sljit_ins)freg_ebit_map[vn] << 7))
 
#define IMM5(imm) \
    (COPY_BITS(imm, 2, 12, 3) | (((sljit_ins)imm & 0x3) << 6))
#define IMM12(imm) \
    (COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | ((sljit_ins)imm & 0xff))
 
/* --------------------------------------------------------------------- */
/*  Instrucion forms                                                     */
/* --------------------------------------------------------------------- */
 
/* dot '.' changed to _
   I immediate form (possibly followed by number of immediate bits). */
#define ADCI        0xf1400000
#define ADCS        0x4140
#define ADC_W       0xeb400000
#define ADD     0x4400
#define ADDS        0x1800
#define ADDSI3      0x1c00
#define ADDSI8      0x3000
#define ADDWI       0xf2000000
#define ADD_SP      0x4485
#define ADD_SP_I    0xb000
#define ADD_W       0xeb000000
#define ADD_WI      0xf1000000
#define ANDI        0xf0000000
#define ANDS        0x4000
#define AND_W       0xea000000
#define ASRS        0x4100
#define ASRSI       0x1000
#define ASR_W       0xfa40f000
#define ASR_WI      0xea4f0020
#define BCC     0xd000
#define BICI        0xf0200000
#define BKPT        0xbe00
#define BLX     0x4780
#define BX      0x4700
#define CLZ     0xfab0f080
#define CMNI_W      0xf1100f00
#define CMP     0x4280
#define CMPI        0x2800
#define CMPI_W      0xf1b00f00
#define CMP_X       0x4500
#define CMP_W       0xebb00f00
#define EORI        0xf0800000
#define EORS        0x4040
#define EOR_W       0xea800000
#define IT      0xbf00
#define LDR     0xf8d00000
#define LDR_SP      0x9800
#define LDRD        0xe9500000
#define LDREX       0xe8500f00
#define LDREXB      0xe8d00f4f
#define LDREXH      0xe8d00f5f
#define LDRI        0xf8500800
#define LSLS        0x4080
#define LSLSI       0x0000
#define LSL_W       0xfa00f000
#define LSL_WI      0xea4f0000
#define LSRS        0x40c0
#define LSRSI       0x0800
#define LSR_W       0xfa20f000
#define LSR_WI      0xea4f0010
#define MLA     0xfb000000
#define MOV     0x4600
#define MOVS        0x0000
#define MOVSI       0x2000
#define MOVT        0xf2c00000
#define MOVW        0xf2400000
#define MOV_W       0xea4f0000
#define MOV_WI      0xf04f0000
#define MUL     0xfb00f000
#define MVNS        0x43c0
#define MVN_W       0xea6f0000
#define MVN_WI      0xf06f0000
#define NOP     0xbf00
#define ORNI        0xf0600000
#define ORRI        0xf0400000
#define ORRS        0x4300
#define ORR_W       0xea400000
#define POP     0xbc00
#define POP_W       0xe8bd0000
#define PUSH        0xb400
#define PUSH_W      0xe92d0000
#define REV     0xba00
#define REV_W       0xfa90f080
#define REV16       0xba40
#define REV16_W     0xfa90f090
#define RBIT        0xfa90f0a0
#define RORS        0x41c0
#define ROR_W       0xfa60f000
#define ROR_WI      0xea4f0030
#define RSB_WI      0xf1c00000
#define RSBSI       0x4240
#define SBCI        0xf1600000
#define SBCS        0x4180
#define SBC_W       0xeb600000
#define SDIV        0xfb90f0f0
#define SMULL       0xfb800000
#define STR_SP      0x9000
#define STRD        0xe9400000
#define STREX       0xe8400000
#define STREXB      0xe8c00f40
#define STREXH      0xe8c00f50
#define SUBS        0x1a00
#define SUBSI3      0x1e00
#define SUBSI8      0x3800
#define SUB_W       0xeba00000
#define SUBWI       0xf2a00000
#define SUB_SP_I    0xb080
#define SUB_WI      0xf1a00000
#define SXTB        0xb240
#define SXTB_W      0xfa4ff080
#define SXTH        0xb200
#define SXTH_W      0xfa0ff080
#define TST     0x4200
#define TSTI        0xf0000f00
#define TST_W       0xea000f00
#define UDIV        0xfbb0f0f0
#define UMULL       0xfba00000
#define UXTB        0xb2c0
#define UXTB_W      0xfa5ff080
#define UXTH        0xb280
#define UXTH_W      0xfa1ff080
#define VABS_F32    0xeeb00ac0
#define VADD_F32    0xee300a00
#define VAND        0xef000110
#define VCMP_F32    0xeeb40a40
#define VCVT_F32_S32    0xeeb80ac0
#define VCVT_F32_U32    0xeeb80a40
#define VCVT_F64_F32    0xeeb70ac0
#define VCVT_S32_F32    0xeebd0ac0
#define VDIV_F32    0xee800a00
#define VDUP        0xee800b10
#define VDUP_s      0xffb00c00
#define VEOR        0xff000110
#define VLD1        0xf9200000
#define VLD1_r      0xf9a00c00
#define VLD1_s      0xf9a00000
#define VLDR_F32    0xed100a00
#define VMOV_F32    0xeeb00a40
#define VMOV        0xee000a10
#define VMOV2       0xec400a10
#define VMOV_i      0xef800010
#define VMOV_s      0xee000b10
#define VMOVN       0xffb20200
#define VMRS        0xeef1fa10
#define VMUL_F32    0xee200a00
#define VNEG_F32    0xeeb10a40
#define VORR        0xef200110
#define VPOP        0xecbd0b00
#define VPUSH       0xed2d0b00
#define VSHLL       0xef800a10
#define VSHR        0xef800010
#define VSRA        0xef800110
#define VST1        0xf9000000
#define VST1_s      0xf9800000
#define VSTR_F32    0xed000a00
#define VSUB_F32    0xee300a40
 
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
 
static sljit_s32 function_check_is_freg(struct sljit_compiler *compiler, sljit_s32 fr, sljit_s32 is_32)
{
    if (compiler->scratches == -1)
        return 0;
 
    if (is_32 && fr >= SLJIT_F64_SECOND(SLJIT_FR0))
        fr -= SLJIT_F64_SECOND(0);
 
    return (fr >= SLJIT_FR0 && fr < (SLJIT_FR0 + compiler->fscratches))
        || (fr > (SLJIT_FS0 - compiler->fsaveds) && fr <= SLJIT_FS0)
        || (fr >= SLJIT_TMP_FREGISTER_BASE && fr < (SLJIT_TMP_FREGISTER_BASE + SLJIT_NUMBER_OF_TEMPORARY_FLOAT_REGISTERS));
}
 
#endif /* SLJIT_ARGUMENT_CHECKS */
 
static sljit_s32 push_inst16(struct sljit_compiler *compiler, sljit_ins inst)
{
    sljit_u16 *ptr;
    SLJIT_ASSERT(!(inst & 0xffff0000));
 
    ptr = (sljit_u16*)ensure_buf(compiler, sizeof(sljit_u16));
    FAIL_IF(!ptr);
    *ptr = (sljit_u16)(inst);
    compiler->size++;
    return SLJIT_SUCCESS;
}
 
static sljit_s32 push_inst32(struct sljit_compiler *compiler, sljit_ins inst)
{
    sljit_u16 *ptr = (sljit_u16*)ensure_buf(compiler, sizeof(sljit_ins));
    FAIL_IF(!ptr);
    *ptr++ = (sljit_u16)(inst >> 16);
    *ptr = (sljit_u16)(inst);
    compiler->size += 2;
    return SLJIT_SUCCESS;
}
 
static sljit_s32 emit_imm32_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_uw imm)
{
    FAIL_IF(push_inst32(compiler, MOVW | RD4(dst)
        | COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
    return push_inst32(compiler, MOVT | RD4(dst)
        | COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
}
 
/* Dst must be in bits[11-8] */
static void set_imm32_const(sljit_u16 *inst, sljit_ins dst, sljit_uw new_imm)
{
    inst[0] = (sljit_u16)((MOVW >> 16) | COPY_BITS(new_imm, 12, 0, 4) | COPY_BITS(new_imm, 11, 10, 1));
    inst[1] = (sljit_u16)(dst | COPY_BITS(new_imm, 8, 12, 3) | (new_imm & 0xff));
    inst[2] = (sljit_u16)((MOVT >> 16) | COPY_BITS(new_imm, 12 + 16, 0, 4) | COPY_BITS(new_imm, 11 + 16, 10, 1));
    inst[3] = (sljit_u16)(dst | COPY_BITS(new_imm, 8 + 16, 12, 3) | ((new_imm & 0xff0000) >> 16));
}
 
static SLJIT_INLINE void modify_imm32_const(sljit_u16 *inst, sljit_uw new_imm)
{
    sljit_ins dst = inst[1] & 0x0f00;
    SLJIT_ASSERT(((inst[0] & 0xfbf0) == (MOVW >> 16)) && ((inst[2] & 0xfbf0) == (MOVT >> 16)) && dst == (inst[3] & 0x0f00));
    set_imm32_const(inst, dst, new_imm);
}
 
static SLJIT_INLINE sljit_u16* detect_jump_type(struct sljit_jump *jump, sljit_u16 *code_ptr, sljit_u16 *code, sljit_sw executable_offset)
{
    sljit_sw diff;
 
    if (jump->flags & SLJIT_REWRITABLE_JUMP)
        goto exit;
 
    if (jump->flags & JUMP_ADDR) {
        /* Branch to ARM code is not optimized yet. */
        if (!(jump->u.target & 0x1))
            goto exit;
        diff = (sljit_sw)jump->u.target - (sljit_sw)(code_ptr + 2) - executable_offset;
    } else {
        SLJIT_ASSERT(jump->u.label != NULL);
        diff = (sljit_sw)(code + jump->u.label->size) - (sljit_sw)(code_ptr + 2);
    }
 
    if (jump->flags & IS_COND) {
        SLJIT_ASSERT(!(jump->flags & IS_BL));
        /* Size of the prefix IT instruction. */
        diff += SSIZE_OF(u16);
        if (diff <= 0xff && diff >= -0x100) {
            jump->flags |= PATCH_TYPE1;
            jump->addr = (sljit_uw)(code_ptr - 1);
            return code_ptr - 1;
        }
        if (diff <= 0xfffff && diff >= -0x100000) {
            jump->flags |= PATCH_TYPE2;
            jump->addr = (sljit_uw)(code_ptr - 1);
            return code_ptr;
        }
        diff -= SSIZE_OF(u16);
    } else if (jump->flags & IS_BL) {
        /* Branch and link. */
        if (diff <= 0xffffff && diff >= -0x1000000) {
            jump->flags |= PATCH_TYPE5;
            return code_ptr + 1;
        }
        goto exit;
    } else if (diff <= 0x7ff && diff >= -0x800) {
        jump->flags |= PATCH_TYPE3;
        return code_ptr;
    }
 
    if (diff <= 0xffffff && diff >= -0x1000000) {
        jump->flags |= PATCH_TYPE4;
        return code_ptr + 1;
    }
 
exit:
    code_ptr[4] = code_ptr[0];
 
    if (jump->flags & IS_COND) {
        code_ptr[3] = code_ptr[-1];
        jump->addr = (sljit_uw)(code_ptr - 1);
    }
 
    return code_ptr + 4;
}
 
static SLJIT_INLINE sljit_sw mov_addr_get_length(struct sljit_jump *jump, sljit_u16 *code_ptr, sljit_u16 *code, sljit_sw executable_offset)
{
    sljit_uw addr;
    sljit_sw diff;
    SLJIT_UNUSED_ARG(executable_offset);
 
    if (jump->flags & JUMP_ADDR)
        addr = jump->u.target;
    else
        addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code + jump->u.label->size, executable_offset);
 
    /* The pc+4 offset is represented by the 2 * SSIZE_OF(sljit_u16) below. */
    diff = (sljit_sw)addr - (sljit_sw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
 
    /* Note: ADR with imm8 does not set the last bit (Thumb2 flag). */
 
    if (diff <= 0xffd + 2 * SSIZE_OF(u16) && diff >= -0xfff + 2 * SSIZE_OF(u16)) {
        jump->flags |= PATCH_TYPE6;
        return 1;
    }
 
    return 3;
}
 
static SLJIT_INLINE void generate_jump_or_mov_addr(struct sljit_jump *jump, sljit_sw executable_offset)
{
    sljit_s32 type = (jump->flags >> 4) & 0xf;
    sljit_u16 *jump_inst = (sljit_u16*)jump->addr;
    sljit_sw diff;
    sljit_ins ins;
 
    diff = (sljit_sw)((jump->flags & JUMP_ADDR) ? jump->u.target : jump->u.label->u.addr);
 
    if (SLJIT_UNLIKELY(type == 0)) {
        ins = (jump->flags & JUMP_MOV_ADDR) ? *jump_inst : RDN3(TMP_REG1);
        set_imm32_const((sljit_u16*)jump->addr, ins, (sljit_uw)diff);
        return;
    }
 
    if (SLJIT_UNLIKELY(type == 6)) {
        SLJIT_ASSERT(jump->flags & JUMP_MOV_ADDR);
        diff -= (sljit_sw)SLJIT_ADD_EXEC_OFFSET(jump_inst + 2, executable_offset) & ~(sljit_sw)0x3;
 
        SLJIT_ASSERT(diff <= 0xfff && diff >= -0xfff);
 
        ins = ADDWI >> 16;
        if (diff <= 0) {
            diff = -diff;
            ins = SUBWI >> 16;
        }
 
        jump_inst[1] = (sljit_u16)(jump_inst[0] | COPY_BITS(diff, 8, 12, 3) | (diff & 0xff));
        jump_inst[0] = (sljit_u16)(ins | 0xf | COPY_BITS(diff, 11, 10, 1));
        return;
    }
 
    SLJIT_ASSERT((diff & 0x1) != 0 && !(jump->flags & JUMP_MOV_ADDR));
    diff = (diff - (sljit_sw)(jump->addr + sizeof(sljit_u32)) - executable_offset) >> 1;
 
    switch (type) {
    case 1:
        /* Encoding T1 of 'B' instruction */
        SLJIT_ASSERT(diff <= 0x7f && diff >= -0x80 && (jump->flags & IS_COND));
        jump_inst[0] = (sljit_u16)(0xd000 | (jump->flags & 0xf00) | ((sljit_ins)diff & 0xff));
        return;
    case 2:
        /* Encoding T3 of 'B' instruction */
        SLJIT_ASSERT(diff <= 0x7ffff && diff >= -0x80000 && (jump->flags & IS_COND));
        jump_inst[0] = (sljit_u16)(0xf000 | COPY_BITS(jump->flags, 8, 6, 4) | COPY_BITS(diff, 11, 0, 6) | COPY_BITS(diff, 19, 10, 1));
        jump_inst[1] = (sljit_u16)(0x8000 | COPY_BITS(diff, 17, 13, 1) | COPY_BITS(diff, 18, 11, 1) | ((sljit_ins)diff & 0x7ff));
        return;
    case 3:
        /* Encoding T2 of 'B' instruction */
        SLJIT_ASSERT(diff <= 0x3ff && diff >= -0x400 && !(jump->flags & IS_COND));
        jump_inst[0] = (sljit_u16)(0xe000 | (diff & 0x7ff));
        return;
    }
 
    SLJIT_ASSERT(diff <= 0x7fffff && diff >= -0x800000);
 
    /* Really complex instruction form for branches. Negate with sign bit. */
    diff ^= ((diff >> 2) & 0x600000) ^ 0x600000;
 
    jump_inst[0] = (sljit_u16)(0xf000 | COPY_BITS(diff, 11, 0, 10) | COPY_BITS(diff, 23, 10, 1));
    jump_inst[1] = (sljit_u16)((diff & 0x7ff) | COPY_BITS(diff, 22, 13, 1) | COPY_BITS(diff, 21, 11, 1));
 
    SLJIT_ASSERT(type == 4 || type == 5);
 
    /* The others have a common form. */
    if (type == 4) /* Encoding T4 of 'B' instruction */
        jump_inst[1] |= 0x9000;
    else /* Encoding T1 of 'BL' instruction */
        jump_inst[1] |= 0xd000;
}
 
static void reduce_code_size(struct sljit_compiler *compiler)
{
    struct sljit_label *label;
    struct sljit_jump *jump;
    struct sljit_const *const_;
    SLJIT_NEXT_DEFINE_TYPES;
    sljit_uw total_size;
    sljit_uw size_reduce = 0;
    sljit_sw diff;
 
    label = compiler->labels;
    jump = compiler->jumps;
    const_ = compiler->consts;
    SLJIT_NEXT_INIT_TYPES();
 
    while (1) {
        SLJIT_GET_NEXT_MIN();
 
        if (next_min_addr == SLJIT_MAX_ADDRESS)
            break;
 
        if (next_min_addr == next_label_size) {
            label->size -= size_reduce;
 
            label = label->next;
            next_label_size = SLJIT_GET_NEXT_SIZE(label);
        }
 
        if (next_min_addr == next_const_addr) {
            const_->addr -= size_reduce;
            const_ = const_->next;
            next_const_addr = SLJIT_GET_NEXT_ADDRESS(const_);
            continue;
        }
 
        if (next_min_addr != next_jump_addr)
            continue;
 
        jump->addr -= size_reduce;
        if (!(jump->flags & JUMP_MOV_ADDR)) {
            total_size = JUMP_MAX_SIZE;
 
            if (!(jump->flags & (SLJIT_REWRITABLE_JUMP | JUMP_ADDR))) {
                /* Unit size: instruction. */
                diff = (sljit_sw)jump->u.label->size - (sljit_sw)jump->addr - 2;
 
                if (jump->flags & IS_COND) {
                    diff++;
 
                    if (diff <= (0xff / SSIZE_OF(u16)) && diff >= (-0x100 / SSIZE_OF(u16)))
                        total_size = 0;
                    else if (diff <= (0xfffff / SSIZE_OF(u16)) && diff >= (-0x100000 / SSIZE_OF(u16)))
                        total_size = 1;
                    diff--;
                } else if (!(jump->flags & IS_BL) && diff <= (0x7ff / SSIZE_OF(u16)) && diff >= (-0x800 / SSIZE_OF(u16)))
                    total_size = 1;
 
                if (total_size == JUMP_MAX_SIZE && diff <= (0xffffff / SSIZE_OF(u16)) && diff >= (-0x1000000 / SSIZE_OF(u16)))
                    total_size = 2;
            }
 
            size_reduce += JUMP_MAX_SIZE - total_size;
        } else {
            /* Real size minus 1. Unit size: instruction. */
            total_size = 3;
 
            if (!(jump->flags & JUMP_ADDR)) {
                diff = (sljit_sw)jump->u.label->size - (sljit_sw)jump->addr;
 
                if (diff <= (0xffd / SSIZE_OF(u16)) && diff >= (-0xfff / SSIZE_OF(u16)))
                    total_size = 1;
            }
 
            size_reduce += 3 - total_size;
        }
 
        jump->flags |= total_size << JUMP_SIZE_SHIFT;
        jump = jump->next;
        next_jump_addr = SLJIT_GET_NEXT_ADDRESS(jump);
    }
 
    compiler->size -= size_reduce;
}
 
SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler, sljit_s32 options, void *exec_allocator_data)
{
    struct sljit_memory_fragment *buf;
    sljit_u16 *code;
    sljit_u16 *code_ptr;
    sljit_u16 *buf_ptr;
    sljit_u16 *buf_end;
    sljit_uw half_count;
    SLJIT_NEXT_DEFINE_TYPES;
    sljit_sw addr;
    sljit_sw executable_offset;
 
    struct sljit_label *label;
    struct sljit_jump *jump;
    struct sljit_const *const_;
 
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_generate_code(compiler));
 
    reduce_code_size(compiler);
 
    code = (sljit_u16*)allocate_executable_memory(compiler->size * sizeof(sljit_u16), options, exec_allocator_data, &executable_offset);
    PTR_FAIL_WITH_EXEC_IF(code);
 
    reverse_buf(compiler);
    buf = compiler->buf;
 
    code_ptr = code;
    half_count = 0;
    label = compiler->labels;
    jump = compiler->jumps;
    const_ = compiler->consts;
    SLJIT_NEXT_INIT_TYPES();
    SLJIT_GET_NEXT_MIN();
 
    do {
        buf_ptr = (sljit_u16*)buf->memory;
        buf_end = buf_ptr + (buf->used_size >> 1);
        do {
            *code_ptr = *buf_ptr++;
            if (next_min_addr == half_count) {
                SLJIT_ASSERT(!label || label->size >= half_count);
                SLJIT_ASSERT(!jump || jump->addr >= half_count);
                SLJIT_ASSERT(!const_ || const_->addr >= half_count);
 
                /* These structures are ordered by their address. */
                if (next_min_addr == next_label_size) {
                    label->u.addr = ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset)) | 0x1;
                    label->size = (sljit_uw)(code_ptr - code);
                    label = label->next;
                    next_label_size = SLJIT_GET_NEXT_SIZE(label);
                }
 
                if (next_min_addr == next_jump_addr) {
                    if (!(jump->flags & JUMP_MOV_ADDR)) {
                        half_count = half_count - 1 + (jump->flags >> JUMP_SIZE_SHIFT);
                        jump->addr = (sljit_uw)code_ptr;
                        code_ptr = detect_jump_type(jump, code_ptr, code, executable_offset);
                        SLJIT_ASSERT((sljit_uw)code_ptr - jump->addr <
                            ((jump->flags >> JUMP_SIZE_SHIFT) + ((jump->flags & 0xf0) <= PATCH_TYPE2)) * sizeof(sljit_u16));
                    } else {
                        half_count += jump->flags >> JUMP_SIZE_SHIFT;
                        addr = (sljit_sw)code_ptr;
                        code_ptr += mov_addr_get_length(jump, code_ptr, code, executable_offset);
                        jump->addr = (sljit_uw)addr;
                    }
 
                    jump = jump->next;
                    next_jump_addr = SLJIT_GET_NEXT_ADDRESS(jump);
                } else if (next_min_addr == next_const_addr) {
                    const_->addr = (sljit_uw)code_ptr;
                    const_ = const_->next;
                    next_const_addr = SLJIT_GET_NEXT_ADDRESS(const_);
                }
 
                SLJIT_GET_NEXT_MIN();
            }
            code_ptr++;
            half_count++;
        } while (buf_ptr < buf_end);
 
        buf = buf->next;
    } while (buf);
 
    if (label && label->size == half_count) {
        label->u.addr = ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset)) | 0x1;
        label->size = (sljit_uw)(code_ptr - code);
        label = label->next;
    }
 
    SLJIT_ASSERT(!label);
    SLJIT_ASSERT(!jump);
    SLJIT_ASSERT(!const_);
    SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size);
 
    jump = compiler->jumps;
    while (jump) {
        generate_jump_or_mov_addr(jump, executable_offset);
        jump = jump->next;
    }
 
    compiler->error = SLJIT_ERR_COMPILED;
    compiler->executable_offset = executable_offset;
    compiler->executable_size = (sljit_uw)(code_ptr - code) * sizeof(sljit_u16);
 
    code = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
    code_ptr = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
 
    SLJIT_CACHE_FLUSH(code, code_ptr);
    SLJIT_UPDATE_WX_FLAGS(code, code_ptr, 1);
 
    /* Set thumb mode flag. */
    return (void*)((sljit_uw)code | 0x1);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
{
    switch (feature_type) {
    case SLJIT_HAS_FPU:
    case SLJIT_HAS_F64_AS_F32_PAIR:
    case SLJIT_HAS_SIMD:
#ifdef SLJIT_IS_FPU_AVAILABLE
        return (SLJIT_IS_FPU_AVAILABLE) != 0;
#else
        /* Available by default. */
        return 1;
#endif
 
    case SLJIT_SIMD_REGS_ARE_PAIRS:
    case SLJIT_HAS_CLZ:
    case SLJIT_HAS_CTZ:
    case SLJIT_HAS_REV:
    case SLJIT_HAS_ROT:
    case SLJIT_HAS_CMOV:
    case SLJIT_HAS_PREFETCH:
    case SLJIT_HAS_COPY_F32:
    case SLJIT_HAS_COPY_F64:
    case SLJIT_HAS_ATOMIC:
        return 1;
 
    default:
        return 0;
    }
}
 
/* --------------------------------------------------------------------- */
/*  Core code generator functions.                                       */
/* --------------------------------------------------------------------- */
 
#define INVALID_IMM 0x80000000
static sljit_uw get_imm(sljit_uw imm)
{
    /* Thumb immediate form. */
    sljit_s32 counter;
 
    if (imm <= 0xff)
        return imm;
 
    if ((imm & 0xffff) == (imm >> 16)) {
        /* Some special cases. */
        if (!(imm & 0xff00))
            return (1 << 12) | (imm & 0xff);
        if (!(imm & 0xff))
            return (2 << 12) | ((imm >> 8) & 0xff);
        if ((imm & 0xff00) == ((imm & 0xff) << 8))
            return (3 << 12) | (imm & 0xff);
    }
 
    /* Assembly optimization: count leading zeroes? */
    counter = 8;
    if (!(imm & 0xffff0000)) {
        counter += 16;
        imm <<= 16;
    }
    if (!(imm & 0xff000000)) {
        counter += 8;
        imm <<= 8;
    }
    if (!(imm & 0xf0000000)) {
        counter += 4;
        imm <<= 4;
    }
    if (!(imm & 0xc0000000)) {
        counter += 2;
        imm <<= 2;
    }
    if (!(imm & 0x80000000)) {
        counter += 1;
        imm <<= 1;
    }
    /* Since imm >= 128, this must be true. */
    SLJIT_ASSERT(counter <= 31);
 
    if (imm & 0x00ffffff)
        return INVALID_IMM; /* Cannot be encoded. */
 
    return ((imm >> 24) & 0x7f) | COPY_BITS(counter, 4, 26, 1) | COPY_BITS(counter, 1, 12, 3) | COPY_BITS(counter, 0, 7, 1);
}
 
static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 dst, sljit_uw imm)
{
    sljit_uw tmp;
 
    /* MOVS cannot be used since it destroy flags. */
 
    if (imm >= 0x10000) {
        tmp = get_imm(imm);
        if (tmp != INVALID_IMM)
            return push_inst32(compiler, MOV_WI | RD4(dst) | tmp);
        tmp = get_imm(~imm);
        if (tmp != INVALID_IMM)
            return push_inst32(compiler, MVN_WI | RD4(dst) | tmp);
    }
 
    /* set low 16 bits, set hi 16 bits to 0. */
    FAIL_IF(push_inst32(compiler, MOVW | RD4(dst)
        | COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
 
    /* set hi 16 bit if needed. */
    if (imm >= 0x10000)
        return push_inst32(compiler, MOVT | RD4(dst)
            | COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
    return SLJIT_SUCCESS;
}
 
#define ARG1_IMM    0x0010000
#define ARG2_IMM    0x0020000
/* SET_FLAGS must be 0x100000 as it is also the value of S bit (can be used for optimization). */
#define SET_FLAGS   0x0100000
#define UNUSED_RETURN   0x0200000
#define REGISTER_OP 0x0400000
 
static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 dst, sljit_uw arg1, sljit_uw arg2)
{
    /* dst must be register
       arg1 must be register, imm
       arg2 must be register, imm */
    sljit_s32 reg;
    sljit_uw imm, imm2;
 
    if (SLJIT_UNLIKELY((flags & (ARG1_IMM | ARG2_IMM)) == (ARG1_IMM | ARG2_IMM))) {
        /* Both are immediates, no temporaries are used. */
        flags &= ~ARG1_IMM;
        FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
        arg1 = TMP_REG1;
    }
 
    if (flags & (ARG1_IMM | ARG2_IMM)) {
        reg = (sljit_s32)((flags & ARG2_IMM) ? arg1 : arg2);
        imm = (flags & ARG2_IMM) ? arg2 : arg1;
 
        switch (flags & 0xffff) {
        case SLJIT_CLZ:
        case SLJIT_CTZ:
        case SLJIT_REV:
        case SLJIT_REV_U16:
        case SLJIT_REV_S16:
        case SLJIT_REV_U32:
        case SLJIT_REV_S32:
        case SLJIT_MUL:
        case SLJIT_MULADD:
            /* No form with immediate operand. */
            break;
        case SLJIT_MOV:
            SLJIT_ASSERT(!(flags & SET_FLAGS) && (flags & ARG2_IMM) && arg1 == TMP_REG2);
            return load_immediate(compiler, dst, imm);
        case SLJIT_ADD:
            compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
            imm2 = NEGATE(imm);
            if (IS_2_LO_REGS(reg, dst)) {
                if (imm <= 0x7)
                    return push_inst16(compiler, ADDSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
                if (imm2 <= 0x7)
                    return push_inst16(compiler, SUBSI3 | IMM3(imm2) | RD3(dst) | RN3(reg));
                if (reg == dst) {
                    if (imm <= 0xff)
                        return push_inst16(compiler, ADDSI8 | IMM8(imm) | RDN3(dst));
                    if (imm2 <= 0xff)
                        return push_inst16(compiler, SUBSI8 | IMM8(imm2) | RDN3(dst));
                }
            }
            if (!(flags & SET_FLAGS)) {
                if (imm <= 0xfff)
                    return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(imm));
                if (imm2 <= 0xfff)
                    return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(imm2));
            }
            imm2 = get_imm(imm);
            if (imm2 != INVALID_IMM)
                return push_inst32(compiler, ADD_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm2);
            imm = get_imm(NEGATE(imm));
            if (imm != INVALID_IMM)
                return push_inst32(compiler, SUB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
            break;
        case SLJIT_ADDC:
            compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
            imm2 = get_imm(imm);
            if (imm2 != INVALID_IMM)
                return push_inst32(compiler, ADCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm2);
            if (flags & ARG2_IMM) {
                imm = get_imm(~imm);
                if (imm != INVALID_IMM)
                    return push_inst32(compiler, SBCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
            }
            break;
        case SLJIT_SUB:
            compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
            if (flags & ARG1_IMM) {
                if (imm == 0 && IS_2_LO_REGS(reg, dst))
                    return push_inst16(compiler, RSBSI | RD3(dst) | RN3(reg));
                imm = get_imm(imm);
                if (imm != INVALID_IMM)
                    return push_inst32(compiler, RSB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
                break;
            }
            if (flags & UNUSED_RETURN) {
                if (imm <= 0xff && reg_map[reg] <= 7)
                    return push_inst16(compiler, CMPI | IMM8(imm) | RDN3(reg));
                imm2 = get_imm(imm);
                if (imm2 != INVALID_IMM)
                    return push_inst32(compiler, CMPI_W | RN4(reg) | imm2);
                imm = get_imm(NEGATE(imm));
                if (imm != INVALID_IMM)
                    return push_inst32(compiler, CMNI_W | RN4(reg) | imm);
                break;
            }
            imm2 = NEGATE(imm);
            if (IS_2_LO_REGS(reg, dst)) {
                if (imm <= 0x7)
                    return push_inst16(compiler, SUBSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
                if (imm2 <= 0x7)
                    return push_inst16(compiler, ADDSI3 | IMM3(imm2) | RD3(dst) | RN3(reg));
                if (reg == dst) {
                    if (imm <= 0xff)
                        return push_inst16(compiler, SUBSI8 | IMM8(imm) | RDN3(dst));
                    if (imm2 <= 0xff)
                        return push_inst16(compiler, ADDSI8 | IMM8(imm2) | RDN3(dst));
                }
            }
            if (!(flags & SET_FLAGS)) {
                if (imm <= 0xfff)
                    return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(imm));
                if (imm2 <= 0xfff)
                    return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(imm2));
            }
            imm2 = get_imm(imm);
            if (imm2 != INVALID_IMM)
                return push_inst32(compiler, SUB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm2);
            imm = get_imm(NEGATE(imm));
            if (imm != INVALID_IMM)
                return push_inst32(compiler, ADD_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
            break;
        case SLJIT_SUBC:
            compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
            if (flags & ARG1_IMM)
                break;
            imm2 = get_imm(imm);
            if (imm2 != INVALID_IMM)
                return push_inst32(compiler, SBCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm2);
            imm = get_imm(~imm);
            if (imm != INVALID_IMM)
                return push_inst32(compiler, ADCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
            break;
        case SLJIT_AND:
            imm2 = get_imm(imm);
            if (imm2 != INVALID_IMM)
                return push_inst32(compiler, ((flags & UNUSED_RETURN) ? TSTI : ANDI) | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm2);
            imm = get_imm(~imm);
            if (imm != INVALID_IMM)
                return push_inst32(compiler, BICI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
            break;
        case SLJIT_OR:
            imm2 = get_imm(imm);
            if (imm2 != INVALID_IMM)
                return push_inst32(compiler, ORRI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm2);
            imm = get_imm(~imm);
            if (imm != INVALID_IMM)
                return push_inst32(compiler, ORNI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
            break;
        case SLJIT_XOR:
            if (imm == (sljit_uw)-1) {
                if (IS_2_LO_REGS(dst, reg))
                    return push_inst16(compiler, MVNS | RD3(dst) | RN3(reg));
                return push_inst32(compiler, MVN_W | (flags & SET_FLAGS) | RD4(dst) | RM4(reg));
            }
            imm = get_imm(imm);
            if (imm != INVALID_IMM)
                return push_inst32(compiler, EORI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
            break;
        case SLJIT_SHL:
        case SLJIT_MSHL:
        case SLJIT_LSHR:
        case SLJIT_MLSHR:
        case SLJIT_ASHR:
        case SLJIT_MASHR:
        case SLJIT_ROTL:
        case SLJIT_ROTR:
            if (flags & ARG1_IMM)
                break;
            imm &= 0x1f;
 
            if (imm == 0) {
                if (!(flags & SET_FLAGS))
                    return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
                if (IS_2_LO_REGS(dst, reg))
                    return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
                return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
            }
 
            switch (flags & 0xffff) {
            case SLJIT_SHL:
            case SLJIT_MSHL:
                if (IS_2_LO_REGS(dst, reg))
                    return push_inst16(compiler, LSLSI | RD3(dst) | RN3(reg) | (imm << 6));
                return push_inst32(compiler, LSL_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
            case SLJIT_LSHR:
            case SLJIT_MLSHR:
                if (IS_2_LO_REGS(dst, reg))
                    return push_inst16(compiler, LSRSI | RD3(dst) | RN3(reg) | (imm << 6));
                return push_inst32(compiler, LSR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
            case SLJIT_ASHR:
            case SLJIT_MASHR:
                if (IS_2_LO_REGS(dst, reg))
                    return push_inst16(compiler, ASRSI | RD3(dst) | RN3(reg) | (imm << 6));
                return push_inst32(compiler, ASR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
            case SLJIT_ROTL:
                imm = (imm ^ 0x1f) + 1;
                /* fallthrough */
            default: /* SLJIT_ROTR */
                return push_inst32(compiler, ROR_WI | RD4(dst) | RM4(reg) | IMM5(imm));
            }
        default:
            SLJIT_UNREACHABLE();
            break;
        }
 
        if (flags & ARG2_IMM) {
            imm = arg2;
            arg2 = (arg1 == TMP_REG1) ? TMP_REG2 : TMP_REG1;
            FAIL_IF(load_immediate(compiler, (sljit_s32)arg2, imm));
        } else {
            imm = arg1;
            arg1 = (arg2 == TMP_REG1) ? TMP_REG2 : TMP_REG1;
            FAIL_IF(load_immediate(compiler, (sljit_s32)arg1, imm));
        }
 
        SLJIT_ASSERT(arg1 != arg2);
    }
 
    /* Both arguments are registers. */
    switch (flags & 0xffff) {
    case SLJIT_MOV:
    case SLJIT_MOV_U32:
    case SLJIT_MOV_S32:
    case SLJIT_MOV32:
    case SLJIT_MOV_P:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
        if (dst == (sljit_s32)arg2)
            return SLJIT_SUCCESS;
        return push_inst16(compiler, MOV | SET_REGS44(dst, arg2));
    case SLJIT_MOV_U8:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
        if (IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, UXTB | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, UXTB_W | RD4(dst) | RM4(arg2));
    case SLJIT_MOV_S8:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
        if (IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, SXTB | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, SXTB_W | RD4(dst) | RM4(arg2));
    case SLJIT_MOV_U16:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
        if (IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, UXTH | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, UXTH_W | RD4(dst) | RM4(arg2));
    case SLJIT_MOV_S16:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
        if (IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, SXTH | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, SXTH_W | RD4(dst) | RM4(arg2));
    case SLJIT_CLZ:
        SLJIT_ASSERT(arg1 == TMP_REG2);
        return push_inst32(compiler, CLZ | RN4(arg2) | RD4(dst) | RM4(arg2));
    case SLJIT_CTZ:
        SLJIT_ASSERT(arg1 == TMP_REG2);
        FAIL_IF(push_inst32(compiler, RBIT | RN4(arg2) | RD4(dst) | RM4(arg2)));
        return push_inst32(compiler, CLZ | RN4(dst) | RD4(dst) | RM4(dst));
    case SLJIT_REV:
    case SLJIT_REV_U32:
    case SLJIT_REV_S32:
        SLJIT_ASSERT(arg1 == TMP_REG2);
        if (IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, REV | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, REV_W | RN4(arg2) | RD4(dst) | RM4(arg2));
    case SLJIT_REV_U16:
    case SLJIT_REV_S16:
        SLJIT_ASSERT(arg1 == TMP_REG2);
 
        if (IS_2_LO_REGS(dst, arg2))
            FAIL_IF(push_inst16(compiler, REV16 | RD3(dst) | RN3(arg2)));
        else
            FAIL_IF(push_inst32(compiler, REV16_W | RN4(arg2) | RD4(dst) | RM4(arg2)));
 
        if (!(flags & REGISTER_OP))
            return SLJIT_SUCCESS;
 
        flags &= 0xffff;
        if (reg_map[dst] <= 7)
            return push_inst16(compiler, (flags == SLJIT_REV_U16 ? UXTH : SXTH) | RD3(dst) | RN3(dst));
        return push_inst32(compiler, (flags == SLJIT_REV_U16 ? UXTH_W : SXTH_W) | RD4(dst) | RM4(dst));
    case SLJIT_ADD:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
        if (IS_3_LO_REGS(dst, arg1, arg2))
            return push_inst16(compiler, ADDS | RD3(dst) | RN3(arg1) | RM3(arg2));
        if (dst == (sljit_s32)arg1 && !(flags & SET_FLAGS))
            return push_inst16(compiler, ADD | SET_REGS44(dst, arg2));
        return push_inst32(compiler, ADD_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_ADDC:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, ADCS | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, ADC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_SUB:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
        if (flags & UNUSED_RETURN) {
            if (IS_2_LO_REGS(arg1, arg2))
                return push_inst16(compiler, CMP | RD3(arg1) | RN3(arg2));
            return push_inst16(compiler, CMP_X | SET_REGS44(arg1, arg2));
        }
        if (IS_3_LO_REGS(dst, arg1, arg2))
            return push_inst16(compiler, SUBS | RD3(dst) | RN3(arg1) | RM3(arg2));
        return push_inst32(compiler, SUB_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_SUBC:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, SBCS | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, SBC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_MUL:
        compiler->status_flags_state = 0;
        if (!(flags & SET_FLAGS))
            return push_inst32(compiler, MUL | RD4(dst) | RN4(arg1) | RM4(arg2));
        reg = (dst == TMP_REG2) ? TMP_REG1 : TMP_REG2;
        FAIL_IF(push_inst32(compiler, SMULL | RT4(dst) | RD4(reg) | RN4(arg1) | RM4(arg2)));
        /* cmp TMP_REG2, dst asr #31. */
        return push_inst32(compiler, CMP_W | RN4(reg) | 0x70e0 | RM4(dst));
    case SLJIT_AND:
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, ANDS | RD3(dst) | RN3(arg2));
        if ((flags & UNUSED_RETURN) && IS_2_LO_REGS(arg1, arg2))
            return push_inst16(compiler, TST | RD3(arg1) | RN3(arg2));
        return push_inst32(compiler, ((flags & UNUSED_RETURN) ? TST_W : AND_W) | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_OR:
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, ORRS | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, ORR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_XOR:
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, EORS | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, EOR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_MSHL:
        reg = (arg2 == TMP_REG1) ? TMP_REG1 : TMP_REG2;
        FAIL_IF(push_inst32(compiler, ANDI | RD4(reg) | RN4(arg2) | 0x1f));
        arg2 = (sljit_uw)reg;
        /* fallthrough */
    case SLJIT_SHL:
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, LSLS | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, LSL_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_MLSHR:
        reg = (arg2 == TMP_REG1) ? TMP_REG1 : TMP_REG2;
        FAIL_IF(push_inst32(compiler, ANDI | RD4(reg) | RN4(arg2) | 0x1f));
        arg2 = (sljit_uw)reg;
        /* fallthrough */
    case SLJIT_LSHR:
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, LSRS | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, LSR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_MASHR:
        reg = (arg2 == TMP_REG1) ? TMP_REG1 : TMP_REG2;
        FAIL_IF(push_inst32(compiler, ANDI | RD4(reg) | RN4(arg2) | 0x1f));
        arg2 = (sljit_uw)reg;
        /* fallthrough */
    case SLJIT_ASHR:
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, ASRS | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, ASR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_ROTL:
        reg = (arg2 == TMP_REG1) ? TMP_REG1 : TMP_REG2;
        FAIL_IF(push_inst32(compiler, RSB_WI | RD4(reg) | RN4(arg2) | 0));
        arg2 = (sljit_uw)reg;
        /* fallthrough */
    case SLJIT_ROTR:
        if (dst == (sljit_s32)arg1 && IS_2_LO_REGS(dst, arg2))
            return push_inst16(compiler, RORS | RD3(dst) | RN3(arg2));
        return push_inst32(compiler, ROR_W | RD4(dst) | RN4(arg1) | RM4(arg2));
    case SLJIT_MULADD:
        compiler->status_flags_state = 0;
        return push_inst32(compiler, MLA | RD4(dst) | RN4(arg1) | RM4(arg2) | RT4(dst));
    }
 
    SLJIT_UNREACHABLE();
    return SLJIT_SUCCESS;
}
 
#define STORE       0x01
#define SIGNED      0x02
 
#define WORD_SIZE   0x00
#define BYTE_SIZE   0x04
#define HALF_SIZE   0x08
#define PRELOAD     0x0c
 
#define IS_WORD_SIZE(flags)     (!((flags) & (BYTE_SIZE | HALF_SIZE)))
#define ALIGN_CHECK(argw, imm, shift)   (!((argw) & ~((imm) << (shift))))
 
/*
  1st letter:
  w = word
  b = byte
  h = half
 
  2nd letter:
  s = signed
  u = unsigned
 
  3rd letter:
  l = load
  s = store
*/
 
static const sljit_ins sljit_mem16[12] = {
/* w u l */ 0x5800 /* ldr */,
/* w u s */ 0x5000 /* str */,
/* w s l */ 0x5800 /* ldr */,
/* w s s */ 0x5000 /* str */,
 
/* b u l */ 0x5c00 /* ldrb */,
/* b u s */ 0x5400 /* strb */,
/* b s l */ 0x5600 /* ldrsb */,
/* b s s */ 0x5400 /* strb */,
 
/* h u l */ 0x5a00 /* ldrh */,
/* h u s */ 0x5200 /* strh */,
/* h s l */ 0x5e00 /* ldrsh */,
/* h s s */ 0x5200 /* strh */,
};
 
static const sljit_ins sljit_mem16_imm5[12] = {
/* w u l */ 0x6800 /* ldr imm5 */,
/* w u s */ 0x6000 /* str imm5 */,
/* w s l */ 0x6800 /* ldr imm5 */,
/* w s s */ 0x6000 /* str imm5 */,
 
/* b u l */ 0x7800 /* ldrb imm5 */,
/* b u s */ 0x7000 /* strb imm5 */,
/* b s l */ 0x0000 /* not allowed */,
/* b s s */ 0x7000 /* strb imm5 */,
 
/* h u l */ 0x8800 /* ldrh imm5 */,
/* h u s */ 0x8000 /* strh imm5 */,
/* h s l */ 0x0000 /* not allowed */,
/* h s s */ 0x8000 /* strh imm5 */,
};
 
#define MEM_IMM8    0xc00
#define MEM_IMM12   0x800000
static const sljit_ins sljit_mem32[13] = {
/* w u l */ 0xf8500000 /* ldr.w */,
/* w u s */ 0xf8400000 /* str.w */,
/* w s l */ 0xf8500000 /* ldr.w */,
/* w s s */ 0xf8400000 /* str.w */,
 
/* b u l */ 0xf8100000 /* ldrb.w */,
/* b u s */ 0xf8000000 /* strb.w */,
/* b s l */ 0xf9100000 /* ldrsb.w */,
/* b s s */ 0xf8000000 /* strb.w */,
 
/* h u l */ 0xf8300000 /* ldrh.w */,
/* h u s */ 0xf8200000 /* strsh.w */,
/* h s l */ 0xf9300000 /* ldrsh.w */,
/* h s s */ 0xf8200000 /* strsh.w */,
 
/* p u l */ 0xf8100000 /* pld */,
};
 
/* Helper function. Dst should be reg + value, using at most 1 instruction, flags does not set. */
static sljit_s32 emit_set_delta(struct sljit_compiler *compiler, sljit_s32 dst, sljit_s32 reg, sljit_sw value)
{
    sljit_uw imm;
 
    if (value >= 0) {
        if (value <= 0xfff)
            return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(value));
        imm = get_imm((sljit_uw)value);
        if (imm != INVALID_IMM)
            return push_inst32(compiler, ADD_WI | RD4(dst) | RN4(reg) | imm);
    }
    else {
        value = -value;
        if (value <= 0xfff)
            return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(value));
        imm = get_imm((sljit_uw)value);
        if (imm != INVALID_IMM)
            return push_inst32(compiler, SUB_WI | RD4(dst) | RN4(reg) | imm);
    }
    return SLJIT_ERR_UNSUPPORTED;
}
 
static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg,
    sljit_s32 arg, sljit_sw argw, sljit_s32 tmp_reg)
{
    sljit_s32 other_r;
    sljit_uw imm, tmp;
 
    SLJIT_ASSERT(arg & SLJIT_MEM);
    SLJIT_ASSERT((arg & REG_MASK) != tmp_reg || (arg == SLJIT_MEM1(tmp_reg) && argw >= -0xff && argw <= 0xfff));
 
    if (SLJIT_UNLIKELY(!(arg & REG_MASK))) {
        imm = get_imm((sljit_uw)argw & ~(sljit_uw)0xfff);
        if (imm != INVALID_IMM) {
            FAIL_IF(push_inst32(compiler, MOV_WI | RD4(tmp_reg) | imm));
            return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(tmp_reg) | (argw & 0xfff));
        }
 
        FAIL_IF(load_immediate(compiler, tmp_reg, (sljit_uw)argw));
        if (IS_2_LO_REGS(reg, tmp_reg) && sljit_mem16_imm5[flags])
            return push_inst16(compiler, sljit_mem16_imm5[flags] | RD3(reg) | RN3(tmp_reg));
        return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(tmp_reg));
    }
 
    if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
        argw &= 0x3;
        other_r = OFFS_REG(arg);
        arg &= REG_MASK;
 
        if (!argw && IS_3_LO_REGS(reg, arg, other_r))
            return push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(other_r));
        return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(other_r) | ((sljit_ins)argw << 4));
    }
 
    arg &= REG_MASK;
 
    if (argw > 0xfff) {
        imm = get_imm((sljit_uw)(argw & ~0xfff));
        if (imm != INVALID_IMM) {
            push_inst32(compiler, ADD_WI | RD4(tmp_reg) | RN4(arg) | imm);
            arg = tmp_reg;
            argw = argw & 0xfff;
        }
    }
    else if (argw < -0xff) {
        tmp = (sljit_uw)((-argw + 0xfff) & ~0xfff);
        SLJIT_ASSERT(tmp >= (sljit_uw)-argw);
        imm = get_imm(tmp);
 
        if (imm != INVALID_IMM) {
            push_inst32(compiler, SUB_WI | RD4(tmp_reg) | RN4(arg) | imm);
            arg = tmp_reg;
            argw += (sljit_sw)tmp;
 
            SLJIT_ASSERT(argw >= 0 && argw <= 0xfff);
        }
    }
 
    /* 16 bit instruction forms. */
    if (IS_2_LO_REGS(reg, arg) && sljit_mem16_imm5[flags]) {
        tmp = 3;
        if (IS_WORD_SIZE(flags)) {
            if (ALIGN_CHECK(argw, 0x1f, 2))
                tmp = 2;
        }
        else if (flags & BYTE_SIZE)
        {
            if (ALIGN_CHECK(argw, 0x1f, 0))
                tmp = 0;
        }
        else {
            SLJIT_ASSERT(flags & HALF_SIZE);
            if (ALIGN_CHECK(argw, 0x1f, 1))
                tmp = 1;
        }
 
        if (tmp < 3)
            return push_inst16(compiler, sljit_mem16_imm5[flags] | RD3(reg) | RN3(arg) | ((sljit_ins)argw << (6 - tmp)));
    }
    else if (SLJIT_UNLIKELY(arg == SLJIT_SP) && IS_WORD_SIZE(flags) && ALIGN_CHECK(argw, 0xff, 2) && reg_map[reg] <= 7) {
        /* SP based immediate. */
        return push_inst16(compiler, STR_SP | (sljit_ins)((flags & STORE) ? 0 : 0x800) | RDN3(reg) | ((sljit_ins)argw >> 2));
    }
 
    if (argw >= 0 && argw <= 0xfff)
        return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(arg) | (sljit_ins)argw);
    else if (argw < 0 && argw >= -0xff)
        return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(arg) | (sljit_ins)-argw);
 
    SLJIT_ASSERT(arg != tmp_reg);
 
    FAIL_IF(load_immediate(compiler, tmp_reg, (sljit_uw)argw));
    if (IS_3_LO_REGS(reg, arg, tmp_reg))
        return push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(tmp_reg));
    return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(tmp_reg));
}
 
#undef ALIGN_CHECK
#undef IS_WORD_SIZE
 
/* --------------------------------------------------------------------- */
/*  Entry, exit                                                          */
/* --------------------------------------------------------------------- */
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
    sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
    sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
{
    sljit_s32 size, i, tmp, word_arg_count;
    sljit_s32 saved_arg_count = SLJIT_KEPT_SAVEDS_COUNT(options);
    sljit_uw offset;
    sljit_uw imm = 0;
#ifdef __SOFTFP__
    sljit_u32 float_arg_count;
#else
    sljit_u32 old_offset, f32_offset;
    sljit_u32 remap[3];
    sljit_u32 *remap_ptr = remap;
#endif
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
    set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
 
    tmp = SLJIT_S0 - saveds;
    for (i = SLJIT_S0 - saved_arg_count; i > tmp; i--)
        imm |= (sljit_uw)1 << reg_map[i];
 
    for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--)
        imm |= (sljit_uw)1 << reg_map[i];
 
    /* At least two registers must be set for PUSH_W and one for PUSH instruction. */
    FAIL_IF((imm & 0xff00)
        ? push_inst32(compiler, PUSH_W | (1 << 14) | imm)
        : push_inst16(compiler, PUSH | (1 << 8) | imm));
 
    /* Stack must be aligned to 8 bytes: (LR, R4) */
    size = GET_SAVED_REGISTERS_SIZE(scratches, saveds - saved_arg_count, 1);
 
    if (fsaveds > 0 || fscratches >= SLJIT_FIRST_SAVED_FLOAT_REG) {
        if ((size & SSIZE_OF(sw)) != 0) {
            FAIL_IF(push_inst16(compiler, SUB_SP_I | (sizeof(sljit_sw) >> 2)));
            size += SSIZE_OF(sw);
        }
 
        if (fsaveds + fscratches >= SLJIT_NUMBER_OF_FLOAT_REGISTERS) {
            FAIL_IF(push_inst32(compiler, VPUSH | VD4(SLJIT_FS0) | ((sljit_uw)SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS << 1)));
        } else {
            if (fsaveds > 0)
                FAIL_IF(push_inst32(compiler, VPUSH | VD4(SLJIT_FS0) | ((sljit_uw)fsaveds << 1)));
            if (fscratches >= SLJIT_FIRST_SAVED_FLOAT_REG)
                FAIL_IF(push_inst32(compiler, VPUSH | VD4(fscratches) | ((sljit_uw)(fscratches - (SLJIT_FIRST_SAVED_FLOAT_REG - 1)) << 1)));
        }
    }
 
    local_size = ((size + local_size + 0x7) & ~0x7) - size;
    compiler->local_size = local_size;
 
    if (options & SLJIT_ENTER_REG_ARG)
        arg_types = 0;
 
    arg_types >>= SLJIT_ARG_SHIFT;
    word_arg_count = 0;
    saved_arg_count = 0;
#ifdef __SOFTFP__
    SLJIT_COMPILE_ASSERT(SLJIT_FR0 == 1, float_register_index_start);
 
    offset = 0;
    float_arg_count = 0;
 
    while (arg_types) {
        switch (arg_types & SLJIT_ARG_MASK) {
        case SLJIT_ARG_TYPE_F64:
            if (offset & 0x7)
                offset += sizeof(sljit_sw);
 
            if (offset < 4 * sizeof(sljit_sw))
                FAIL_IF(push_inst32(compiler, VMOV2 | (offset << 10) | ((offset + sizeof(sljit_sw)) << 14) | float_arg_count));
            else
                FAIL_IF(push_inst32(compiler, VLDR_F32 | 0x800100 | RN4(SLJIT_SP)
                    | (float_arg_count << 12) | ((offset + (sljit_uw)size - 4 * sizeof(sljit_sw)) >> 2)));
            float_arg_count++;
            offset += sizeof(sljit_f64) - sizeof(sljit_sw);
            break;
        case SLJIT_ARG_TYPE_F32:
            if (offset < 4 * sizeof(sljit_sw))
                FAIL_IF(push_inst32(compiler, VMOV | (float_arg_count << 16) | (offset << 10)));
            else
                FAIL_IF(push_inst32(compiler, VLDR_F32 | 0x800000 | RN4(SLJIT_SP)
                    | (float_arg_count << 12) | ((offset + (sljit_uw)size - 4 * sizeof(sljit_sw)) >> 2)));
            float_arg_count++;
            break;
        default:
            word_arg_count++;
 
            if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
                tmp = SLJIT_S0 - saved_arg_count;
                saved_arg_count++;
            } else if (word_arg_count - 1 != (sljit_s32)(offset >> 2))
                tmp = word_arg_count;
            else
                break;
 
            if (offset < 4 * sizeof(sljit_sw))
                FAIL_IF(push_inst16(compiler, MOV | ((sljit_ins)reg_map[tmp] & 0x7) | (((sljit_ins)reg_map[tmp] & 0x8) << 4) | (offset << 1)));
            else if (reg_map[tmp] <= 7)
                FAIL_IF(push_inst16(compiler, LDR_SP | RDN3(tmp)
                    | ((offset + (sljit_uw)size - 4 * sizeof(sljit_sw)) >> 2)));
            else
                FAIL_IF(push_inst32(compiler, LDR | RT4(tmp) | RN4(SLJIT_SP)
                    | ((offset + (sljit_uw)size - 4 * sizeof(sljit_sw)))));
            break;
        }
 
        offset += sizeof(sljit_sw);
        arg_types >>= SLJIT_ARG_SHIFT;
    }
 
    compiler->args_size = offset;
#else
    offset = SLJIT_FR0;
    old_offset = SLJIT_FR0;
    f32_offset = 0;
 
    while (arg_types) {
        switch (arg_types & SLJIT_ARG_MASK) {
        case SLJIT_ARG_TYPE_F64:
            if (offset != old_offset)
                *remap_ptr++ = VMOV_F32 | SLJIT_32 | VD4(offset) | VM4(old_offset);
            old_offset++;
            offset++;
            break;
        case SLJIT_ARG_TYPE_F32:
            if (f32_offset != 0) {
                *remap_ptr++ = VMOV_F32 | 0x20 | VD4(offset) | VM4(f32_offset);
                f32_offset = 0;
            } else {
                if (offset != old_offset)
                    *remap_ptr++ = VMOV_F32 | VD4(offset) | VM4(old_offset);
                f32_offset = old_offset;
                old_offset++;
            }
            offset++;
            break;
        default:
            if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
                FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_S0 - saved_arg_count, SLJIT_R0 + word_arg_count)));
                saved_arg_count++;
            }
 
            word_arg_count++;
            break;
        }
        arg_types >>= SLJIT_ARG_SHIFT;
    }
 
    SLJIT_ASSERT((sljit_uw)(remap_ptr - remap) <= sizeof(remap));
 
    while (remap_ptr > remap)
        FAIL_IF(push_inst32(compiler, *(--remap_ptr)));
#endif
 
#ifdef _WIN32
    if (local_size >= 4096) {
        imm = get_imm(4096);
        SLJIT_ASSERT(imm != INVALID_IMM);
 
        FAIL_IF(push_inst32(compiler, SUB_WI | RD4(SLJIT_SP) | RN4(SLJIT_SP) | imm));
 
        if (local_size < 4 * 4096) {
            if (local_size > 2 * 4096) {
                if (local_size > 3 * 4096) {
                    FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG1) | RN4(SLJIT_SP)));
                    FAIL_IF(push_inst32(compiler, SUB_WI | RD4(SLJIT_SP) | RN4(SLJIT_SP) | imm));
                }
 
                FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG1) | RN4(SLJIT_SP)));
                FAIL_IF(push_inst32(compiler, SUB_WI | RD4(SLJIT_SP) | RN4(SLJIT_SP) | imm));
            }
        } else {
            FAIL_IF(load_immediate(compiler, TMP_REG2, ((sljit_uw)local_size >> 12) - 1));
            FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG1) | RN4(SLJIT_SP)));
            FAIL_IF(push_inst32(compiler, SUB_WI | RD4(SLJIT_SP) | RN4(SLJIT_SP) | imm));
            FAIL_IF(push_inst32(compiler, SUB_WI | SET_FLAGS | RD4(TMP_REG2) | RN4(TMP_REG2) | 1));
            FAIL_IF(push_inst16(compiler, BCC | (0x1 << 8) /* not-equal */ | (-8 & 0xff)));
        }
 
        FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG1) | RN4(SLJIT_SP)));
        local_size &= 0xfff;
    }
 
    if (local_size >= 256) {
        SLJIT_ASSERT(local_size < 4096);
 
        if (local_size <= (127 << 2))
            FAIL_IF(push_inst16(compiler, SUB_SP_I | ((sljit_uw)local_size >> 2)));
        else
            FAIL_IF(emit_op_imm(compiler, SLJIT_SUB | ARG2_IMM, SLJIT_SP, SLJIT_SP, (sljit_uw)local_size));
 
        FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG1) | RN4(SLJIT_SP)));
    } else if (local_size > 0)
        FAIL_IF(push_inst32(compiler, LDRI | 0x500 | RT4(TMP_REG1) | RN4(SLJIT_SP) | (sljit_uw)local_size));
#else /* !_WIN32 */
    if (local_size > 0) {
        if (local_size <= (127 << 2))
            FAIL_IF(push_inst16(compiler, SUB_SP_I | ((sljit_uw)local_size >> 2)));
        else
            FAIL_IF(emit_op_imm(compiler, SLJIT_SUB | ARG2_IMM, SLJIT_SP, SLJIT_SP, (sljit_uw)local_size));
    }
#endif /* _WIN32 */
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
    sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
    sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
{
    sljit_s32 size;
 
    CHECK_ERROR();
    CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
    set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
 
    size = GET_SAVED_REGISTERS_SIZE(scratches, saveds - SLJIT_KEPT_SAVEDS_COUNT(options), 1);
 
    /* Doubles are saved, so alignment is unaffected. */
    if ((size & SSIZE_OF(sw)) != 0 && (fsaveds > 0 || fscratches >= SLJIT_FIRST_SAVED_FLOAT_REG))
        size += SSIZE_OF(sw);
 
    compiler->local_size = ((size + local_size + 0x7) & ~0x7) - size;
    return SLJIT_SUCCESS;
}
 
static sljit_s32 emit_add_sp(struct sljit_compiler *compiler, sljit_uw imm)
{
    sljit_uw imm2;
 
    /* The TMP_REG1 register must keep its value. */
    if (imm <= (127u << 2))
        return push_inst16(compiler, ADD_SP_I | (imm >> 2));
 
    if (imm <= 0xfff)
        return push_inst32(compiler, ADDWI | RD4(SLJIT_SP) | RN4(SLJIT_SP) | IMM12(imm));
 
    imm2 = get_imm(imm);
 
    if (imm2 != INVALID_IMM)
        return push_inst32(compiler, ADD_WI | RD4(SLJIT_SP) | RN4(SLJIT_SP) | imm2);
 
    FAIL_IF(load_immediate(compiler, TMP_REG2, imm));
    return push_inst16(compiler, ADD_SP | RN3(TMP_REG2));
}
 
static sljit_s32 emit_stack_frame_release(struct sljit_compiler *compiler, sljit_s32 frame_size)
{
    sljit_s32 local_size, fscratches, fsaveds, i, tmp;
    sljit_s32 restored_reg = 0;
    sljit_s32 lr_dst = TMP_PC;
    sljit_uw reg_list = 0;
 
    SLJIT_ASSERT(reg_map[TMP_REG2] == 14 && frame_size <= 128);
 
    local_size = compiler->local_size;
    fscratches = compiler->fscratches;
    fsaveds = compiler->fsaveds;
 
    if (fsaveds > 0 || fscratches >= SLJIT_FIRST_SAVED_FLOAT_REG) {
        if (local_size > 0)
            FAIL_IF(emit_add_sp(compiler, (sljit_uw)local_size));
 
        if (fsaveds + fscratches >= SLJIT_NUMBER_OF_FLOAT_REGISTERS) {
            FAIL_IF(push_inst32(compiler, VPOP | VD4(SLJIT_FS0) | ((sljit_uw)SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS << 1)));
        } else {
            if (fscratches >= SLJIT_FIRST_SAVED_FLOAT_REG)
                FAIL_IF(push_inst32(compiler, VPOP | VD4(fscratches) | ((sljit_uw)(fscratches - (SLJIT_FIRST_SAVED_FLOAT_REG - 1)) << 1)));
            if (fsaveds > 0)
                FAIL_IF(push_inst32(compiler, VPOP | VD4(SLJIT_FS0) | ((sljit_uw)fsaveds << 1)));
        }
 
        local_size = GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds, 1) & 0x7;
    }
 
    if (frame_size < 0) {
        lr_dst = TMP_REG2;
        frame_size = 0;
    } else if (frame_size > 0) {
        SLJIT_ASSERT(frame_size == 1 || (frame_size & 0x7) == 0);
        lr_dst = 0;
        frame_size &= ~0x7;
    }
 
    tmp = SLJIT_S0 - compiler->saveds;
    i = SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options);
    if (tmp < i) {
        restored_reg = i;
        do {
            reg_list |= (sljit_uw)1 << reg_map[i];
        } while (--i > tmp);
    }
 
    i = compiler->scratches;
    if (i >= SLJIT_FIRST_SAVED_REG) {
        restored_reg = i;
        do {
            reg_list |= (sljit_uw)1 << reg_map[i];
        } while (--i >= SLJIT_FIRST_SAVED_REG);
    }
 
    if (lr_dst == TMP_REG2 && reg_list == 0) {
        reg_list |= (sljit_uw)1 << reg_map[TMP_REG2];
        restored_reg = TMP_REG2;
        lr_dst = 0;
    }
 
    if (lr_dst == 0 && (reg_list & (reg_list - 1)) == 0) {
        /* The local_size does not include the saved registers. */
        tmp = 0;
        if (reg_list != 0) {
            tmp = 2;
            if (local_size <= 0xfff) {
                if (local_size == 0) {
                    SLJIT_ASSERT(restored_reg != TMP_REG2);
                    if (frame_size == 0)
                        return push_inst32(compiler, LDRI | RT4(restored_reg) | RN4(SLJIT_SP) | 0x308);
                    if (frame_size > 2 * SSIZE_OF(sw))
                        return push_inst32(compiler, LDRI | RT4(restored_reg) | RN4(SLJIT_SP) | 0x100 | (sljit_ins)(frame_size - (2 * SSIZE_OF(sw))));
                }
 
                if (reg_map[restored_reg] <= 7 && local_size <= 0x3fc)
                    FAIL_IF(push_inst16(compiler, STR_SP | 0x800 | RDN3(restored_reg) | (sljit_ins)(local_size >> 2)));
                else
                    FAIL_IF(push_inst32(compiler, LDR | RT4(restored_reg) | RN4(SLJIT_SP) | (sljit_ins)local_size));
                tmp = 1;
            } else if (frame_size == 0) {
                frame_size = (restored_reg == TMP_REG2) ? SSIZE_OF(sw) : 2 * SSIZE_OF(sw);
                tmp = 3;
            }
 
            /* Place for the saved register. */
            if (restored_reg != TMP_REG2)
                local_size += SSIZE_OF(sw);
        }
 
        /* Place for the lr register. */
        local_size += SSIZE_OF(sw);
 
        if (frame_size > local_size)
            FAIL_IF(push_inst16(compiler, SUB_SP_I | ((sljit_ins)(frame_size - local_size) >> 2)));
        else if (frame_size < local_size)
            FAIL_IF(emit_add_sp(compiler, (sljit_uw)(local_size - frame_size)));
 
        if (tmp <= 1)
            return SLJIT_SUCCESS;
 
        if (tmp == 2) {
            frame_size -= SSIZE_OF(sw);
            if (restored_reg != TMP_REG2)
                frame_size -= SSIZE_OF(sw);
 
            if (reg_map[restored_reg] <= 7)
                return push_inst16(compiler, STR_SP | 0x800 | RDN3(restored_reg) | (sljit_ins)(frame_size >> 2));
 
            return push_inst32(compiler, LDR | RT4(restored_reg) | RN4(SLJIT_SP) | (sljit_ins)frame_size);
        }
 
        tmp = (restored_reg == TMP_REG2) ? 0x304 : 0x308;
        return push_inst32(compiler, LDRI | RT4(restored_reg) | RN4(SLJIT_SP) | (sljit_ins)tmp);
    }
 
    if (local_size > 0)
        FAIL_IF(emit_add_sp(compiler, (sljit_uw)local_size));
 
    if (!(reg_list & 0xff00) && lr_dst != TMP_REG2) {
        if (lr_dst == TMP_PC)
            reg_list |= 1u << 8;
 
        /* At least one register must be set for POP instruction. */
        SLJIT_ASSERT(reg_list != 0);
 
        FAIL_IF(push_inst16(compiler, POP | reg_list));
    } else {
        if (lr_dst != 0)
            reg_list |= (sljit_uw)1 << reg_map[lr_dst];
 
        /* At least two registers must be set for POP_W instruction. */
        SLJIT_ASSERT((reg_list & (reg_list - 1)) != 0);
 
        FAIL_IF(push_inst32(compiler, POP_W | reg_list));
    }
 
    if (frame_size > 0)
        return push_inst16(compiler, SUB_SP_I | (((sljit_ins)frame_size - sizeof(sljit_sw)) >> 2));
 
    if (lr_dst != 0)
        return SLJIT_SUCCESS;
 
    return push_inst16(compiler, ADD_SP_I | 1);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_void(struct sljit_compiler *compiler)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_return_void(compiler));
 
    return emit_stack_frame_release(compiler, 0);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_to(struct sljit_compiler *compiler,
    sljit_s32 src, sljit_sw srcw)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_return_to(compiler, src, srcw));
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
        src = TMP_REG1;
        srcw = 0;
    } else if (src >= SLJIT_FIRST_SAVED_REG && src <= (SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options))) {
        FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG1, src)));
        src = TMP_REG1;
        srcw = 0;
    }
 
    FAIL_IF(emit_stack_frame_release(compiler, 1));
 
    SLJIT_SKIP_CHECKS(compiler);
    return sljit_emit_ijump(compiler, SLJIT_JUMP, src, srcw);
}
 
/* --------------------------------------------------------------------- */
/*  Operators                                                            */
/* --------------------------------------------------------------------- */
 
#if !(defined __ARM_FEATURE_IDIV) && !(defined __ARM_ARCH_EXT_IDIV__)
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifdef _WIN32
extern unsigned long long __rt_udiv(unsigned int denominator, unsigned int numerator);
extern long long __rt_sdiv(int denominator, int numerator);
#elif defined(__GNUC__)
extern unsigned int __aeabi_uidivmod(unsigned int numerator, int unsigned denominator);
extern int __aeabi_idivmod(int numerator, int denominator);
#else
#error "Software divmod functions are needed"
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif /* !__ARM_FEATURE_IDIV && !__ARM_ARCH_EXT_IDIV__ */
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
{
#if !(defined __ARM_FEATURE_IDIV) && !(defined __ARM_ARCH_EXT_IDIV__)
    sljit_uw saved_reg_list[3];
    sljit_uw saved_reg_count;
#endif
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op0(compiler, op));
 
    op = GET_OPCODE(op);
    switch (op) {
    case SLJIT_BREAKPOINT:
        return push_inst16(compiler, BKPT);
    case SLJIT_NOP:
        return push_inst16(compiler, NOP);
    case SLJIT_LMUL_UW:
    case SLJIT_LMUL_SW:
        return push_inst32(compiler, (op == SLJIT_LMUL_UW ? UMULL : SMULL)
            | RD4(SLJIT_R1) | RT4(SLJIT_R0) | RN4(SLJIT_R0) | RM4(SLJIT_R1));
#if (defined __ARM_FEATURE_IDIV) || (defined __ARM_ARCH_EXT_IDIV__)
    case SLJIT_DIVMOD_UW:
    case SLJIT_DIVMOD_SW:
        FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG1, SLJIT_R0)));
        FAIL_IF(push_inst32(compiler, (op == SLJIT_DIVMOD_UW ? UDIV : SDIV) | RD4(SLJIT_R0) | RN4(SLJIT_R0) | RM4(SLJIT_R1)));
        FAIL_IF(push_inst32(compiler, MUL | RD4(SLJIT_R1) | RN4(SLJIT_R0) | RM4(SLJIT_R1)));
        return push_inst32(compiler, SUB_W | RD4(SLJIT_R1) | RN4(TMP_REG1) | RM4(SLJIT_R1));
    case SLJIT_DIV_UW:
    case SLJIT_DIV_SW:
        return push_inst32(compiler, (op == SLJIT_DIV_UW ? UDIV : SDIV) | RD4(SLJIT_R0) | RN4(SLJIT_R0) | RM4(SLJIT_R1));
#else /* !__ARM_FEATURE_IDIV && !__ARM_ARCH_EXT_IDIV__ */
    case SLJIT_DIVMOD_UW:
    case SLJIT_DIVMOD_SW:
    case SLJIT_DIV_UW:
    case SLJIT_DIV_SW:
        SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
        SLJIT_ASSERT(reg_map[2] == 1 && reg_map[3] == 2 && reg_map[4] == 3);
 
        saved_reg_count = 0;
        if (compiler->scratches >= 4)
            saved_reg_list[saved_reg_count++] = 3;
        if (compiler->scratches >= 3)
            saved_reg_list[saved_reg_count++] = 2;
        if (op >= SLJIT_DIV_UW)
            saved_reg_list[saved_reg_count++] = 1;
 
        if (saved_reg_count > 0) {
            FAIL_IF(push_inst32(compiler, 0xf84d0d00 | (saved_reg_count >= 3 ? 16 : 8)
                        | (saved_reg_list[0] << 12) /* str rX, [sp, #-8/-16]! */));
            if (saved_reg_count >= 2) {
                SLJIT_ASSERT(saved_reg_list[1] < 8);
                FAIL_IF(push_inst16(compiler, 0x9001 | (saved_reg_list[1] << 8) /* str rX, [sp, #4] */));
            }
            if (saved_reg_count >= 3) {
                SLJIT_ASSERT(saved_reg_list[2] < 8);
                FAIL_IF(push_inst16(compiler, 0x9002 | (saved_reg_list[2] << 8) /* str rX, [sp, #8] */));
            }
        }
 
#ifdef _WIN32
        FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG1, SLJIT_R0)));
        FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_R0, SLJIT_R1)));
        FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_R1, TMP_REG1)));
        FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
            ((op | 0x2) == SLJIT_DIV_UW ? SLJIT_FUNC_ADDR(__rt_udiv) : SLJIT_FUNC_ADDR(__rt_sdiv))));
#elif defined(__GNUC__)
        FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
            ((op | 0x2) == SLJIT_DIV_UW ? SLJIT_FUNC_ADDR(__aeabi_uidivmod) : SLJIT_FUNC_ADDR(__aeabi_idivmod))));
#else
#error "Software divmod functions are needed"
#endif
 
        if (saved_reg_count > 0) {
            if (saved_reg_count >= 3) {
                SLJIT_ASSERT(saved_reg_list[2] < 8);
                FAIL_IF(push_inst16(compiler, 0x9802 | (saved_reg_list[2] << 8) /* ldr rX, [sp, #8] */));
            }
            if (saved_reg_count >= 2) {
                SLJIT_ASSERT(saved_reg_list[1] < 8);
                FAIL_IF(push_inst16(compiler, 0x9801 | (saved_reg_list[1] << 8) /* ldr rX, [sp, #4] */));
            }
            return push_inst32(compiler, 0xf85d0b00 | (saved_reg_count >= 3 ? 16 : 8)
                        | (saved_reg_list[0] << 12) /* ldr rX, [sp], #8/16 */);
        }
        return SLJIT_SUCCESS;
#endif /* __ARM_FEATURE_IDIV || __ARM_ARCH_EXT_IDIV__ */
    case SLJIT_ENDBR:
    case SLJIT_SKIP_FRAMES_BEFORE_RETURN:
        return SLJIT_SUCCESS;
    }
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src, sljit_sw srcw)
{
    sljit_s32 dst_r, flags;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
    ADJUST_LOCAL_OFFSET(dst, dstw);
    ADJUST_LOCAL_OFFSET(src, srcw);
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
 
    op = GET_OPCODE(op);
    if (op >= SLJIT_MOV && op <= SLJIT_MOV_P) {
        switch (op) {
        case SLJIT_MOV:
        case SLJIT_MOV_U32:
        case SLJIT_MOV_S32:
        case SLJIT_MOV32:
        case SLJIT_MOV_P:
            flags = WORD_SIZE;
            break;
        case SLJIT_MOV_U8:
            flags = BYTE_SIZE;
            if (src == SLJIT_IMM)
                srcw = (sljit_u8)srcw;
            break;
        case SLJIT_MOV_S8:
            flags = BYTE_SIZE | SIGNED;
            if (src == SLJIT_IMM)
                srcw = (sljit_s8)srcw;
            break;
        case SLJIT_MOV_U16:
            flags = HALF_SIZE;
            if (src == SLJIT_IMM)
                srcw = (sljit_u16)srcw;
            break;
        case SLJIT_MOV_S16:
            flags = HALF_SIZE | SIGNED;
            if (src == SLJIT_IMM)
                srcw = (sljit_s16)srcw;
            break;
        default:
            SLJIT_UNREACHABLE();
            flags = 0;
            break;
        }
 
        if (src == SLJIT_IMM)
            FAIL_IF(emit_op_imm(compiler, SLJIT_MOV | ARG2_IMM, dst_r, TMP_REG2, (sljit_uw)srcw));
        else if (src & SLJIT_MEM)
            FAIL_IF(emit_op_mem(compiler, flags, dst_r, src, srcw, TMP_REG1));
        else if (FAST_IS_REG(dst))
            return emit_op_imm(compiler, op, dst_r, TMP_REG2, (sljit_uw)src);
        else
            dst_r = src;
 
        if (!(dst & SLJIT_MEM))
            return SLJIT_SUCCESS;
 
        return emit_op_mem(compiler, flags | STORE, dst_r, dst, dstw, TMP_REG1);
    }
 
    SLJIT_COMPILE_ASSERT(WORD_SIZE == 0, word_size_must_be_0);
    flags = WORD_SIZE;
 
    if (op == SLJIT_REV_U16 || op == SLJIT_REV_S16) {
        if (!(dst & SLJIT_MEM) && (!(src & SLJIT_MEM) || op == SLJIT_REV_S16))
            op |= REGISTER_OP;
        flags |= HALF_SIZE;
    }
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, flags, TMP_REG1, src, srcw, TMP_REG1));
        src = TMP_REG1;
    }
 
    emit_op_imm(compiler, op, dst_r, TMP_REG2, (sljit_uw)src);
 
    if (SLJIT_UNLIKELY(dst & SLJIT_MEM))
        return emit_op_mem(compiler, flags | STORE, dst_r, dst, dstw, TMP_REG1);
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2, sljit_sw src2w)
{
    sljit_s32 dst_reg, src2_tmp_reg, flags;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op2(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w));
    ADJUST_LOCAL_OFFSET(dst, dstw);
    ADJUST_LOCAL_OFFSET(src1, src1w);
    ADJUST_LOCAL_OFFSET(src2, src2w);
 
    dst_reg = FAST_IS_REG(dst) ? dst : TMP_REG2;
    flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
 
    if (dst == TMP_REG1)
        flags |= UNUSED_RETURN;
 
    if (src2 == SLJIT_IMM)
        flags |= ARG2_IMM;
    else if (src2 & SLJIT_MEM) {
        src2_tmp_reg = FAST_IS_REG(src1) ? TMP_REG1 : TMP_REG2;
        emit_op_mem(compiler, WORD_SIZE, src2_tmp_reg, src2, src2w, TMP_REG1);
        src2w = src2_tmp_reg;
    } else
        src2w = src2;
 
    if (src1 == SLJIT_IMM)
        flags |= ARG1_IMM;
    else if (src1 & SLJIT_MEM) {
        emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src1, src1w, TMP_REG1);
        src1w = TMP_REG1;
    } else
        src1w = src1;
 
    emit_op_imm(compiler, flags | GET_OPCODE(op), dst_reg, (sljit_uw)src1w, (sljit_uw)src2w);
 
    if (!(dst & SLJIT_MEM))
        return SLJIT_SUCCESS;
    return emit_op_mem(compiler, WORD_SIZE | STORE, dst_reg, dst, dstw, TMP_REG1);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2u(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2, sljit_sw src2w)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_op2(compiler, op, 1, 0, 0, src1, src1w, src2, src2w));
 
    SLJIT_SKIP_CHECKS(compiler);
    return sljit_emit_op2(compiler, op, TMP_REG1, 0, src1, src1w, src2, src2w);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2r(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst_reg,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2, sljit_sw src2w)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_op2r(compiler, op, dst_reg, src1, src1w, src2, src2w));
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MULADD:
        SLJIT_SKIP_CHECKS(compiler);
        return sljit_emit_op2(compiler, op, dst_reg, 0, src1, src1w, src2, src2w);
    }
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_shift_into(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst_reg,
    sljit_s32 src1_reg,
    sljit_s32 src2_reg,
    sljit_s32 src3, sljit_sw src3w)
{
    sljit_s32 is_left;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_shift_into(compiler, op, dst_reg, src1_reg, src2_reg, src3, src3w));
 
    op = GET_OPCODE(op);
    is_left = (op == SLJIT_SHL || op == SLJIT_MSHL);
 
    if (src1_reg == src2_reg) {
        SLJIT_SKIP_CHECKS(compiler);
        return sljit_emit_op2(compiler, is_left ? SLJIT_ROTL : SLJIT_ROTR, dst_reg, 0, src1_reg, 0, src3, src3w);
    }
 
    ADJUST_LOCAL_OFFSET(src3, src3w);
 
    if (src3 == SLJIT_IMM) {
        src3w &= 0x1f;
 
        if (src3w == 0)
            return SLJIT_SUCCESS;
 
        if (IS_2_LO_REGS(dst_reg, src1_reg))
            FAIL_IF(push_inst16(compiler, (is_left ? LSLSI : LSRSI) | RD3(dst_reg) | RN3(src1_reg) | ((sljit_ins)src3w << 6)));
        else
            FAIL_IF(push_inst32(compiler, (is_left ? LSL_WI : LSR_WI) | RD4(dst_reg) | RM4(src1_reg) | IMM5(src3w)));
 
        src3w = (src3w ^ 0x1f) + 1;
        return push_inst32(compiler, ORR_W | RD4(dst_reg) | RN4(dst_reg) | RM4(src2_reg) | (is_left ? 0x10 : 0x0) | IMM5(src3w));
    }
 
    if (src3 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, src3, src3w, TMP_REG2));
        src3 = TMP_REG2;
    }
 
    if (op == SLJIT_MSHL || op == SLJIT_MLSHR || dst_reg == src3) {
        FAIL_IF(push_inst32(compiler, ANDI | RD4(TMP_REG2) | RN4(src3) | 0x1f));
        src3 = TMP_REG2;
    }
 
    if (dst_reg == src1_reg && IS_2_LO_REGS(dst_reg, src3))
        FAIL_IF(push_inst16(compiler, (is_left ? LSLS : LSRS) | RD3(dst_reg) | RN3(src3)));
    else
        FAIL_IF(push_inst32(compiler, (is_left ? LSL_W : LSR_W) | RD4(dst_reg) | RN4(src1_reg) | RM4(src3)));
 
    FAIL_IF(push_inst32(compiler, (is_left ? LSR_WI : LSL_WI) | RD4(TMP_REG1) | RM4(src2_reg) | (1 << 6)));
    FAIL_IF(push_inst32(compiler, EORI | RD4(TMP_REG2) | RN4(src3) | 0x1f));
    FAIL_IF(push_inst32(compiler, (is_left ? LSR_W : LSL_W) | RD4(TMP_REG1) | RN4(TMP_REG1) | RM4(TMP_REG2)));
    return push_inst32(compiler, ORR_W | RD4(dst_reg) | RN4(dst_reg) | RM4(TMP_REG1));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_src(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 src, sljit_sw srcw)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_op_src(compiler, op, src, srcw));
    ADJUST_LOCAL_OFFSET(src, srcw);
 
    switch (op) {
    case SLJIT_FAST_RETURN:
        SLJIT_ASSERT(reg_map[TMP_REG2] == 14);
 
        if (FAST_IS_REG(src))
            FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG2, src)));
        else
            FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, src, srcw, TMP_REG2));
 
        return push_inst16(compiler, BX | RN3(TMP_REG2));
    case SLJIT_SKIP_FRAMES_BEFORE_FAST_RETURN:
        return SLJIT_SUCCESS;
    case SLJIT_PREFETCH_L1:
    case SLJIT_PREFETCH_L2:
    case SLJIT_PREFETCH_L3:
    case SLJIT_PREFETCH_ONCE:
        return emit_op_mem(compiler, PRELOAD, TMP_PC, src, srcw, TMP_REG1);
    }
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_dst(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw)
{
    sljit_s32 size, dst_r;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op_dst(compiler, op, dst, dstw));
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    switch (op) {
    case SLJIT_FAST_ENTER:
        SLJIT_ASSERT(reg_map[TMP_REG2] == 14);
 
        if (FAST_IS_REG(dst))
            return push_inst16(compiler, MOV | SET_REGS44(dst, TMP_REG2));
        break;
    case SLJIT_GET_RETURN_ADDRESS:
        size = GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds - SLJIT_KEPT_SAVEDS_COUNT(compiler->options), 0);
 
        if (compiler->fsaveds > 0 || compiler->fscratches >= SLJIT_FIRST_SAVED_FLOAT_REG) {
            /* The size of pc is not added above. */
            if ((size & SSIZE_OF(sw)) == 0)
                size += SSIZE_OF(sw);
 
            size += GET_SAVED_FLOAT_REGISTERS_SIZE(compiler->fscratches, compiler->fsaveds, f64);
        }
 
        SLJIT_ASSERT(((compiler->local_size + size + SSIZE_OF(sw)) & 0x7) == 0);
 
        dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, dst_r, SLJIT_MEM1(SLJIT_SP), compiler->local_size + size, TMP_REG1));
        break;
    }
 
    if (dst & SLJIT_MEM)
        return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG2, dst, dstw, TMP_REG1);
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 type, sljit_s32 reg)
{
    CHECK_REG_INDEX(check_sljit_get_register_index(type, reg));
 
    if (type == SLJIT_GP_REGISTER)
        return reg_map[reg];
 
    if (type == SLJIT_FLOAT_REGISTER || type == SLJIT_SIMD_REG_64)
        return freg_map[reg];
 
    if (type != SLJIT_SIMD_REG_128)
        return freg_map[reg] & ~0x1;
 
    return -1;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
    void *instruction, sljit_u32 size)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
 
    if (size == 2)
        return push_inst16(compiler, *(sljit_u16*)instruction);
    return push_inst32(compiler, *(sljit_ins*)instruction);
}
 
/* --------------------------------------------------------------------- */
/*  Floating point operators                                             */
/* --------------------------------------------------------------------- */
 
#define FPU_LOAD (1 << 20)
 
static sljit_s32 emit_fop_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
{
    sljit_uw imm;
    sljit_ins inst = VSTR_F32 | (flags & (SLJIT_32 | FPU_LOAD));
 
    SLJIT_ASSERT(arg & SLJIT_MEM);
 
    /* Fast loads and stores. */
    if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
        FAIL_IF(push_inst32(compiler, ADD_W | RD4(TMP_REG1) | RN4(arg & REG_MASK) | RM4(OFFS_REG(arg)) | (((sljit_uw)argw & 0x3) << 6)));
        arg = SLJIT_MEM | TMP_REG1;
        argw = 0;
    }
 
    if ((arg & REG_MASK) && (argw & 0x3) == 0) {
        if (!(argw & ~0x3fc))
            return push_inst32(compiler, inst | 0x800000 | RN4(arg & REG_MASK) | VD4(reg) | ((sljit_uw)argw >> 2));
        if (!(-argw & ~0x3fc))
            return push_inst32(compiler, inst | RN4(arg & REG_MASK) | VD4(reg) | ((sljit_uw)-argw >> 2));
    }
 
    if (arg & REG_MASK) {
        if (emit_set_delta(compiler, TMP_REG1, arg & REG_MASK, argw) != SLJIT_ERR_UNSUPPORTED) {
            FAIL_IF(compiler->error);
            return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | VD4(reg));
        }
 
        imm = get_imm((sljit_uw)argw & ~(sljit_uw)0x3fc);
        if (imm != INVALID_IMM) {
            FAIL_IF(push_inst32(compiler, ADD_WI | RD4(TMP_REG1) | RN4(arg & REG_MASK) | imm));
            return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | VD4(reg) | (((sljit_uw)argw & 0x3fc) >> 2));
        }
 
        imm = get_imm((sljit_uw)-argw & ~(sljit_uw)0x3fc);
        if (imm != INVALID_IMM) {
            argw = -argw;
            FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(arg & REG_MASK) | imm));
            return push_inst32(compiler, inst | RN4(TMP_REG1) | VD4(reg) | (((sljit_uw)argw & 0x3fc) >> 2));
        }
    }
 
    FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)argw));
    if (arg & REG_MASK)
        FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, (arg & REG_MASK))));
    return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | VD4(reg));
}
 
static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src, sljit_sw srcw)
{
    op ^= SLJIT_32;
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_32) | FPU_LOAD, TMP_FREG1, src, srcw));
        src = TMP_FREG1;
    }
 
    FAIL_IF(push_inst32(compiler, VCVT_S32_F32 | (op & SLJIT_32) | VD4(TMP_FREG1) | VM4(src)));
 
    if (FAST_IS_REG(dst))
        return push_inst32(compiler, VMOV | (1 << 20) | RT4(dst) | VN4(TMP_FREG1));
 
    /* Store the integer value from a VFP register. */
    return emit_fop_mem(compiler, 0, TMP_FREG1, dst, dstw);
}
 
static sljit_s32 sljit_emit_fop1_conv_f64_from_w(struct sljit_compiler *compiler, sljit_ins ins,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src, sljit_sw srcw)
{
    sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
 
    if (FAST_IS_REG(src))
        FAIL_IF(push_inst32(compiler, VMOV | RT4(src) | VN4(TMP_FREG1)));
    else if (src & SLJIT_MEM) {
        /* Load the integer value into a VFP register. */
        FAIL_IF(emit_fop_mem(compiler, FPU_LOAD, TMP_FREG1, src, srcw));
    }
    else {
        FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)srcw));
        FAIL_IF(push_inst32(compiler, VMOV | RT4(TMP_REG1) | VN4(TMP_FREG1)));
    }
 
    FAIL_IF(push_inst32(compiler, ins | VD4(dst_r) | VM4(TMP_FREG1)));
 
    if (dst & SLJIT_MEM)
        return emit_fop_mem(compiler, (ins & SLJIT_32), TMP_FREG1, dst, dstw);
    return SLJIT_SUCCESS;
}
 
static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src, sljit_sw srcw)
{
    return sljit_emit_fop1_conv_f64_from_w(compiler, VCVT_F32_S32 | (~op & SLJIT_32), dst, dstw, src, srcw);
}
 
static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_uw(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src, sljit_sw srcw)
{
    return sljit_emit_fop1_conv_f64_from_w(compiler, VCVT_F32_U32 | (~op & SLJIT_32), dst, dstw, src, srcw);
}
 
static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2, sljit_sw src2w)
{
    op ^= SLJIT_32;
 
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_32) | FPU_LOAD, TMP_FREG1, src1, src1w));
        src1 = TMP_FREG1;
    }
 
    if (src2 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_32) | FPU_LOAD, TMP_FREG2, src2, src2w));
        src2 = TMP_FREG2;
    }
 
    FAIL_IF(push_inst32(compiler, VCMP_F32 | (op & SLJIT_32) | VD4(src1) | VM4(src2)));
    FAIL_IF(push_inst32(compiler, VMRS));
 
    if (GET_FLAG_TYPE(op) != SLJIT_UNORDERED_OR_EQUAL)
        return SLJIT_SUCCESS;
 
    FAIL_IF(push_inst16(compiler, IT | (0x6 << 4) | 0x8));
    return push_inst16(compiler, CMP /* Rm, Rn = r0 */);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src, sljit_sw srcw)
{
    sljit_s32 dst_r;
 
    CHECK_ERROR();
 
    SLJIT_COMPILE_ASSERT((SLJIT_32 == 0x100), float_transfer_bit_error);
    SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
 
    if (GET_OPCODE(op) != SLJIT_CONV_F64_FROM_F32)
        op ^= SLJIT_32;
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_32) | FPU_LOAD, dst_r, src, srcw));
        src = dst_r;
    }
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV_F64:
        if (src != dst_r) {
            if (!(dst & SLJIT_MEM))
                FAIL_IF(push_inst32(compiler, VMOV_F32 | (op & SLJIT_32) | VD4(dst_r) | VM4(src)));
            else
                dst_r = src;
        }
        break;
    case SLJIT_NEG_F64:
        FAIL_IF(push_inst32(compiler, VNEG_F32 | (op & SLJIT_32) | VD4(dst_r) | VM4(src)));
        break;
    case SLJIT_ABS_F64:
        FAIL_IF(push_inst32(compiler, VABS_F32 | (op & SLJIT_32) | VD4(dst_r) | VM4(src)));
        break;
    case SLJIT_CONV_F64_FROM_F32:
        FAIL_IF(push_inst32(compiler, VCVT_F64_F32 | (op & SLJIT_32) | VD4(dst_r) | VM4(src)));
        op ^= SLJIT_32;
        break;
    }
 
    if (dst & SLJIT_MEM)
        return emit_fop_mem(compiler, (op & SLJIT_32), dst_r, dst, dstw);
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2, sljit_sw src2w)
{
    sljit_s32 dst_r;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
    ADJUST_LOCAL_OFFSET(dst, dstw);
    ADJUST_LOCAL_OFFSET(src1, src1w);
    ADJUST_LOCAL_OFFSET(src2, src2w);
 
    op ^= SLJIT_32;
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_32) | FPU_LOAD, TMP_FREG1, src1, src1w));
        src1 = TMP_FREG1;
    }
    if (src2 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_32) | FPU_LOAD, TMP_FREG2, src2, src2w));
        src2 = TMP_FREG2;
    }
 
    switch (GET_OPCODE(op)) {
    case SLJIT_ADD_F64:
        FAIL_IF(push_inst32(compiler, VADD_F32 | (op & SLJIT_32) | VD4(dst_r) | VN4(src1) | VM4(src2)));
        break;
    case SLJIT_SUB_F64:
        FAIL_IF(push_inst32(compiler, VSUB_F32 | (op & SLJIT_32) | VD4(dst_r) | VN4(src1) | VM4(src2)));
        break;
    case SLJIT_MUL_F64:
        FAIL_IF(push_inst32(compiler, VMUL_F32 | (op & SLJIT_32) | VD4(dst_r) | VN4(src1) | VM4(src2)));
        break;
    case SLJIT_DIV_F64:
        FAIL_IF(push_inst32(compiler, VDIV_F32 | (op & SLJIT_32) | VD4(dst_r) | VN4(src1) | VM4(src2)));
        break;
    case SLJIT_COPYSIGN_F64:
        FAIL_IF(push_inst32(compiler, VMOV | (1 << 20) | VN4(src2) | RT4(TMP_REG1) | ((op & SLJIT_32) ? (1 << 7) : 0)));
        FAIL_IF(push_inst32(compiler, VABS_F32 | (op & SLJIT_32) | VD4(dst_r) | VM4(src1)));
        FAIL_IF(push_inst32(compiler, CMPI_W | RN4(TMP_REG1) | 0));
        FAIL_IF(push_inst16(compiler, IT | (0xb << 4) | 0x8));
        return push_inst32(compiler, VNEG_F32 | (op & SLJIT_32) | VD4(dst_r) | VM4(dst_r));
    }
 
    if (!(dst & SLJIT_MEM))
        return SLJIT_SUCCESS;
    return emit_fop_mem(compiler, (op & SLJIT_32), TMP_FREG1, dst, dstw);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset32(struct sljit_compiler *compiler,
    sljit_s32 freg, sljit_f32 value)
{
#if defined(__ARM_NEON) && __ARM_NEON
    sljit_u32 exp;
    sljit_ins ins;
#endif /* NEON */
    union {
        sljit_u32 imm;
        sljit_f32 value;
    } u;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fset32(compiler, freg, value));
 
    u.value = value;
 
#if defined(__ARM_NEON) && __ARM_NEON
    if ((u.imm << (32 - 19)) == 0) {
        exp = (u.imm >> (23 + 2)) & 0x3f;
 
        if (exp == 0x20 || exp == 0x1f) {
            ins = ((u.imm >> 24) & 0x80) | ((u.imm >> 19) & 0x7f);
            return push_inst32(compiler, (VMOV_F32 ^ (1 << 6)) | ((ins & 0xf0) << 12) | VD4(freg) | (ins & 0xf));
        }
    }
#endif /* NEON */
 
    FAIL_IF(load_immediate(compiler, TMP_REG1, u.imm));
    return push_inst32(compiler, VMOV | VN4(freg) | RT4(TMP_REG1));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset64(struct sljit_compiler *compiler,
    sljit_s32 freg, sljit_f64 value)
{
#if defined(__ARM_NEON) && __ARM_NEON
    sljit_u32 exp;
    sljit_ins ins;
#endif /* NEON */
    union {
        sljit_u32 imm[2];
        sljit_f64 value;
    } u;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fset64(compiler, freg, value));
 
    u.value = value;
 
#if defined(__ARM_NEON) && __ARM_NEON
    if (u.imm[0] == 0 && (u.imm[1] << (64 - 48)) == 0) {
        exp = (u.imm[1] >> ((52 - 32) + 2)) & 0x1ff;
 
        if (exp == 0x100 || exp == 0xff) {
            ins = ((u.imm[1] >> (56 - 32)) & 0x80) | ((u.imm[1] >> (48 - 32)) & 0x7f);
            return push_inst32(compiler, (VMOV_F32 ^ (1 << 6)) | (1 << 8) | ((ins & 0xf0) << 12) | VD4(freg) | (ins & 0xf));
        }
    }
#endif /* NEON */
 
    FAIL_IF(load_immediate(compiler, TMP_REG1, u.imm[0]));
    if (u.imm[0] == u.imm[1])
        return push_inst32(compiler, VMOV2 | RN4(TMP_REG1) | RT4(TMP_REG1) | VM4(freg));
 
    FAIL_IF(load_immediate(compiler, TMP_REG2, u.imm[1]));
    return push_inst32(compiler, VMOV2 | RN4(TMP_REG2) | RT4(TMP_REG1) | VM4(freg));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fcopy(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 freg, sljit_s32 reg)
{
    sljit_s32 reg2;
    sljit_ins inst;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fcopy(compiler, op, freg, reg));
 
    if (reg & REG_PAIR_MASK) {
        reg2 = REG_PAIR_SECOND(reg);
        reg = REG_PAIR_FIRST(reg);
 
        inst = VMOV2 | RN4(reg) | RT4(reg2) | VM4(freg);
    } else {
        inst = VMOV | VN4(freg) | RT4(reg);
 
        if (!(op & SLJIT_32))
            inst |= 1 << 7;
    }
 
    if (GET_OPCODE(op) == SLJIT_COPY_FROM_F64)
        inst |= 1 << 20;
 
    return push_inst32(compiler, inst);
}
 
/* --------------------------------------------------------------------- */
/*  Conditional instructions                                             */
/* --------------------------------------------------------------------- */
 
static sljit_uw get_cc(struct sljit_compiler *compiler, sljit_s32 type)
{
    switch (type) {
    case SLJIT_EQUAL:
    case SLJIT_ATOMIC_STORED:
    case SLJIT_F_EQUAL:
    case SLJIT_ORDERED_EQUAL:
    case SLJIT_UNORDERED_OR_EQUAL:
        return 0x0;
 
    case SLJIT_NOT_EQUAL:
    case SLJIT_ATOMIC_NOT_STORED:
    case SLJIT_F_NOT_EQUAL:
    case SLJIT_UNORDERED_OR_NOT_EQUAL:
    case SLJIT_ORDERED_NOT_EQUAL:
        return 0x1;
 
    case SLJIT_CARRY:
        if (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_ADD)
            return 0x2;
        /* fallthrough */
 
    case SLJIT_LESS:
        return 0x3;
 
    case SLJIT_NOT_CARRY:
        if (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_ADD)
            return 0x3;
        /* fallthrough */
 
    case SLJIT_GREATER_EQUAL:
        return 0x2;
 
    case SLJIT_GREATER:
    case SLJIT_UNORDERED_OR_GREATER:
        return 0x8;
 
    case SLJIT_LESS_EQUAL:
    case SLJIT_F_LESS_EQUAL:
    case SLJIT_ORDERED_LESS_EQUAL:
        return 0x9;
 
    case SLJIT_SIG_LESS:
    case SLJIT_UNORDERED_OR_LESS:
        return 0xb;
 
    case SLJIT_SIG_GREATER_EQUAL:
    case SLJIT_F_GREATER_EQUAL:
    case SLJIT_ORDERED_GREATER_EQUAL:
        return 0xa;
 
    case SLJIT_SIG_GREATER:
    case SLJIT_F_GREATER:
    case SLJIT_ORDERED_GREATER:
        return 0xc;
 
    case SLJIT_SIG_LESS_EQUAL:
    case SLJIT_UNORDERED_OR_LESS_EQUAL:
        return 0xd;
 
    case SLJIT_OVERFLOW:
        if (!(compiler->status_flags_state & (SLJIT_CURRENT_FLAGS_ADD | SLJIT_CURRENT_FLAGS_SUB)))
            return 0x1;
        /* fallthrough */
 
    case SLJIT_UNORDERED:
        return 0x6;
 
    case SLJIT_NOT_OVERFLOW:
        if (!(compiler->status_flags_state & (SLJIT_CURRENT_FLAGS_ADD | SLJIT_CURRENT_FLAGS_SUB)))
            return 0x0;
        /* fallthrough */
 
    case SLJIT_ORDERED:
        return 0x7;
 
    case SLJIT_F_LESS:
    case SLJIT_ORDERED_LESS:
        return 0x4;
 
    case SLJIT_UNORDERED_OR_GREATER_EQUAL:
        return 0x5;
 
    default: /* SLJIT_JUMP */
        SLJIT_UNREACHABLE();
        return 0xe;
    }
}
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
{
    struct sljit_label *label;
 
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_emit_label(compiler));
 
    if (compiler->last_label && compiler->last_label->size == compiler->size)
        return compiler->last_label;
 
    label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
    PTR_FAIL_IF(!label);
    set_label(label, compiler);
    return label;
}
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
{
    struct sljit_jump *jump;
    sljit_ins cc;
 
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_emit_jump(compiler, type));
 
    jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
    PTR_FAIL_IF(!jump);
    set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
    type &= 0xff;
 
    if (type < SLJIT_JUMP) {
        jump->flags |= IS_COND;
        cc = get_cc(compiler, type);
        jump->flags |= cc << 8;
        PTR_FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
    }
 
    jump->addr = compiler->size;
    if (type <= SLJIT_JUMP)
        PTR_FAIL_IF(push_inst16(compiler, BX | RN3(TMP_REG1)));
    else {
        jump->flags |= IS_BL;
        PTR_FAIL_IF(push_inst16(compiler, BLX | RN3(TMP_REG1)));
    }
 
    /* Maximum number of instructions required for generating a constant. */
    compiler->size += JUMP_MAX_SIZE - 1;
    return jump;
}
 
#ifdef __SOFTFP__
 
static sljit_s32 softfloat_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src, sljit_u32 *extra_space)
{
    sljit_u32 is_tail_call = *extra_space & SLJIT_CALL_RETURN;
    sljit_u32 offset = 0;
    sljit_u32 word_arg_offset = 0;
    sljit_u32 float_arg_count = 0;
    sljit_s32 types = 0;
    sljit_u32 src_offset = 4 * sizeof(sljit_sw);
    sljit_u8 offsets[4];
    sljit_u8 *offset_ptr = offsets;
 
    if (src && FAST_IS_REG(*src))
        src_offset = (sljit_u32)reg_map[*src] * sizeof(sljit_sw);
 
    arg_types >>= SLJIT_ARG_SHIFT;
 
    while (arg_types) {
        types = (types << SLJIT_ARG_SHIFT) | (arg_types & SLJIT_ARG_MASK);
 
        switch (arg_types & SLJIT_ARG_MASK) {
        case SLJIT_ARG_TYPE_F64:
            if (offset & 0x7)
                offset += sizeof(sljit_sw);
            *offset_ptr++ = (sljit_u8)offset;
            offset += sizeof(sljit_f64);
            float_arg_count++;
            break;
        case SLJIT_ARG_TYPE_F32:
            *offset_ptr++ = (sljit_u8)offset;
            offset += sizeof(sljit_f32);
            float_arg_count++;
            break;
        default:
            *offset_ptr++ = (sljit_u8)offset;
            offset += sizeof(sljit_sw);
            word_arg_offset += sizeof(sljit_sw);
            break;
        }
 
        arg_types >>= SLJIT_ARG_SHIFT;
    }
 
    if (offset > 4 * sizeof(sljit_sw) && (!is_tail_call || offset > compiler->args_size)) {
        /* Keep lr register on the stack. */
        if (is_tail_call)
            offset += sizeof(sljit_sw);
 
        offset = ((offset - 4 * sizeof(sljit_sw)) + 0x7) & ~(sljit_uw)0x7;
 
        *extra_space = offset;
 
        if (is_tail_call)
            FAIL_IF(emit_stack_frame_release(compiler, (sljit_s32)offset));
        else
            FAIL_IF(push_inst16(compiler, SUB_SP_I | (offset >> 2)));
    } else {
        if (is_tail_call)
            FAIL_IF(emit_stack_frame_release(compiler, -1));
        *extra_space = 0;
    }
 
    SLJIT_ASSERT(reg_map[TMP_REG1] == 12);
 
    /* Process arguments in reversed direction. */
    while (types) {
        switch (types & SLJIT_ARG_MASK) {
        case SLJIT_ARG_TYPE_F64:
            float_arg_count--;
            offset = *(--offset_ptr);
 
            SLJIT_ASSERT((offset & 0x7) == 0);
 
            if (offset < 4 * sizeof(sljit_sw)) {
                if (src_offset == offset || src_offset == offset + sizeof(sljit_sw)) {
                    FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
                    *src = TMP_REG1;
                }
                FAIL_IF(push_inst32(compiler, VMOV2 | 0x100000 | (offset << 10) | ((offset + sizeof(sljit_sw)) << 14) | float_arg_count));
            } else
                FAIL_IF(push_inst32(compiler, VSTR_F32 | 0x800100 | RN4(SLJIT_SP)
                        | (float_arg_count << 12) | ((offset - 4 * sizeof(sljit_sw)) >> 2)));
            break;
        case SLJIT_ARG_TYPE_F32:
            float_arg_count--;
            offset = *(--offset_ptr);
 
            if (offset < 4 * sizeof(sljit_sw)) {
                if (src_offset == offset) {
                    FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
                    *src = TMP_REG1;
                }
                FAIL_IF(push_inst32(compiler, VMOV | 0x100000 | (float_arg_count << 16) | (offset << 10)));
            } else
                FAIL_IF(push_inst32(compiler, VSTR_F32 | 0x800000 | RN4(SLJIT_SP)
                        | (float_arg_count << 12) | ((offset - 4 * sizeof(sljit_sw)) >> 2)));
            break;
        default:
            word_arg_offset -= sizeof(sljit_sw);
            offset = *(--offset_ptr);
 
            SLJIT_ASSERT(offset >= word_arg_offset);
 
            if (offset != word_arg_offset) {
                if (offset < 4 * sizeof(sljit_sw)) {
                    if (src_offset == offset) {
                        FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
                        *src = TMP_REG1;
                    }
                    else if (src_offset == word_arg_offset) {
                        *src = (sljit_s32)(1 + (offset >> 2));
                        src_offset = offset;
                    }
                    FAIL_IF(push_inst16(compiler, MOV | (offset >> 2) | (word_arg_offset << 1)));
                } else
                    FAIL_IF(push_inst16(compiler, STR_SP | (word_arg_offset << 6) | ((offset - 4 * sizeof(sljit_sw)) >> 2)));
            }
            break;
        }
 
        types >>= SLJIT_ARG_SHIFT;
    }
 
    return SLJIT_SUCCESS;
}
 
static sljit_s32 softfloat_post_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
{
    if ((arg_types & SLJIT_ARG_MASK) == SLJIT_ARG_TYPE_F64)
        FAIL_IF(push_inst32(compiler, VMOV2 | (1 << 16) | (0 << 12) | 0));
    if ((arg_types & SLJIT_ARG_MASK) == SLJIT_ARG_TYPE_F32)
        FAIL_IF(push_inst32(compiler, VMOV | (0 << 16) | (0 << 12)));
 
    return SLJIT_SUCCESS;
}
 
#else
 
static sljit_s32 hardfloat_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
{
    sljit_u32 offset = SLJIT_FR0;
    sljit_u32 new_offset = SLJIT_FR0;
    sljit_u32 f32_offset = 0;
 
    /* Remove return value. */
    arg_types >>= SLJIT_ARG_SHIFT;
 
    while (arg_types) {
        switch (arg_types & SLJIT_ARG_MASK) {
        case SLJIT_ARG_TYPE_F64:
            if (offset != new_offset)
                FAIL_IF(push_inst32(compiler, VMOV_F32 | SLJIT_32 | VD4(new_offset) | VM4(offset)));
 
            new_offset++;
            offset++;
            break;
        case SLJIT_ARG_TYPE_F32:
            if (f32_offset != 0) {
                FAIL_IF(push_inst32(compiler, VMOV_F32 | 0x400000 | VD4(f32_offset) | VM4(offset)));
                f32_offset = 0;
            } else {
                if (offset != new_offset)
                    FAIL_IF(push_inst32(compiler, VMOV_F32 | 0x400000 | VD4(new_offset) | VM4(offset)));
                f32_offset = new_offset;
                new_offset++;
            }
            offset++;
            break;
        }
        arg_types >>= SLJIT_ARG_SHIFT;
    }
 
    return SLJIT_SUCCESS;
}
 
#endif
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 arg_types)
{
#ifdef __SOFTFP__
    struct sljit_jump *jump;
    sljit_u32 extra_space = (sljit_u32)type;
#endif
 
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
 
#ifdef __SOFTFP__
    if ((type & 0xff) != SLJIT_CALL_REG_ARG) {
        PTR_FAIL_IF(softfloat_call_with_args(compiler, arg_types, NULL, &extra_space));
        SLJIT_ASSERT((extra_space & 0x7) == 0);
 
        if ((type & SLJIT_CALL_RETURN) && extra_space == 0)
            type = SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP);
 
        SLJIT_SKIP_CHECKS(compiler);
        jump = sljit_emit_jump(compiler, type);
        PTR_FAIL_IF(jump == NULL);
 
        if (extra_space > 0) {
            if (type & SLJIT_CALL_RETURN)
                PTR_FAIL_IF(push_inst32(compiler, LDR | RT4(TMP_REG2)
                    | RN4(SLJIT_SP) | (extra_space - sizeof(sljit_sw))));
 
            PTR_FAIL_IF(push_inst16(compiler, ADD_SP_I | (extra_space >> 2)));
 
            if (type & SLJIT_CALL_RETURN) {
                PTR_FAIL_IF(push_inst16(compiler, BX | RN3(TMP_REG2)));
                return jump;
            }
        }
 
        SLJIT_ASSERT(!(type & SLJIT_CALL_RETURN));
        PTR_FAIL_IF(softfloat_post_call_with_args(compiler, arg_types));
        return jump;
    }
#endif /* __SOFTFP__ */
 
    if (type & SLJIT_CALL_RETURN) {
        /* ldmia sp!, {..., lr} */
        PTR_FAIL_IF(emit_stack_frame_release(compiler, -1));
        type = SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP);
    }
 
#ifndef __SOFTFP__
    if ((type & 0xff) != SLJIT_CALL_REG_ARG)
        PTR_FAIL_IF(hardfloat_call_with_args(compiler, arg_types));
#endif /* !__SOFTFP__ */
 
    SLJIT_SKIP_CHECKS(compiler);
    return sljit_emit_jump(compiler, type);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
{
    struct sljit_jump *jump;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
    ADJUST_LOCAL_OFFSET(src, srcw);
 
    SLJIT_ASSERT(reg_map[TMP_REG1] != 14);
 
    if (src != SLJIT_IMM) {
        if (FAST_IS_REG(src)) {
            SLJIT_ASSERT(reg_map[src] != 14);
            return push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(src));
        }
 
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, src, srcw, TMP_REG1));
        if (type >= SLJIT_FAST_CALL)
            return push_inst16(compiler, BLX | RN3(TMP_REG1));
    }
 
    /* These jumps are converted to jump/call instructions when possible. */
    jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
    FAIL_IF(!jump);
    set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_BL : 0));
    jump->u.target = (sljit_uw)srcw;
 
    jump->addr = compiler->size;
    /* Maximum number of instructions required for generating a constant. */
    compiler->size += JUMP_MAX_SIZE - 1;
    return push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(TMP_REG1));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 arg_types,
    sljit_s32 src, sljit_sw srcw)
{
#ifdef __SOFTFP__
    sljit_u32 extra_space = (sljit_u32)type;
#endif
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw));
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
        src = TMP_REG1;
    }
 
    if ((type & SLJIT_CALL_RETURN) && (src >= SLJIT_FIRST_SAVED_REG && src <= (SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options)))) {
        FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG1, src)));
        src = TMP_REG1;
    }
 
#ifdef __SOFTFP__
    if ((type & 0xff) != SLJIT_CALL_REG_ARG) {
        FAIL_IF(softfloat_call_with_args(compiler, arg_types, &src, &extra_space));
        SLJIT_ASSERT((extra_space & 0x7) == 0);
 
        if ((type & SLJIT_CALL_RETURN) && extra_space == 0)
            type = SLJIT_JUMP;
 
        SLJIT_SKIP_CHECKS(compiler);
        FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
 
        if (extra_space > 0) {
            if (type & SLJIT_CALL_RETURN)
                FAIL_IF(push_inst32(compiler, LDR | RT4(TMP_REG2)
                    | RN4(SLJIT_SP) | (extra_space - sizeof(sljit_sw))));
 
            FAIL_IF(push_inst16(compiler, ADD_SP_I | (extra_space >> 2)));
 
            if (type & SLJIT_CALL_RETURN)
                return push_inst16(compiler, BX | RN3(TMP_REG2));
        }
 
        SLJIT_ASSERT(!(type & SLJIT_CALL_RETURN));
        return softfloat_post_call_with_args(compiler, arg_types);
    }
#endif /* __SOFTFP__ */
 
    if (type & SLJIT_CALL_RETURN) {
        /* ldmia sp!, {..., lr} */
        FAIL_IF(emit_stack_frame_release(compiler, -1));
        type = SLJIT_JUMP;
    }
 
#ifndef __SOFTFP__
    if ((type & 0xff) != SLJIT_CALL_REG_ARG)
        FAIL_IF(hardfloat_call_with_args(compiler, arg_types));
#endif /* !__SOFTFP__ */
 
    SLJIT_SKIP_CHECKS(compiler);
    return sljit_emit_ijump(compiler, type, src, srcw);
}
 
#ifdef __SOFTFP__
 
static SLJIT_INLINE sljit_s32 emit_fmov_before_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
{
    if (compiler->options & SLJIT_ENTER_REG_ARG) {
        if (src == SLJIT_FR0)
            return SLJIT_SUCCESS;
 
        SLJIT_SKIP_CHECKS(compiler);
        return sljit_emit_fop1(compiler, op, SLJIT_RETURN_FREG, 0, src, srcw);
    }
 
    if (FAST_IS_REG(src)) {
        if (op & SLJIT_32)
            return push_inst32(compiler, VMOV | (1 << 20) | VN4(src) | RT4(SLJIT_R0));
        return push_inst32(compiler, VMOV2 | (1 << 20) | VM4(src) | RT4(SLJIT_R0) | RN4(SLJIT_R1));
    }
 
    SLJIT_SKIP_CHECKS(compiler);
 
    if (op & SLJIT_32)
        return sljit_emit_op1(compiler, SLJIT_MOV, SLJIT_R0, 0, src, srcw);
    return sljit_emit_mem(compiler, SLJIT_MOV, SLJIT_REG_PAIR(SLJIT_R0, SLJIT_R1), src, srcw);
}
 
#endif /* __SOFTFP__ */
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 type)
{
    sljit_s32 dst_r, flags = GET_ALL_FLAGS(op);
    sljit_ins cc;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    op = GET_OPCODE(op);
    cc = get_cc(compiler, type);
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
 
    if (op < SLJIT_ADD) {
        FAIL_IF(push_inst16(compiler, IT | (cc << 4) | (((cc & 0x1) ^ 0x1) << 3) | 0x4));
        if (reg_map[dst_r] > 7) {
            FAIL_IF(push_inst32(compiler, MOV_WI | RD4(dst_r) | 1));
            FAIL_IF(push_inst32(compiler, MOV_WI | RD4(dst_r) | 0));
        } else {
            /* The movsi (immediate) instruction does not set flags in IT block. */
            FAIL_IF(push_inst16(compiler, MOVSI | RDN3(dst_r) | 1));
            FAIL_IF(push_inst16(compiler, MOVSI | RDN3(dst_r) | 0));
        }
        if (!(dst & SLJIT_MEM))
            return SLJIT_SUCCESS;
        return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG1, dst, dstw, TMP_REG2);
    }
 
    if (dst & SLJIT_MEM)
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, dst, dstw, TMP_REG2));
 
    if (op == SLJIT_AND) {
        FAIL_IF(push_inst16(compiler, IT | (cc << 4) | (((cc & 0x1) ^ 0x1) << 3) | 0x4));
        FAIL_IF(push_inst32(compiler, ANDI | RN4(dst_r) | RD4(dst_r) | 1));
        FAIL_IF(push_inst32(compiler, ANDI | RN4(dst_r) | RD4(dst_r) | 0));
    }
    else {
        FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
        FAIL_IF(push_inst32(compiler, ((op == SLJIT_OR) ? ORRI : EORI) | RN4(dst_r) | RD4(dst_r) | 1));
    }
 
    if (dst & SLJIT_MEM)
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG1, dst, dstw, TMP_REG2));
 
    if (!(flags & SLJIT_SET_Z))
        return SLJIT_SUCCESS;
 
    /* The condition must always be set, even if the ORR/EORI is not executed above. */
    return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(TMP_REG1) | RM4(dst_r));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_select(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 dst_reg,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2_reg)
{
    sljit_uw cc, tmp;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_select(compiler, type, dst_reg, src1, src1w, src2_reg));
 
    ADJUST_LOCAL_OFFSET(src1, src1w);
 
    if (src2_reg != dst_reg && src1 == dst_reg) {
        src1 = src2_reg;
        src1w = 0;
        src2_reg = dst_reg;
        type ^= 0x1;
    }
 
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, (src2_reg != dst_reg) ? dst_reg : TMP_REG1, src1, src1w, TMP_REG1));
 
        if (src2_reg != dst_reg) {
            src1 = src2_reg;
            src1w = 0;
            type ^= 0x1;
        } else {
            src1 = TMP_REG1;
            src1w = 0;
        }
    } else if (dst_reg != src2_reg)
        FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(dst_reg, src2_reg)));
 
    cc = get_cc(compiler, type & ~SLJIT_32);
 
    if (src1 != SLJIT_IMM) {
        FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
        return push_inst16(compiler, MOV | SET_REGS44(dst_reg, src1));
    }
 
    tmp = (sljit_uw)src1w;
 
    if (tmp < 0x10000) {
        /* set low 16 bits, set hi 16 bits to 0. */
        FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
        return push_inst32(compiler, MOVW | RD4(dst_reg)
            | COPY_BITS(tmp, 12, 16, 4) | COPY_BITS(tmp, 11, 26, 1) | COPY_BITS(tmp, 8, 12, 3) | (tmp & 0xff));
    }
 
    tmp = get_imm((sljit_uw)src1w);
    if (tmp != INVALID_IMM) {
        FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
        return push_inst32(compiler, MOV_WI | RD4(dst_reg) | tmp);
    }
 
    tmp = get_imm(~(sljit_uw)src1w);
    if (tmp != INVALID_IMM) {
        FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
        return push_inst32(compiler, MVN_WI | RD4(dst_reg) | tmp);
    }
 
    FAIL_IF(push_inst16(compiler, IT | (cc << 4) | ((cc & 0x1) << 3) | 0x4));
 
    tmp = (sljit_uw)src1w;
    FAIL_IF(push_inst32(compiler, MOVW | RD4(dst_reg)
        | COPY_BITS(tmp, 12, 16, 4) | COPY_BITS(tmp, 11, 26, 1) | COPY_BITS(tmp, 8, 12, 3) | (tmp & 0xff)));
    return push_inst32(compiler, MOVT | RD4(dst_reg)
        | COPY_BITS(tmp, 12 + 16, 16, 4) | COPY_BITS(tmp, 11 + 16, 26, 1) | COPY_BITS(tmp, 8 + 16, 12, 3) | ((tmp & 0xff0000) >> 16));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fselect(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 dst_freg,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2_freg)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_fselect(compiler, type, dst_freg, src1, src1w, src2_freg));
 
    ADJUST_LOCAL_OFFSET(src1, src1w);
 
    type ^= SLJIT_32;
 
    if (dst_freg != src2_freg) {
        if (dst_freg == src1) {
            src1 = src2_freg;
            src1w = 0;
            type ^= 0x1;
        } else
            FAIL_IF(push_inst32(compiler, VMOV_F32 | (type & SLJIT_32) | VD4(dst_freg) | VM4(src2_freg)));
    }
 
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (type & SLJIT_32) | FPU_LOAD, TMP_FREG2, src1, src1w));
        src1 = TMP_FREG2;
    }
 
    FAIL_IF(push_inst16(compiler, IT | (get_cc(compiler, type & ~SLJIT_32) << 4) | 0x8));
    return push_inst32(compiler, VMOV_F32 | (type & SLJIT_32) | VD4(dst_freg) | VM4(src1));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_mem(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 reg,
    sljit_s32 mem, sljit_sw memw)
{
    sljit_s32 flags;
    sljit_uw imm, tmp;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw));
 
    if (!(reg & REG_PAIR_MASK))
        return sljit_emit_mem_unaligned(compiler, type, reg, mem, memw);
 
    if (type & (SLJIT_MEM_UNALIGNED | SLJIT_MEM_ALIGNED_16 | SLJIT_MEM_ALIGNED_32)) {
        if ((mem & REG_MASK) == 0) {
            if ((memw & 0xfff) >= (0x1000 - SSIZE_OF(sw))) {
                imm = get_imm((sljit_uw)((memw + 0x1000) & ~0xfff));
 
                if (imm != INVALID_IMM)
                    memw = (memw & 0xfff) - 0x1000;
            } else {
                imm = get_imm((sljit_uw)(memw & ~0xfff));
 
                if (imm != INVALID_IMM)
                    memw &= 0xfff;
            }
 
            if (imm == INVALID_IMM) {
                FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)memw));
                memw = 0;
            } else
                FAIL_IF(push_inst32(compiler, MOV_WI | RD4(TMP_REG1) | imm));
 
            mem = SLJIT_MEM1(TMP_REG1);
        } else if (mem & OFFS_REG_MASK) {
            FAIL_IF(push_inst32(compiler, ADD_W | RD4(TMP_REG1) | RN4(mem & REG_MASK) | RM4(OFFS_REG(mem)) | ((sljit_uw)(memw & 0x3) << 6)));
            memw = 0;
            mem = SLJIT_MEM1(TMP_REG1);
        } else if (memw < -0xff) {
            /* Zero value can be included in the first case. */
            if ((-memw & 0xfff) <= SSIZE_OF(sw))
                tmp = (sljit_uw)((-memw + 0x7ff) & ~0x7ff);
            else
                tmp = (sljit_uw)((-memw + 0xfff) & ~0xfff);
 
            SLJIT_ASSERT(tmp >= (sljit_uw)-memw);
            imm = get_imm(tmp);
 
            if (imm != INVALID_IMM) {
                FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(mem & REG_MASK) | imm));
                memw += (sljit_sw)tmp;
                SLJIT_ASSERT(memw >= 0 && memw <= 0xfff - SSIZE_OF(sw));
            } else {
                FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)memw));
                FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, mem & REG_MASK)));
                memw = 0;
            }
 
            mem = SLJIT_MEM1(TMP_REG1);
        } else if (memw >= (0x1000 - SSIZE_OF(sw))) {
            if ((memw & 0xfff) >= (0x1000 - SSIZE_OF(sw))) {
                imm = get_imm((sljit_uw)((memw + 0x1000) & ~0xfff));
 
                if (imm != INVALID_IMM)
                    memw = (memw & 0xfff) - 0x1000;
            } else {
                imm = get_imm((sljit_uw)(memw & ~0xfff));
 
                if (imm != INVALID_IMM)
                    memw &= 0xfff;
            }
 
            if (imm != INVALID_IMM) {
                SLJIT_ASSERT(memw >= -0xff && memw <= 0xfff);
                FAIL_IF(push_inst32(compiler, ADD_WI | RD4(TMP_REG1) | RN4(mem & REG_MASK) | imm));
            } else {
                FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)memw));
                FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, mem & REG_MASK)));
                memw = 0;
            }
 
            mem = SLJIT_MEM1(TMP_REG1);
        }
 
        flags = WORD_SIZE;
 
        SLJIT_ASSERT(memw <= 0xfff - SSIZE_OF(sw) && memw >= -0xff);
 
        if (type & SLJIT_MEM_STORE) {
            flags |= STORE;
        } else if (REG_PAIR_FIRST(reg) == (mem & REG_MASK)) {
            FAIL_IF(emit_op_mem(compiler, WORD_SIZE, REG_PAIR_SECOND(reg), mem, memw + SSIZE_OF(sw), TMP_REG2));
            return emit_op_mem(compiler, WORD_SIZE, REG_PAIR_FIRST(reg), mem, memw, TMP_REG2);
        }
 
        FAIL_IF(emit_op_mem(compiler, flags, REG_PAIR_FIRST(reg), mem, memw, TMP_REG2));
        return emit_op_mem(compiler, flags, REG_PAIR_SECOND(reg), mem, memw + SSIZE_OF(sw), TMP_REG2);
    }
 
    flags = 1 << 23;
 
    if ((mem & REG_MASK) == 0) {
        tmp = (sljit_uw)(memw & 0x7fc);
        imm = get_imm((sljit_uw)((memw + (tmp <= 0x400 ? 0 : 0x400)) & ~0x3fc));
 
        if (imm == INVALID_IMM) {
            FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)memw));
            memw = 0;
        } else {
            FAIL_IF(push_inst32(compiler, MOV_WI | RD4(TMP_REG1) | imm));
            memw = (memw & 0x3fc) >> 2;
 
            if (tmp > 0x400) {
                memw = 0x100 - memw;
                flags = 0;
            }
 
            SLJIT_ASSERT(memw >= 0 && memw <= 0xff);
        }
 
        mem = SLJIT_MEM1(TMP_REG1);
    } else if (mem & OFFS_REG_MASK) {
        FAIL_IF(push_inst32(compiler, ADD_W | RD4(TMP_REG1) | RN4(mem & REG_MASK) | RM4(OFFS_REG(mem)) | ((sljit_uw)(memw & 0x3) << 6)));
        memw = 0;
        mem = SLJIT_MEM1(TMP_REG1);
    } else if (memw < 0) {
        if ((-memw & ~0x3fc) == 0) {
            flags = 0;
            memw = -memw >> 2;
        } else {
            tmp = (sljit_uw)(-memw & 0x7fc);
            imm = get_imm((sljit_uw)((-memw + (tmp <= 0x400 ? 0 : 0x400)) & ~0x3fc));
 
            if (imm != INVALID_IMM) {
                FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(mem & REG_MASK) | imm));
                memw = (-memw & 0x3fc) >> 2;
 
                if (tmp <= 0x400)
                    flags = 0;
                else
                    memw = 0x100 - memw;
            } else {
                FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)memw));
                FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, mem & REG_MASK)));
                memw = 0;
            }
 
            mem = SLJIT_MEM1(TMP_REG1);
        }
    } else if ((memw & ~0x3fc) != 0) {
        tmp = (sljit_uw)(memw & 0x7fc);
        imm = get_imm((sljit_uw)((memw + (tmp <= 0x400 ? 0 : 0x400)) & ~0x3fc));
 
        if (imm != INVALID_IMM) {
            FAIL_IF(push_inst32(compiler, ADD_WI | RD4(TMP_REG1) | RN4(mem & REG_MASK) | imm));
            memw = (memw & 0x3fc) >> 2;
 
            if (tmp > 0x400) {
                memw = 0x100 - memw;
                flags = 0;
            }
        } else {
            FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)memw));
            FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, mem & REG_MASK)));
            memw = 0;
        }
 
        mem = SLJIT_MEM1(TMP_REG1);
    } else
        memw >>= 2;
 
    SLJIT_ASSERT(memw >= 0 && memw <= 0xff);
    return push_inst32(compiler, ((type & SLJIT_MEM_STORE) ? STRD : LDRD) | (sljit_ins)flags | RN4(mem & REG_MASK) | RT4(REG_PAIR_FIRST(reg)) | RD4(REG_PAIR_SECOND(reg)) | (sljit_ins)memw);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_mem_update(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 reg,
    sljit_s32 mem, sljit_sw memw)
{
    sljit_s32 flags;
    sljit_ins inst;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_mem_update(compiler, type, reg, mem, memw));
 
    if ((mem & OFFS_REG_MASK) || (memw > 255 || memw < -255))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_MEM_SUPP)
        return SLJIT_SUCCESS;
 
    switch (type & 0xff) {
    case SLJIT_MOV:
    case SLJIT_MOV_U32:
    case SLJIT_MOV_S32:
    case SLJIT_MOV32:
    case SLJIT_MOV_P:
        flags = WORD_SIZE;
        break;
    case SLJIT_MOV_U8:
        flags = BYTE_SIZE;
        break;
    case SLJIT_MOV_S8:
        flags = BYTE_SIZE | SIGNED;
        break;
    case SLJIT_MOV_U16:
        flags = HALF_SIZE;
        break;
    case SLJIT_MOV_S16:
        flags = HALF_SIZE | SIGNED;
        break;
    default:
        SLJIT_UNREACHABLE();
        flags = WORD_SIZE;
        break;
    }
 
    if (type & SLJIT_MEM_STORE)
        flags |= STORE;
 
    inst = sljit_mem32[flags] | 0x900;
 
    if (!(type & SLJIT_MEM_POST))
        inst |= 0x400;
 
    if (memw >= 0)
        inst |= 0x200;
    else
        memw = -memw;
 
    return push_inst32(compiler, inst | RT4(reg) | RN4(mem & REG_MASK) | (sljit_ins)memw);
}
 
static sljit_s32 update_mem_addr(struct sljit_compiler *compiler, sljit_s32 *mem, sljit_sw *memw, sljit_s32 max_offset)
{
    sljit_s32 arg = *mem;
    sljit_sw argw = *memw;
    sljit_uw imm;
 
    *mem = TMP_REG1;
 
    if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
        *memw = 0;
        return push_inst32(compiler, ADD_W | RD4(TMP_REG1) | RN4(arg & REG_MASK) | RM4(OFFS_REG(arg)) | ((sljit_uw)(argw & 0x3) << 6));
    }
 
    arg &= REG_MASK;
 
    if (arg) {
        if (argw <= max_offset && argw >= -0xff) {
            *mem = arg;
            return SLJIT_SUCCESS;
        }
 
        if (argw < 0) {
            imm = get_imm((sljit_uw)(-argw & ~0xff));
 
            if (imm) {
                *memw = -(-argw & 0xff);
                return push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(arg) | imm);
            }
        } else if ((argw & 0xfff) <= max_offset) {
            imm = get_imm((sljit_uw)(argw & ~0xfff));
 
            if (imm) {
                *memw = argw & 0xfff;
                return push_inst32(compiler, ADD_WI | RD4(TMP_REG1) | RN4(arg) | imm);
            }
        } else {
            imm = get_imm((sljit_uw)((argw | 0xfff) + 1));
 
            if (imm) {
                *memw = (argw & 0xfff) - 0x1000;
                return push_inst32(compiler, ADD_WI | RD4(TMP_REG1) | RN4(arg) | imm);
            }
        }
    }
 
    imm = (sljit_uw)(argw & ~0xfff);
 
    if ((argw & 0xfff) > max_offset) {
        imm += 0x1000;
        *memw = (argw & 0xfff) - 0x1000;
    } else
        *memw = argw & 0xfff;
 
    FAIL_IF(load_immediate(compiler, TMP_REG1, imm));
 
    if (arg == 0)
        return SLJIT_SUCCESS;
 
    return push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, arg));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fmem(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 freg,
    sljit_s32 mem, sljit_sw memw)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_fmem(compiler, type, freg, mem, memw));
 
    if (type & SLJIT_MEM_ALIGNED_32)
        return emit_fop_mem(compiler, ((type ^ SLJIT_32) & SLJIT_32) | ((type & SLJIT_MEM_STORE) ? 0 : FPU_LOAD), freg, mem, memw);
 
    if (type & SLJIT_MEM_STORE) {
        FAIL_IF(push_inst32(compiler, VMOV | (1 << 20) | VN4(freg) | RT4(TMP_REG2)));
 
        if (type & SLJIT_32)
            return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG2, mem, memw, TMP_REG1);
 
        FAIL_IF(update_mem_addr(compiler, &mem, &memw, 0xfff - 4));
        mem |= SLJIT_MEM;
 
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG2, mem, memw, TMP_REG1));
        FAIL_IF(push_inst32(compiler, VMOV | (1 << 20) | VN4(freg) | 0x80 | RT4(TMP_REG2)));
        return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG2, mem, memw + 4, TMP_REG1);
    }
 
    if (type & SLJIT_32) {
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, mem, memw, TMP_REG1));
        return push_inst32(compiler, VMOV | VN4(freg) | RT4(TMP_REG2));
    }
 
    FAIL_IF(update_mem_addr(compiler, &mem, &memw, 0xfff - 4));
    mem |= SLJIT_MEM;
 
    FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, mem, memw, TMP_REG1));
    FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, mem, memw + 4, TMP_REG1));
    return push_inst32(compiler, VMOV2 | VM4(freg) | RT4(TMP_REG2) | RN4(TMP_REG1));
}
 
static sljit_s32 sljit_emit_simd_mem_offset(struct sljit_compiler *compiler, sljit_s32 *mem_ptr, sljit_sw memw)
{
    sljit_uw imm;
    sljit_s32 mem = *mem_ptr;
 
    if (SLJIT_UNLIKELY(mem & OFFS_REG_MASK)) {
        *mem_ptr = TMP_REG1;
        return push_inst32(compiler, ADD_W | RD4(TMP_REG1) | RN4(mem & REG_MASK) | RM4(OFFS_REG(mem)) | ((sljit_uw)(memw & 0x3) << 6));
    }
 
    if (SLJIT_UNLIKELY(!(mem & REG_MASK))) {
        *mem_ptr = TMP_REG1;
        return load_immediate(compiler, TMP_REG1, (sljit_uw)memw);
    }
 
    mem &= REG_MASK;
 
    if (memw == 0) {
        *mem_ptr = mem;
        return SLJIT_SUCCESS;
    }
 
    *mem_ptr = TMP_REG1;
    imm = get_imm((sljit_uw)(memw < 0 ? -memw : memw));
 
    if (imm != INVALID_IMM)
        return push_inst32(compiler, ((memw < 0) ? SUB_WI : ADD_WI) | RD4(TMP_REG1) | RN4(mem) | imm);
 
    FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)memw));
    return push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, mem));
}
 
static SLJIT_INLINE sljit_s32 simd_get_quad_reg_index(sljit_s32 freg)
{
    freg += freg & 0x1;
 
    SLJIT_ASSERT((freg_map[freg] & 0x1) == (freg <= SLJIT_NUMBER_OF_SCRATCH_FLOAT_REGISTERS));
 
    if (freg <= SLJIT_NUMBER_OF_SCRATCH_FLOAT_REGISTERS)
        freg--;
 
    return freg;
}
 
#define SLJIT_QUAD_OTHER_HALF(freg) ((((freg) & 0x1) << 1) - 1)
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_simd_mov(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 freg,
    sljit_s32 srcdst, sljit_sw srcdstw)
{
    sljit_s32 reg_size = SLJIT_SIMD_GET_REG_SIZE(type);
    sljit_s32 elem_size = SLJIT_SIMD_GET_ELEM_SIZE(type);
    sljit_s32 alignment = SLJIT_SIMD_GET_ELEM2_SIZE(type);
    sljit_ins ins;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_simd_mov(compiler, type, freg, srcdst, srcdstw));
 
    ADJUST_LOCAL_OFFSET(srcdst, srcdstw);
 
    if (reg_size != 3 && reg_size != 4)
        return SLJIT_ERR_UNSUPPORTED;
 
    if ((type & SLJIT_SIMD_FLOAT) && (elem_size < 2 || elem_size > 3))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (reg_size == 4)
        freg = simd_get_quad_reg_index(freg);
 
    if (!(srcdst & SLJIT_MEM)) {
        if (reg_size == 4)
            srcdst = simd_get_quad_reg_index(srcdst);
 
        if (type & SLJIT_SIMD_STORE)
            ins = VD4(srcdst) | VN4(freg) | VM4(freg);
        else
            ins = VD4(freg) | VN4(srcdst) | VM4(srcdst);
 
        if (reg_size == 4)
            ins |= (sljit_ins)1 << 6;
 
        return push_inst32(compiler, VORR | ins);
    }
 
    FAIL_IF(sljit_emit_simd_mem_offset(compiler, &srcdst, srcdstw));
 
    if (elem_size > 3)
        elem_size = 3;
 
    ins = ((type & SLJIT_SIMD_STORE) ? VST1 : VLD1) | VD4(freg)
        | (sljit_ins)((reg_size == 3) ? (0x7 << 8) : (0xa << 8));
 
    SLJIT_ASSERT(reg_size >= alignment);
 
    if (alignment == 3)
        ins |= 0x10;
    else if (alignment >= 4)
        ins |= 0x20;
 
    return push_inst32(compiler, ins | RN4(srcdst) | ((sljit_ins)elem_size) << 6 | 0xf);
}
 
static sljit_ins simd_get_imm(sljit_s32 elem_size, sljit_uw value)
{
    sljit_ins result;
 
    if (elem_size > 1 && (sljit_u16)value == (value >> 16)) {
        elem_size = 1;
        value = (sljit_u16)value;
    }
 
    if (elem_size == 1 && (sljit_u8)value == (value >> 8)) {
        elem_size = 0;
        value = (sljit_u8)value;
    }
 
    switch (elem_size) {
    case 0:
        SLJIT_ASSERT(value <= 0xff);
        result = 0xe00;
        break;
    case 1:
        SLJIT_ASSERT(value <= 0xffff);
        result = 0;
 
        while (1) {
            if (value <= 0xff) {
                result |= 0x800;
                break;
            }
 
            if ((value & 0xff) == 0) {
                value >>= 8;
                result |= 0xa00;
                break;
            }
 
            if (result != 0)
                return ~(sljit_ins)0;
 
            value ^= (sljit_uw)0xffff;
            result = (1 << 5);
        }
        break;
    default:
        SLJIT_ASSERT(value <= 0xffffffff);
        result = 0;
 
        while (1) {
            if (value <= 0xff) {
                result |= 0x000;
                break;
            }
 
            if ((value & ~(sljit_uw)0xff00) == 0) {
                value >>= 8;
                result |= 0x200;
                break;
            }
 
            if ((value & ~(sljit_uw)0xff0000) == 0) {
                value >>= 16;
                result |= 0x400;
                break;
            }
 
            if ((value & ~(sljit_uw)0xff000000) == 0) {
                value >>= 24;
                result |= 0x600;
                break;
            }
 
            if ((value & (sljit_uw)0xff) == 0xff && (value >> 16) == 0) {
                value >>= 8;
                result |= 0xc00;
                break;
            }
 
            if ((value & (sljit_uw)0xffff) == 0xffff && (value >> 24) == 0) {
                value >>= 16;
                result |= 0xd00;
                break;
            }
 
            if (result != 0)
                return ~(sljit_ins)0;
 
            value = ~value;
            result = (1 << 5);
        }
        break;
    }
 
    return ((sljit_ins)value & 0xf) | (((sljit_ins)value & 0x70) << 12) | (((sljit_ins)value & 0x80) << 21) | result;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_simd_replicate(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 freg,
    sljit_s32 src, sljit_sw srcw)
{
    sljit_s32 reg_size = SLJIT_SIMD_GET_REG_SIZE(type);
    sljit_s32 elem_size = SLJIT_SIMD_GET_ELEM_SIZE(type);
    sljit_ins ins, imm;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_simd_replicate(compiler, type, freg, src, srcw));
 
    ADJUST_LOCAL_OFFSET(src, srcw);
 
    if (reg_size != 3 && reg_size != 4)
        return SLJIT_ERR_UNSUPPORTED;
 
    if ((type & SLJIT_SIMD_FLOAT) ? (elem_size < 2 || elem_size > 3) : (elem_size > 2))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (reg_size == 4)
        freg = simd_get_quad_reg_index(freg);
 
    if (src == SLJIT_IMM && srcw == 0)
        return push_inst32(compiler, VMOV_i | ((reg_size == 4) ? (1 << 6) : 0) | VD4(freg));
 
    if (SLJIT_UNLIKELY(elem_size == 3)) {
        SLJIT_ASSERT(type & SLJIT_SIMD_FLOAT);
 
        if (src & SLJIT_MEM) {
            FAIL_IF(emit_fop_mem(compiler, FPU_LOAD | SLJIT_32, freg, src, srcw));
            src = freg;
        } else if (freg != src)
            FAIL_IF(push_inst32(compiler, VORR | VD4(freg) | VN4(src) | VM4(src)));
 
        freg += SLJIT_QUAD_OTHER_HALF(freg);
 
        if (freg != src)
            return push_inst32(compiler, VORR | VD4(freg) | VN4(src) | VM4(src));
        return SLJIT_SUCCESS;
    }
 
    if (src & SLJIT_MEM) {
        FAIL_IF(sljit_emit_simd_mem_offset(compiler, &src, srcw));
 
        ins = (sljit_ins)(elem_size << 6);
 
        if (reg_size == 4)
            ins |= 1 << 5;
 
        return push_inst32(compiler, VLD1_r | ins | VD4(freg) | RN4(src) | 0xf);
    }
 
    if (type & SLJIT_SIMD_FLOAT) {
        SLJIT_ASSERT(elem_size == 2);
        ins = ((sljit_ins)freg_ebit_map[src] << (16 + 2 + 1)) | ((sljit_ins)1 << (16 + 2));
 
        if (reg_size == 4)
            ins |= (sljit_ins)1 << 6;
 
        return push_inst32(compiler, VDUP_s | ins | VD4(freg) | (sljit_ins)freg_map[src]);
    }
 
    if (src == SLJIT_IMM) {
        if (elem_size < 2)
            srcw &= ((sljit_sw)1 << (((sljit_sw)1 << elem_size) << 3)) - 1;
 
        imm = simd_get_imm(elem_size, (sljit_uw)srcw);
 
        if (imm != ~(sljit_ins)0) {
            if (reg_size == 4)
                imm |= (sljit_ins)1 << 6;
 
            return push_inst32(compiler, VMOV_i | imm | VD4(freg));
        }
 
        FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)srcw));
        src = TMP_REG1;
    }
 
    switch (elem_size) {
    case 0:
        ins = 1 << 22;
        break;
    case 1:
        ins = 1 << 5;
        break;
    default:
        ins = 0;
        break;
    }
 
    if (reg_size == 4)
        ins |= (sljit_ins)1 << 21;
 
    return push_inst32(compiler, VDUP | ins | VN4(freg) | RT4(src));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_simd_lane_mov(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 freg, sljit_s32 lane_index,
    sljit_s32 srcdst, sljit_sw srcdstw)
{
    sljit_s32 reg_size = SLJIT_SIMD_GET_REG_SIZE(type);
    sljit_s32 elem_size = SLJIT_SIMD_GET_ELEM_SIZE(type);
    sljit_ins ins;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_simd_lane_mov(compiler, type, freg, lane_index, srcdst, srcdstw));
 
    ADJUST_LOCAL_OFFSET(srcdst, srcdstw);
 
    if (reg_size != 3 && reg_size != 4)
        return SLJIT_ERR_UNSUPPORTED;
 
    if ((type & SLJIT_SIMD_FLOAT) ? (elem_size < 2 || elem_size > 3) : (elem_size > 2))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (reg_size == 4)
        freg = simd_get_quad_reg_index(freg);
 
    if (type & SLJIT_SIMD_LANE_ZERO) {
        ins = (reg_size == 3) ? 0 : ((sljit_ins)1 << 6);
 
        if (type & SLJIT_SIMD_FLOAT) {
            if (elem_size == 3 && !(srcdst & SLJIT_MEM)) {
                if (lane_index == 1)
                    freg += SLJIT_QUAD_OTHER_HALF(freg);
 
                if (srcdst != freg)
                    FAIL_IF(push_inst32(compiler, VORR | VD4(freg) | VN4(srcdst) | VM4(srcdst)));
 
                freg += SLJIT_QUAD_OTHER_HALF(freg);
                return push_inst32(compiler, VMOV_i | VD4(freg));
            }
 
            if (srcdst == freg || (elem_size == 3 && srcdst == (freg + SLJIT_QUAD_OTHER_HALF(freg)))) {
                FAIL_IF(push_inst32(compiler, VORR | ins | VD4(TMP_FREG2) | VN4(freg) | VM4(freg)));
                srcdst = TMP_FREG2;
                srcdstw = 0;
            }
        }
 
        FAIL_IF(push_inst32(compiler, VMOV_i | ins | VD4(freg)));
    }
 
    if (reg_size == 4 && lane_index >= (0x8 >> elem_size)) {
        lane_index -= (0x8 >> elem_size);
        freg += SLJIT_QUAD_OTHER_HALF(freg);
    }
 
    if (srcdst & SLJIT_MEM) {
        if (elem_size == 3)
            return emit_fop_mem(compiler, ((type & SLJIT_SIMD_STORE) ? 0 : FPU_LOAD) | SLJIT_32, freg, srcdst, srcdstw);
 
        FAIL_IF(sljit_emit_simd_mem_offset(compiler, &srcdst, srcdstw));
 
        lane_index = lane_index << elem_size;
        ins = (sljit_ins)((elem_size << 10) | (lane_index << 5));
        return push_inst32(compiler, ((type & SLJIT_SIMD_STORE) ? VST1_s : VLD1_s) | ins | VD4(freg) | RN4(srcdst) | 0xf);
    }
 
    if (type & SLJIT_SIMD_FLOAT) {
        if (elem_size == 3) {
            if (type & SLJIT_SIMD_STORE)
                return push_inst32(compiler, VORR | VD4(srcdst) | VN4(freg) | VM4(freg));
            return push_inst32(compiler, VMOV_F32 | SLJIT_32 | VD4(freg) | VM4(srcdst));
        }
 
        if (type & SLJIT_SIMD_STORE) {
            if (freg_ebit_map[freg] == 0) {
                if (lane_index == 1)
                    freg = SLJIT_F64_SECOND(freg);
 
                return push_inst32(compiler, VMOV_F32 | VD4(srcdst) | VM4(freg));
            }
 
            FAIL_IF(push_inst32(compiler, VMOV_s | (1 << 20) | ((sljit_ins)lane_index << 21) | VN4(freg) | RT4(TMP_REG1)));
            return push_inst32(compiler, VMOV | VN4(srcdst) | RT4(TMP_REG1));
        }
 
        FAIL_IF(push_inst32(compiler, VMOV | (1 << 20) | VN4(srcdst) | RT4(TMP_REG1)));
        return push_inst32(compiler, VMOV_s | ((sljit_ins)lane_index << 21) | VN4(freg) | RT4(TMP_REG1));
    }
 
    if (srcdst == SLJIT_IMM) {
        if (elem_size < 2)
            srcdstw &= ((sljit_sw)1 << (((sljit_sw)1 << elem_size) << 3)) - 1;
 
        FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_uw)srcdstw));
        srcdst = TMP_REG1;
    }
 
    if (elem_size == 0)
        ins = 0x400000;
    else if (elem_size == 1)
        ins = 0x20;
    else
        ins = 0;
 
    lane_index = lane_index << elem_size;
    ins |= (sljit_ins)(((lane_index & 0x4) << 19) | ((lane_index & 0x3) << 5));
 
    if (type & SLJIT_SIMD_STORE) {
        ins |= (1 << 20);
 
        if (elem_size < 2 && !(type & SLJIT_SIMD_LANE_SIGNED))
            ins |= (1 << 23);
    }
 
    return push_inst32(compiler, VMOV_s | ins | VN4(freg) | RT4(srcdst));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_simd_lane_replicate(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 freg,
    sljit_s32 src, sljit_s32 src_lane_index)
{
    sljit_s32 reg_size = SLJIT_SIMD_GET_REG_SIZE(type);
    sljit_s32 elem_size = SLJIT_SIMD_GET_ELEM_SIZE(type);
    sljit_ins ins;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_simd_lane_replicate(compiler, type, freg, src, src_lane_index));
 
    if (reg_size != 3 && reg_size != 4)
        return SLJIT_ERR_UNSUPPORTED;
 
    if ((type & SLJIT_SIMD_FLOAT) && (elem_size < 2 || elem_size > 3))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (reg_size == 4) {
        freg = simd_get_quad_reg_index(freg);
        src = simd_get_quad_reg_index(src);
 
        if (src_lane_index >= (0x8 >> elem_size)) {
            src_lane_index -= (0x8 >> elem_size);
            src += SLJIT_QUAD_OTHER_HALF(src);
        }
    }
 
    if (elem_size == 3) {
        if (freg != src)
            FAIL_IF(push_inst32(compiler, VORR | VD4(freg) | VN4(src) | VM4(src)));
 
        freg += SLJIT_QUAD_OTHER_HALF(freg);
 
        if (freg != src)
            return push_inst32(compiler, VORR | VD4(freg) | VN4(src) | VM4(src));
        return SLJIT_SUCCESS;
    }
 
    ins = ((((sljit_ins)src_lane_index << 1) | 1) << (16 + elem_size));
 
    if (reg_size == 4)
        ins |= (sljit_ins)1 << 6;
 
    return push_inst32(compiler, VDUP_s | ins | VD4(freg) | VM4(src));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_simd_extend(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 freg,
    sljit_s32 src, sljit_sw srcw)
{
    sljit_s32 reg_size = SLJIT_SIMD_GET_REG_SIZE(type);
    sljit_s32 elem_size = SLJIT_SIMD_GET_ELEM_SIZE(type);
    sljit_s32 elem2_size = SLJIT_SIMD_GET_ELEM2_SIZE(type);
    sljit_s32 dst_reg;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_simd_extend(compiler, type, freg, src, srcw));
 
    ADJUST_LOCAL_OFFSET(src, srcw);
 
    if (reg_size != 3 && reg_size != 4)
        return SLJIT_ERR_UNSUPPORTED;
 
    if ((type & SLJIT_SIMD_FLOAT) && (elem_size != 2 || elem2_size != 3))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (reg_size == 4)
        freg = simd_get_quad_reg_index(freg);
 
    if (src & SLJIT_MEM) {
        FAIL_IF(sljit_emit_simd_mem_offset(compiler, &src, srcw));
        if (reg_size == 4 && elem2_size - elem_size == 1)
            FAIL_IF(push_inst32(compiler, VLD1 | (0x7 << 8) | VD4(freg) | RN4(src) | 0xf));
        else
            FAIL_IF(push_inst32(compiler, VLD1_s | (sljit_ins)((reg_size - elem2_size + elem_size) << 10) | VD4(freg) | RN4(src) | 0xf));
        src = freg;
    } else if (reg_size == 4)
        src = simd_get_quad_reg_index(src);
 
    if (!(type & SLJIT_SIMD_FLOAT)) {
        dst_reg = (reg_size == 4) ? freg : TMP_FREG2;
 
        do {
            FAIL_IF(push_inst32(compiler, VSHLL | ((type & SLJIT_SIMD_EXTEND_SIGNED) ? 0 : (1 << 28))
                | ((sljit_ins)1 << (19 + elem_size)) | VD4(dst_reg) | VM4(src)));
            src = dst_reg;
        } while (++elem_size < elem2_size);
 
        if (dst_reg == TMP_FREG2)
            return push_inst32(compiler, VORR | VD4(freg) | VN4(TMP_FREG2) | VM4(TMP_FREG2));
        return SLJIT_SUCCESS;
    }
 
    /* No SIMD variant, must use VFP instead. */
    SLJIT_ASSERT(reg_size == 4);
 
    if (freg == src) {
        freg += SLJIT_QUAD_OTHER_HALF(freg);
        FAIL_IF(push_inst32(compiler, VCVT_F64_F32 | VD4(freg) | VM4(src) | 0x20));
        freg += SLJIT_QUAD_OTHER_HALF(freg);
        return push_inst32(compiler, VCVT_F64_F32 | VD4(freg) | VM4(src));
    }
 
    FAIL_IF(push_inst32(compiler, VCVT_F64_F32 | VD4(freg) | VM4(src)));
    freg += SLJIT_QUAD_OTHER_HALF(freg);
    return push_inst32(compiler, VCVT_F64_F32 | VD4(freg) | VM4(src) | 0x20);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_simd_sign(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 freg,
    sljit_s32 dst, sljit_sw dstw)
{
    sljit_s32 reg_size = SLJIT_SIMD_GET_REG_SIZE(type);
    sljit_s32 elem_size = SLJIT_SIMD_GET_ELEM_SIZE(type);
    sljit_ins ins, imms;
    sljit_s32 dst_r;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_simd_sign(compiler, type, freg, dst, dstw));
 
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    if (reg_size != 3 && reg_size != 4)
        return SLJIT_ERR_UNSUPPORTED;
 
    if ((type & SLJIT_SIMD_FLOAT) && (elem_size < 2 || elem_size > 3))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    switch (elem_size) {
    case 0:
        imms = 0x243219;
        ins = VSHR | (1 << 28) | (0x9 << 16);
        break;
    case 1:
        imms = (reg_size == 4) ? 0x243219 : 0x2231;
        ins = VSHR | (1 << 28) | (0x11 << 16);
        break;
    case 2:
        imms = (reg_size == 4) ? 0x2231 : 0x21;
        ins = VSHR | (1 << 28) | (0x21 << 16);
        break;
    default:
        imms = 0x21;
        ins = VSHR | (1 << 28) | (0x1 << 16) | (1 << 7);
        break;
    }
 
    if (reg_size == 4) {
        freg = simd_get_quad_reg_index(freg);
        ins |= (sljit_ins)1 << 6;
    }
 
    SLJIT_ASSERT((freg_map[TMP_FREG2] & 0x1) == 0);
    FAIL_IF(push_inst32(compiler, ins | VD4(TMP_FREG2) | VM4(freg)));
 
    if (reg_size == 4 && elem_size > 0)
        FAIL_IF(push_inst32(compiler, VMOVN | ((sljit_ins)(elem_size - 1) << 18) | VD4(TMP_FREG2) | VM4(TMP_FREG2)));
 
    ins = (reg_size == 4 && elem_size == 0) ? (1 << 6) : 0;
 
    while (imms >= 0x100) {
        FAIL_IF(push_inst32(compiler, VSRA | (1 << 28) | ins | ((imms & 0xff) << 16) | VD4(TMP_FREG2) | VM4(TMP_FREG2)));
        imms >>= 8;
    }
 
    FAIL_IF(push_inst32(compiler, VSRA | (1 << 28) | ins | (1 << 7) | (imms << 16) | VD4(TMP_FREG2) | VM4(TMP_FREG2)));
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
    FAIL_IF(push_inst32(compiler, VMOV_s | (1 << 20) | (1 << 23) | (0x2 << 21) | RT4(dst_r) | VN4(TMP_FREG2)));
 
    if (reg_size == 4 && elem_size == 0) {
        SLJIT_ASSERT(freg_map[TMP_FREG2] + 1 == freg_map[TMP_FREG1]);
        FAIL_IF(push_inst32(compiler, VMOV_s | (1 << 20) | (1 << 23) | (0x2 << 21) | RT4(TMP_REG2)| VN4(TMP_FREG1)));
        FAIL_IF(push_inst32(compiler, ORR_W | RD4(dst_r) | RN4(dst_r) | RM4(TMP_REG2) | (0x2 << 12)));
    }
 
    if (dst_r == TMP_REG1)
        return emit_op_mem(compiler, STORE | WORD_SIZE, TMP_REG1, dst, dstw, TMP_REG2);
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_simd_op2(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 dst_freg, sljit_s32 src1_freg, sljit_s32 src2_freg)
{
    sljit_s32 reg_size = SLJIT_SIMD_GET_REG_SIZE(type);
    sljit_s32 elem_size = SLJIT_SIMD_GET_ELEM_SIZE(type);
    sljit_ins ins = 0;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_simd_op2(compiler, type, dst_freg, src1_freg, src2_freg));
 
    if (reg_size != 3 && reg_size != 4)
        return SLJIT_ERR_UNSUPPORTED;
 
    if ((type & SLJIT_SIMD_FLOAT) && (elem_size < 2 || elem_size > 3))
        return SLJIT_ERR_UNSUPPORTED;
 
    switch (SLJIT_SIMD_GET_OPCODE(type)) {
    case SLJIT_SIMD_OP2_AND:
        ins = VAND;
        break;
    case SLJIT_SIMD_OP2_OR:
        ins = VORR;
        break;
    case SLJIT_SIMD_OP2_XOR:
        ins = VEOR;
        break;
    }
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (reg_size == 4) {
        dst_freg = simd_get_quad_reg_index(dst_freg);
        src1_freg = simd_get_quad_reg_index(src1_freg);
        src2_freg = simd_get_quad_reg_index(src2_freg);
        ins |= (sljit_ins)1 << 6;
    }
 
    return push_inst32(compiler, ins | VD4(dst_freg) | VN4(src1_freg) | VM4(src2_freg));
}
 
#undef FPU_LOAD
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_atomic_load(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst_reg,
    sljit_s32 mem_reg)
{
    sljit_ins ins;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_atomic_load(compiler, op, dst_reg, mem_reg));
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV_U8:
        ins = LDREXB;
        break;
    case SLJIT_MOV_U16:
        ins = LDREXH;
        break;
    default:
        ins = LDREX;
        break;
    }
 
    return push_inst32(compiler, ins | RN4(mem_reg) | RT4(dst_reg));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_atomic_store(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 src_reg,
    sljit_s32 mem_reg,
    sljit_s32 temp_reg)
{
    sljit_ins ins;
 
    /* temp_reg == mem_reg is undefined so use another temp register */
    SLJIT_UNUSED_ARG(temp_reg);
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_atomic_store(compiler, op, src_reg, mem_reg, temp_reg));
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV_U8:
        ins = STREXB | RM4(TMP_REG1);
        break;
    case SLJIT_MOV_U16:
        ins = STREXH | RM4(TMP_REG1);
        break;
    default:
        ins = STREX | RD4(TMP_REG1);
        break;
    }
 
    FAIL_IF(push_inst32(compiler, ins | RN4(mem_reg) | RT4(src_reg)));
    if (op & SLJIT_SET_ATOMIC_STORED)
        return push_inst32(compiler, CMPI_W | RN4(TMP_REG1));
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
{
    struct sljit_const *const_;
    sljit_s32 dst_r;
 
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
    PTR_FAIL_IF(!const_);
    set_const(const_, compiler);
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
    PTR_FAIL_IF(emit_imm32_const(compiler, dst_r, (sljit_uw)init_value));
 
    if (dst & SLJIT_MEM)
        PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw, TMP_REG2));
    return const_;
}
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_mov_addr(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
{
    struct sljit_jump *jump;
    sljit_s32 dst_r;
 
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_emit_mov_addr(compiler, dst, dstw));
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
    PTR_FAIL_IF(!jump);
    set_mov_addr(jump, compiler, 0);
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
    PTR_FAIL_IF(push_inst16(compiler, RDN3(dst_r)));
    compiler->size += 3;
 
    if (dst & SLJIT_MEM)
        PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw, TMP_REG2));
    return jump;
}
 
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
{
    sljit_u16 *inst = (sljit_u16*)addr;
    SLJIT_UNUSED_ARG(executable_offset);
 
    SLJIT_UPDATE_WX_FLAGS(inst, inst + 4, 0);
    modify_imm32_const(inst, new_target);
    SLJIT_UPDATE_WX_FLAGS(inst, inst + 4, 1);
    inst = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
    SLJIT_CACHE_FLUSH(inst, inst + 4);
}
 
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
{
    sljit_set_jump_addr(addr, (sljit_uw)new_constant, executable_offset);
}