sljitNativeARM_64.c

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/*
 *    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)
{
    return "ARM-64" SLJIT_CPUINFO;
}
 
/* Length of an instruction word */
typedef sljit_u32 sljit_ins;
 
#define TMP_ZERO    (0)
 
#define TMP_REG1    (SLJIT_NUMBER_OF_REGISTERS + 2)
#define TMP_REG2    (SLJIT_NUMBER_OF_REGISTERS + 3)
#define TMP_LR      (SLJIT_NUMBER_OF_REGISTERS + 4)
#define TMP_FP      (SLJIT_NUMBER_OF_REGISTERS + 5)
 
#define TMP_FREG1   (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
#define TMP_FREG2   (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
 
/* r18 - platform register, currently not used */
static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 8] = {
    31, 0, 1, 2, 3, 4, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 8, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 31, 9, 10, 30, 29
};
 
static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
    0, 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 15, 14, 13, 12, 11, 10, 9, 8, 30, 31
};
 
#define W_OP ((sljit_ins)1 << 31)
#define RD(rd) ((sljit_ins)reg_map[rd])
#define RT(rt) ((sljit_ins)reg_map[rt])
#define RN(rn) ((sljit_ins)reg_map[rn] << 5)
#define RT2(rt2) ((sljit_ins)reg_map[rt2] << 10)
#define RM(rm) ((sljit_ins)reg_map[rm] << 16)
#define VD(vd) ((sljit_ins)freg_map[vd])
#define VT(vt) ((sljit_ins)freg_map[vt])
#define VT2(vt) ((sljit_ins)freg_map[vt] << 10)
#define VN(vn) ((sljit_ins)freg_map[vn] << 5)
#define VM(vm) ((sljit_ins)freg_map[vm] << 16)
 
/* --------------------------------------------------------------------- */
/*  Instrucion forms                                                     */
/* --------------------------------------------------------------------- */
 
#define ADC     0x9a000000
#define ADD     0x8b000000
#define ADDE        0x8b200000
#define ADDI        0x91000000
#define ADR     0x10000000
#define ADRP        0x90000000
#define AND     0x8a000000
#define ANDI        0x92000000
#define AND_v       0x0e201c00
#define ASRV        0x9ac02800
#define B       0x14000000
#define B_CC        0x54000000
#define BL      0x94000000
#define BLR     0xd63f0000
#define BR      0xd61f0000
#define BRK     0xd4200000
#define CAS     0xc8a07c00
#define CASB        0x08a07c00
#define CASH        0x48a07c00
#define CBZ     0xb4000000
#define CCMPI       0xfa400800
#define CLZ     0xdac01000
#define CSEL        0x9a800000
#define CSINC       0x9a800400
#define DUP_e       0x0e000400
#define DUP_g       0x0e000c00
#define EOR     0xca000000
#define EOR_v       0x2e201c00
#define EORI        0xd2000000
#define EXTR        0x93c00000
#define FABS        0x1e60c000
#define FADD        0x1e602800
#define FCMP        0x1e602000
#define FCSEL       0x1e600c00
#define FCVT        0x1e224000
#define FCVTL       0x0e217800
#define FCVTZS      0x9e780000
#define FDIV        0x1e601800
#define FMOV        0x1e604000
#define FMOV_R      0x9e660000
#define FMOV_I      0x1e601000
#define FMUL        0x1e600800
#define FNEG        0x1e614000
#define FSUB        0x1e603800
#define INS     0x4e001c00
#define INS_e       0x6e000400
#define LD1     0x0c407000
#define LD1_s       0x0d400000
#define LD1R        0x0d40c000
#define LDRI        0xf9400000
#define LDRI_F64    0xfd400000
#define LDRI_POST   0xf8400400
#define LDP     0xa9400000
#define LDP_F64     0x6d400000
#define LDP_POST    0xa8c00000
#define LDR_PRE     0xf8400c00
#define LDXR        0xc85f7c00
#define LDXRB       0x085f7c00
#define LDXRH       0x485f7c00
#define LSLV        0x9ac02000
#define LSRV        0x9ac02400
#define MADD        0x9b000000
#define MOVI        0x0f000400
#define MOVK        0xf2800000
#define MOVN        0x92800000
#define MOVZ        0xd2800000
#define NOP     0xd503201f
#define ORN     0xaa200000
#define ORR     0xaa000000
#define ORR_v       0x0ea01c00
#define ORRI        0xb2000000
#define RBIT        0xdac00000
#define RET     0xd65f0000
#define REV     0xdac00c00
#define REV16       0xdac00400
#define RORV        0x9ac02c00
#define SBC     0xda000000
#define SBFM        0x93400000
#define SCVTF       0x9e620000
#define SDIV        0x9ac00c00
#define SMADDL      0x9b200000
#define SMOV        0x0e002c00
#define SMULH       0x9b403c00
#define SSHLL       0x0f00a400
#define ST1     0x0c007000
#define ST1_s       0x0d000000
#define STP     0xa9000000
#define STP_F64     0x6d000000
#define STP_PRE     0xa9800000
#define STRB        0x38206800
#define STRBI       0x39000000
#define STRI        0xf9000000
#define STRI_F64    0xfd000000
#define STR_FI      0x3d000000
#define STR_FR      0x3c206800
#define STUR_FI     0x3c000000
#define STURBI      0x38000000
#define STXR        0xc8007c00
#define STXRB       0x8007c00
#define STXRH       0x48007c00
#define SUB     0xcb000000
#define SUBI        0xd1000000
#define SUBS        0xeb000000
#define TBZ     0x36000000
#define UBFM        0xd3400000
#define UCVTF       0x9e630000
#define UDIV        0x9ac00800
#define UMOV        0x0e003c00
#define UMULH       0x9bc03c00
#define USHLL       0x2f00a400
#define USHR        0x2f000400
#define USRA        0x2f001400
#define XTN     0x0e212800
 
#define CSET        (CSINC | RM(TMP_ZERO) | RN(TMP_ZERO))
#define LDR     (STRI | (1 << 22))
#define LDRB        (STRBI | (1 << 22))
#define LDRH        (LDRB | (1 << 30))
#define MOV     (ORR | RN(TMP_ZERO))
 
static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins)
{
    sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
    FAIL_IF(!ptr);
    *ptr = ins;
    compiler->size++;
    return SLJIT_SUCCESS;
}
 
static SLJIT_INLINE sljit_s32 emit_imm64_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_uw imm)
{
    FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | ((sljit_ins)(imm & 0xffff) << 5)));
    FAIL_IF(push_inst(compiler, MOVK | RD(dst) | (((sljit_ins)(imm >> 16) & 0xffff) << 5) | (1 << 21)));
    FAIL_IF(push_inst(compiler, MOVK | RD(dst) | (((sljit_ins)(imm >> 32) & 0xffff) << 5) | (2 << 21)));
    return push_inst(compiler, MOVK | RD(dst) | ((sljit_ins)(imm >> 48) << 5) | (3 << 21));
}
 
static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset)
{
    sljit_sw diff;
    sljit_uw target_addr;
 
    if (jump->flags & SLJIT_REWRITABLE_JUMP)
        goto exit;
 
    if (jump->flags & JUMP_ADDR)
        target_addr = jump->u.target;
    else {
        SLJIT_ASSERT(jump->u.label != NULL);
        target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset;
    }
 
    diff = (sljit_sw)target_addr - (sljit_sw)code_ptr - executable_offset;
 
    if (jump->flags & IS_COND) {
        diff += SSIZE_OF(ins);
        if (diff <= 0xfffff && diff >= -0x100000) {
            *(--code_ptr) ^= (jump->flags & IS_CBZ) ? (0x1 << 24) : 0x1;
            jump->flags |= PATCH_COND;
            jump->addr -= sizeof(sljit_ins);
            return code_ptr;
        }
        diff -= SSIZE_OF(ins);
    }
 
    if (diff <= 0x7ffffff && diff >= -0x8000000) {
        if (jump->flags & IS_COND)
            code_ptr[-1] -= (4 << 5);
        jump->flags |= PATCH_B;
        return code_ptr;
    }
 
    if (target_addr < 0x100000000l) {
        if (jump->flags & IS_COND)
            code_ptr[-1] -= (2 << 5);
        code_ptr[2] = code_ptr[0];
        return code_ptr + 2;
    }
 
    if (diff <= 0xfffff000l && diff >= -0x100000000l) {
        if (jump->flags & IS_COND)
            code_ptr[-1] -= (2 << 5);
        jump->flags |= PATCH_B32;
        code_ptr[2] = code_ptr[0];
        return code_ptr + 2;
    }
 
    if (target_addr < 0x1000000000000l) {
        if (jump->flags & IS_COND)
            code_ptr[-1] -= (1 << 5);
        jump->flags |= PATCH_ABS48;
        code_ptr[3] = code_ptr[0];
        return code_ptr + 3;
    }
 
exit:
    jump->flags |= PATCH_ABS64;
    code_ptr[4] = code_ptr[0];
    return code_ptr + 4;
}
 
static SLJIT_INLINE sljit_sw mov_addr_get_length(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset)
{
    sljit_uw addr;
    sljit_sw diff;
    SLJIT_UNUSED_ARG(executable_offset);
 
    SLJIT_ASSERT(jump->flags < ((sljit_uw)4 << JUMP_SIZE_SHIFT));
    if (jump->flags & JUMP_ADDR)
        addr = jump->u.target;
    else
        addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code + jump->u.label->size, executable_offset);
 
    diff = (sljit_sw)addr - (sljit_sw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
 
    if (diff <= 0xfffff && diff >= -0x100000) {
        jump->flags |= PATCH_B;
        return 0;
    }
 
    if (diff <= 0xfffff000l && diff >= -0x100000000l) {
        SLJIT_ASSERT(jump->flags >= ((sljit_uw)1 << JUMP_SIZE_SHIFT));
        jump->flags |= PATCH_B32;
        return 1;
    }
 
    if (addr < 0x100000000l) {
        SLJIT_ASSERT(jump->flags >= ((sljit_uw)1 << JUMP_SIZE_SHIFT));
        return 1;
    }
 
    if (addr < 0x1000000000000l) {
        SLJIT_ASSERT(jump->flags >= ((sljit_uw)2 << JUMP_SIZE_SHIFT));
        jump->flags |= PATCH_ABS48;
        return 2;
    }
 
    SLJIT_ASSERT(jump->flags >= ((sljit_uw)3 << JUMP_SIZE_SHIFT));
    jump->flags |= PATCH_ABS64;
    return 3;
}
 
static SLJIT_INLINE void generate_jump_or_mov_addr(struct sljit_jump *jump, sljit_sw executable_offset)
{
    sljit_sw addr = (sljit_sw)((jump->flags & JUMP_ADDR) ? jump->u.target : jump->u.label->u.addr);
    sljit_ins* buf_ptr = (sljit_ins*)jump->addr;
    sljit_u32 dst;
    SLJIT_UNUSED_ARG(executable_offset);
 
    if (!(jump->flags & JUMP_MOV_ADDR)) {
        if (jump->flags & PATCH_COND) {
            addr = (addr - (sljit_sw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) >> 2;
            SLJIT_ASSERT(addr <= 0x3ffff && addr >= -0x40000);
            buf_ptr[0] = (buf_ptr[0] & ~(sljit_ins)0xffffe0) | (sljit_ins)((addr & 0x7ffff) << 5);
            return;
        }
 
        if (jump->flags & PATCH_B) {
            addr = (addr - (sljit_sw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) >> 2;
            SLJIT_ASSERT(addr <= 0x1ffffff && addr >= -0x2000000);
            buf_ptr[0] = ((jump->flags & IS_BL) ? BL : B) | (sljit_ins)(addr & 0x3ffffff);
            return;
        }
 
        dst = (buf_ptr[0] >> 5) & 0x1f;
 
        if (jump->flags & PATCH_B32) {
            addr -= (sljit_sw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) & ~(sljit_sw)0xfff;
            SLJIT_ASSERT(addr <= 0xfffff000l && addr >= -0x100000000l);
            buf_ptr[0] = ADRP | (((sljit_ins)(addr >> 12) & 0x3) << 29) | (((sljit_ins)(addr >> 14) & 0x7ffff) << 5) | dst;
            buf_ptr[1] = ADDI | dst | (dst << 5) | ((sljit_ins)(addr & 0xfff) << 10);
            return;
        }
    } else {
        dst = *buf_ptr;
 
        if (jump->flags & PATCH_B) {
            addr -= (sljit_sw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset);
            SLJIT_ASSERT(addr <= 0xfffff && addr >= -0x100000);
            buf_ptr[0] = ADR | (((sljit_ins)addr & 0x3) << 29) | (((sljit_ins)(addr >> 2) & 0x7ffff) << 5) | dst;
            return;
        }
 
        if (jump->flags & PATCH_B32) {
            addr -= ((sljit_sw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) & ~(sljit_sw)0xfff;
            SLJIT_ASSERT(addr <= 0xffffffffl && addr >= -0x100000000l);
            buf_ptr[0] = ADRP | (((sljit_ins)(addr >> 12) & 0x3) << 29) | (((sljit_ins)(addr >> 14) & 0x7ffff) << 5) | dst;
            buf_ptr[1] = ADDI | dst | (dst << 5) | ((sljit_ins)(addr & 0xfff) << 10);
            return;
        }
    }
 
    SLJIT_ASSERT((jump->flags & (PATCH_ABS48 | PATCH_ABS64)) || (sljit_uw)addr <= (sljit_uw)0xffffffff);
    SLJIT_ASSERT((jump->flags & PATCH_ABS64) || (sljit_uw)addr <= (sljit_uw)0xffffffffffff);
 
    buf_ptr[0] = MOVZ | (((sljit_ins)addr & 0xffff) << 5) | dst;
    buf_ptr[1] = MOVK | (((sljit_ins)(addr >> 16) & 0xffff) << 5) | (1 << 21) | dst;
    if (jump->flags & (PATCH_ABS48 | PATCH_ABS64))
        buf_ptr[2] = MOVK | (((sljit_ins)(addr >> 32) & 0xffff) << 5) | (2 << 21) | dst;
 
    if (jump->flags & PATCH_ABS64)
        buf_ptr[3] = MOVK | ((sljit_ins)((sljit_uw)addr >> 48) << 5) | (3 << 21) | dst;
}
 
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)) {
                if (jump->flags & JUMP_ADDR) {
                    if (jump->u.target < 0x100000000l)
                        total_size = 3;
                    else if (jump->u.target < 0x1000000000000l)
                        total_size = 4;
                } else {
                    /* Unit size: instruction. */
                    diff = (sljit_sw)jump->u.label->size - (sljit_sw)jump->addr;
 
                    if ((jump->flags & IS_COND) && (diff + 1) <= (0xfffff / SSIZE_OF(ins)) && (diff + 1) >= (-0x100000 / SSIZE_OF(ins)))
                        total_size = 0;
                    else if (diff <= (0x7ffffff / SSIZE_OF(ins)) && diff >= (-0x8000000 / SSIZE_OF(ins)))
                        total_size = 1;
                    else if (diff <= (0xfffff000l / SSIZE_OF(ins)) && diff >= (-0x100000000l / SSIZE_OF(ins)))
                        total_size = 3;
                }
            }
 
            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 <= (0xfffff / SSIZE_OF(ins)) && diff >= (-0x100000 / SSIZE_OF(ins)))
                    total_size = 0;
                else if (diff <= (0xfffff000l / SSIZE_OF(ins)) && diff >= (-0x100000000l / SSIZE_OF(ins)))
                    total_size = 1;
            } else if (jump->u.target < 0x100000000l)
                total_size = 1;
            else if (jump->u.target < 0x1000000000000l)
                total_size = 2;
 
            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_ins *code;
    sljit_ins *code_ptr;
    sljit_ins *buf_ptr;
    sljit_ins *buf_end;
    sljit_uw word_count;
    SLJIT_NEXT_DEFINE_TYPES;
    sljit_sw executable_offset;
    sljit_sw addr;
 
    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_ins*)allocate_executable_memory(compiler->size * sizeof(sljit_ins), options, exec_allocator_data, &executable_offset);
    PTR_FAIL_WITH_EXEC_IF(code);
 
    reverse_buf(compiler);
    buf = compiler->buf;
 
    code_ptr = code;
    word_count = 0;
    label = compiler->labels;
    jump = compiler->jumps;
    const_ = compiler->consts;
    SLJIT_NEXT_INIT_TYPES();
    SLJIT_GET_NEXT_MIN();
 
    do {
        buf_ptr = (sljit_ins*)buf->memory;
        buf_end = buf_ptr + (buf->used_size >> 2);
        do {
            *code_ptr = *buf_ptr++;
            if (next_min_addr == word_count) {
                SLJIT_ASSERT(!label || label->size >= word_count);
                SLJIT_ASSERT(!jump || jump->addr >= word_count);
                SLJIT_ASSERT(!const_ || const_->addr >= word_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);
                    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)) {
                        word_count = word_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((jump->flags & PATCH_COND) || ((sljit_uw)code_ptr - jump->addr < (jump->flags >> JUMP_SIZE_SHIFT) * sizeof(sljit_ins)));
                    } else {
                        word_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++;
            word_count++;
        } while (buf_ptr < buf_end);
 
        buf = buf->next;
    } while (buf);
 
    if (label && label->size == word_count) {
        label->u.addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
        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_ins);
 
    code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
    code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
 
    SLJIT_CACHE_FLUSH(code, code_ptr);
    SLJIT_UPDATE_WX_FLAGS(code, code_ptr, 1);
    return code;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
{
    switch (feature_type) {
    case SLJIT_HAS_FPU:
    case SLJIT_HAS_SIMD:
#ifdef SLJIT_IS_FPU_AVAILABLE
        return (SLJIT_IS_FPU_AVAILABLE) != 0;
#else
        /* Available by default. */
        return 1;
#endif
 
    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;
    }
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_cmp_info(sljit_s32 type)
{
    switch (type) {
    case SLJIT_UNORDERED_OR_EQUAL:
    case SLJIT_ORDERED_NOT_EQUAL:
        return 2;
    }
 
    return 0;
}
 
/* --------------------------------------------------------------------- */
/*  Core code generator functions.                                       */
/* --------------------------------------------------------------------- */
 
#define COUNT_TRAILING_ZERO(value, result) \
    result = 0; \
    if (!(value & 0xffffffff)) { \
        result += 32; \
        value >>= 32; \
    } \
    if (!(value & 0xffff)) { \
        result += 16; \
        value >>= 16; \
    } \
    if (!(value & 0xff)) { \
        result += 8; \
        value >>= 8; \
    } \
    if (!(value & 0xf)) { \
        result += 4; \
        value >>= 4; \
    } \
    if (!(value & 0x3)) { \
        result += 2; \
        value >>= 2; \
    } \
    if (!(value & 0x1)) { \
        result += 1; \
        value >>= 1; \
    }
 
#define LOGICAL_IMM_CHECK (sljit_ins)0x100
 
static sljit_ins logical_imm(sljit_sw imm, sljit_u32 len)
{
    sljit_s32 negated;
    sljit_u32 ones, right;
    sljit_uw mask, uimm;
    sljit_ins ins;
 
    if (len & LOGICAL_IMM_CHECK) {
        len &= ~LOGICAL_IMM_CHECK;
        if (len == 32 && (imm == 0 || imm == -1))
            return 0;
        if (len == 16 && ((sljit_s32)imm == 0 || (sljit_s32)imm == -1))
            return 0;
    }
 
    SLJIT_ASSERT((len == 32 && imm != 0 && imm != -1)
        || (len == 16 && (sljit_s32)imm != 0 && (sljit_s32)imm != -1));
 
    uimm = (sljit_uw)imm;
    while (1) {
        if (len <= 0) {
            SLJIT_UNREACHABLE();
            return 0;
        }
 
        mask = ((sljit_uw)1 << len) - 1;
        if ((uimm & mask) != ((uimm >> len) & mask))
            break;
        len >>= 1;
    }
 
    len <<= 1;
 
    negated = 0;
    if (uimm & 0x1) {
        negated = 1;
        uimm = ~uimm;
    }
 
    if (len < 64)
        uimm &= ((sljit_uw)1 << len) - 1;
 
    /* Unsigned right shift. */
    COUNT_TRAILING_ZERO(uimm, right);
 
    /* Signed shift. We also know that the highest bit is set. */
    imm = (sljit_sw)~uimm;
    SLJIT_ASSERT(imm < 0);
 
    COUNT_TRAILING_ZERO(imm, ones);
 
    if (~imm)
        return 0;
 
    if (len == 64)
        ins = 1 << 22;
    else
        ins = (0x3f - ((len << 1) - 1)) << 10;
 
    if (negated)
        return ins | ((len - ones - 1) << 10) | ((len - ones - right) << 16);
 
    return ins | ((ones - 1) << 10) | ((len - right) << 16);
}
 
#undef COUNT_TRAILING_ZERO
 
static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw simm)
{
    sljit_uw imm = (sljit_uw)simm;
    sljit_u32 i, zeros, ones, first;
    sljit_ins bitmask;
 
    /* Handling simple immediates first. */
    if (imm <= 0xffff)
        return push_inst(compiler, MOVZ | RD(dst) | ((sljit_ins)imm << 5));
 
    if (simm < 0 && simm >= -0x10000)
        return push_inst(compiler, MOVN | RD(dst) | (((sljit_ins)~imm & 0xffff) << 5));
 
    if (imm <= 0xffffffffl) {
        if ((imm & 0xffff) == 0)
            return push_inst(compiler, MOVZ | RD(dst) | ((sljit_ins)(imm >> 16) << 5) | (1 << 21));
        if ((imm & 0xffff0000l) == 0xffff0000)
            return push_inst(compiler, (MOVN ^ W_OP) | RD(dst) | (((sljit_ins)~imm & 0xffff) << 5));
        if ((imm & 0xffff) == 0xffff)
            return push_inst(compiler, (MOVN ^ W_OP) | RD(dst) | (((sljit_ins)~imm & 0xffff0000u) >> (16 - 5)) | (1 << 21));
 
        bitmask = logical_imm(simm, 16);
        if (bitmask != 0)
            return push_inst(compiler, (ORRI ^ W_OP) | RD(dst) | RN(TMP_ZERO) | bitmask);
 
        FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | (((sljit_ins)imm & 0xffff) << 5)));
        return push_inst(compiler, MOVK | RD(dst) | (((sljit_ins)imm & 0xffff0000u) >> (16 - 5)) | (1 << 21));
    }
 
    bitmask = logical_imm(simm, 32);
    if (bitmask != 0)
        return push_inst(compiler, ORRI | RD(dst) | RN(TMP_ZERO) | bitmask);
 
    if (simm < 0 && simm >= -0x100000000l) {
        if ((imm & 0xffff) == 0xffff)
            return push_inst(compiler, MOVN | RD(dst) | (((sljit_ins)~imm & 0xffff0000u) >> (16 - 5)) | (1 << 21));
 
        FAIL_IF(push_inst(compiler, MOVN | RD(dst) | (((sljit_ins)~imm & 0xffff) << 5)));
        return push_inst(compiler, MOVK | RD(dst) | (((sljit_ins)imm & 0xffff0000u) >> (16 - 5)) | (1 << 21));
    }
 
    /* A large amount of number can be constructed from ORR and MOVx, but computing them is costly. */
 
    zeros = 0;
    ones = 0;
    for (i = 4; i > 0; i--) {
        if ((simm & 0xffff) == 0)
            zeros++;
        if ((simm & 0xffff) == 0xffff)
            ones++;
        simm >>= 16;
    }
 
    simm = (sljit_sw)imm;
    first = 1;
    if (ones > zeros) {
        simm = ~simm;
        for (i = 0; i < 4; i++) {
            if (!(simm & 0xffff)) {
                simm >>= 16;
                continue;
            }
            if (first) {
                first = 0;
                FAIL_IF(push_inst(compiler, MOVN | RD(dst) | (((sljit_ins)simm & 0xffff) << 5) | (i << 21)));
            }
            else
                FAIL_IF(push_inst(compiler, MOVK | RD(dst) | (((sljit_ins)~simm & 0xffff) << 5) | (i << 21)));
            simm >>= 16;
        }
        return SLJIT_SUCCESS;
    }
 
    for (i = 0; i < 4; i++) {
        if (!(simm & 0xffff)) {
            simm >>= 16;
            continue;
        }
        if (first) {
            first = 0;
            FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | (((sljit_ins)simm & 0xffff) << 5) | (i << 21)));
        }
        else
            FAIL_IF(push_inst(compiler, MOVK | RD(dst) | (((sljit_ins)simm & 0xffff) << 5) | (i << 21)));
        simm >>= 16;
    }
    return SLJIT_SUCCESS;
}
 
#define ARG1_IMM    0x0010000
#define ARG2_IMM    0x0020000
#define INT_OP      0x0040000
#define SET_FLAGS   0x0080000
#define UNUSED_RETURN   0x0100000
 
#define CHECK_FLAGS(flag_bits) \
    if (flags & SET_FLAGS) { \
        inv_bits |= flag_bits; \
        if (flags & UNUSED_RETURN) \
            dst = TMP_ZERO; \
    }
 
static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 dst, sljit_sw arg1, sljit_sw arg2)
{
    /* dst must be register, TMP_REG1
       arg1 must be register, TMP_REG1, imm
       arg2 must be register, TMP_REG2, imm */
    sljit_ins inv_bits = (flags & INT_OP) ? W_OP : 0;
    sljit_ins inst_bits;
    sljit_s32 op = (flags & 0xffff);
    sljit_s32 reg;
    sljit_sw imm, nimm;
 
    if (SLJIT_UNLIKELY((flags & (ARG1_IMM | ARG2_IMM)) == (ARG1_IMM | ARG2_IMM))) {
        /* Both are immediates. */
        flags &= ~ARG1_IMM;
        if (arg1 == 0 && op != SLJIT_ADD && op != SLJIT_SUB)
            arg1 = TMP_ZERO;
        else {
            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 (op) {
        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_ADDC:
        case SLJIT_SUBC:
        case SLJIT_MUL:
        case SLJIT_MULADD:
            /* No form with immediate operand (except imm 0, which
            is represented by a ZERO register). */
            break;
        case SLJIT_MOV:
            SLJIT_ASSERT(!(flags & SET_FLAGS) && (flags & ARG2_IMM) && arg1 == TMP_REG1);
            return load_immediate(compiler, dst, imm);
        case SLJIT_SUB:
            compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
            if (flags & ARG1_IMM)
                break;
            imm = -imm;
            /* Fall through. */
        case SLJIT_ADD:
            if (op != SLJIT_SUB)
                compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
 
            if (imm == 0) {
                CHECK_FLAGS(1 << 29);
                return push_inst(compiler, ((op == SLJIT_ADD ? ADDI : SUBI) ^ inv_bits) | RD(dst) | RN(reg));
            }
            if (imm > 0 && imm <= 0xfff) {
                CHECK_FLAGS(1 << 29);
                return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | ((sljit_ins)imm << 10));
            }
            nimm = -imm;
            if (nimm > 0 && nimm <= 0xfff) {
                CHECK_FLAGS(1 << 29);
                return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | ((sljit_ins)nimm << 10));
            }
            if (imm > 0 && imm <= 0xffffff && !(imm & 0xfff)) {
                CHECK_FLAGS(1 << 29);
                return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | (((sljit_ins)imm >> 12) << 10) | (1 << 22));
            }
            if (nimm > 0 && nimm <= 0xffffff && !(nimm & 0xfff)) {
                CHECK_FLAGS(1 << 29);
                return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | (((sljit_ins)nimm >> 12) << 10) | (1 << 22));
            }
            if (imm > 0 && imm <= 0xffffff && !(flags & SET_FLAGS)) {
                FAIL_IF(push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | (((sljit_ins)imm >> 12) << 10) | (1 << 22)));
                return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(dst) | (((sljit_ins)imm & 0xfff) << 10));
            }
            if (nimm > 0 && nimm <= 0xffffff && !(flags & SET_FLAGS)) {
                FAIL_IF(push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | (((sljit_ins)nimm >> 12) << 10) | (1 << 22)));
                return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(dst) | (((sljit_ins)nimm & 0xfff) << 10));
            }
            break;
        case SLJIT_AND:
            inst_bits = logical_imm(imm, LOGICAL_IMM_CHECK | ((flags & INT_OP) ? 16 : 32));
            if (!inst_bits)
                break;
            CHECK_FLAGS(3 << 29);
            return push_inst(compiler, (ANDI ^ inv_bits) | RD(dst) | RN(reg) | inst_bits);
        case SLJIT_XOR:
            if (imm == -1) {
                FAIL_IF(push_inst(compiler, (ORN ^ inv_bits) | RD(dst) | RN(TMP_ZERO) | RM(reg)));
                goto set_flags;
            }
            /* fallthrough */
        case SLJIT_OR:
            inst_bits = logical_imm(imm, LOGICAL_IMM_CHECK | ((flags & INT_OP) ? 16 : 32));
            if (!inst_bits)
                break;
            if (op == SLJIT_OR)
                inst_bits |= ORRI;
            else
                inst_bits |= EORI;
            FAIL_IF(push_inst(compiler, (inst_bits ^ inv_bits) | RD(dst) | RN(reg)));
            goto set_flags;
        case SLJIT_SHL:
        case SLJIT_MSHL:
            if (flags & ARG1_IMM)
                break;
 
            if (flags & INT_OP) {
                imm &= 0x1f;
                inst_bits = (((sljit_ins)-imm & 0x1f) << 16) | ((31 - (sljit_ins)imm) << 10);
            } else {
                imm &= 0x3f;
                inst_bits = ((sljit_ins)1 << 22) | (((sljit_ins)-imm & 0x3f) << 16) | ((63 - (sljit_ins)imm) << 10);
            }
 
            inv_bits |= inv_bits >> 9;
            FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | inst_bits));
            goto set_flags;
        case SLJIT_LSHR:
        case SLJIT_MLSHR:
        case SLJIT_ASHR:
        case SLJIT_MASHR:
            if (flags & ARG1_IMM)
                break;
 
            inv_bits |= inv_bits >> 9;
            if (op >= SLJIT_ASHR)
                inv_bits |= 1 << 30;
 
            if (flags & INT_OP) {
                imm &= 0x1f;
                inst_bits = ((sljit_ins)imm << 16) | (31 << 10);
            } else {
                imm &= 0x3f;
                inst_bits = ((sljit_ins)1 << 22) | ((sljit_ins)imm << 16) | (63 << 10);
            }
 
            FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | inst_bits));
            goto set_flags;
        case SLJIT_ROTL:
        case SLJIT_ROTR:
            if (flags & ARG1_IMM)
                break;
 
            if (op == SLJIT_ROTL)
                imm = -imm;
 
            imm &= (flags & INT_OP) ? 0x1f : 0x3f;
            return push_inst(compiler, (EXTR ^ (inv_bits | (inv_bits >> 9))) | RD(dst) | RN(arg1) | RM(arg1) | ((sljit_ins)imm << 10));
        default:
            SLJIT_UNREACHABLE();
            break;
        }
 
        if (flags & ARG2_IMM) {
            if (arg2 == 0)
                arg2 = TMP_ZERO;
            else {
                FAIL_IF(load_immediate(compiler, TMP_REG2, arg2));
                arg2 = TMP_REG2;
            }
        }
        else {
            if (arg1 == 0)
                arg1 = TMP_ZERO;
            else {
                FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
                arg1 = TMP_REG1;
            }
        }
    }
 
    /* Both arguments are registers. */
    switch (op) {
    case SLJIT_MOV:
    case SLJIT_MOV_P:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
        if (dst == arg2)
            return SLJIT_SUCCESS;
        return push_inst(compiler, MOV | RD(dst) | RM(arg2));
    case SLJIT_MOV_U8:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
        inv_bits |= inv_bits >> 9;
        return push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg2) | (7 << 10));
    case SLJIT_MOV_S8:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
        inv_bits |= inv_bits >> 9;
        return push_inst(compiler, (SBFM ^ inv_bits) | RD(dst) | RN(arg2) | (7 << 10));
    case SLJIT_MOV_U16:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
        inv_bits |= inv_bits >> 9;
        return push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg2) | (15 << 10));
    case SLJIT_MOV_S16:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
        inv_bits |= inv_bits >> 9;
        return push_inst(compiler, (SBFM ^ inv_bits) | RD(dst) | RN(arg2) | (15 << 10));
    case SLJIT_MOV32:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
        if (dst == arg2)
            return SLJIT_SUCCESS;
        /* fallthrough */
    case SLJIT_MOV_U32:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
        return push_inst(compiler, (MOV ^ W_OP) | RD(dst) | RM(arg2));
    case SLJIT_MOV_S32:
        SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
        return push_inst(compiler, SBFM | (1 << 22) | RD(dst) | RN(arg2) | (31 << 10));
    case SLJIT_CLZ:
        SLJIT_ASSERT(arg1 == TMP_REG1);
        return push_inst(compiler, (CLZ ^ inv_bits) | RD(dst) | RN(arg2));
    case SLJIT_CTZ:
        SLJIT_ASSERT(arg1 == TMP_REG1);
        FAIL_IF(push_inst(compiler, (RBIT ^ inv_bits) | RD(dst) | RN(arg2)));
        return push_inst(compiler, (CLZ ^ inv_bits) | RD(dst) | RN(dst));
    case SLJIT_REV:
        SLJIT_ASSERT(arg1 == TMP_REG1);
        inv_bits |= inv_bits >> 21;
        return push_inst(compiler, (REV ^ inv_bits) | RD(dst) | RN(arg2));
    case SLJIT_REV_U16:
    case SLJIT_REV_S16:
        SLJIT_ASSERT(arg1 == TMP_REG1 && dst != TMP_REG2);
        FAIL_IF(push_inst(compiler, (REV16 ^ (sljit_ins)0x80000000) | RD(dst) | RN(arg2)));
        if (dst == TMP_REG1 || (arg2 == TMP_REG2 && op == SLJIT_REV_U16))
            return SLJIT_SUCCESS;
        inv_bits |= inv_bits >> 9;
        return push_inst(compiler, ((op == SLJIT_REV_U16 ? UBFM : SBFM) ^ inv_bits) | RD(dst) | RN(dst) | (15 << 10));
    case SLJIT_REV_U32:
    case SLJIT_REV_S32:
        SLJIT_ASSERT(arg1 == TMP_REG1 && dst != TMP_REG2);
        FAIL_IF(push_inst(compiler, (REV ^ (sljit_ins)0x80000400) | RD(dst) | RN(arg2)));
        if (op == SLJIT_REV_U32 || dst == TMP_REG1)
            return SLJIT_SUCCESS;
        return push_inst(compiler, SBFM | (1 << 22) | RD(dst) | RN(dst) | (31 << 10));
    case SLJIT_ADD:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
        CHECK_FLAGS(1 << 29);
        return push_inst(compiler, (ADD ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
    case SLJIT_ADDC:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
        CHECK_FLAGS(1 << 29);
        return push_inst(compiler, (ADC ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
    case SLJIT_SUB:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
        CHECK_FLAGS(1 << 29);
        return push_inst(compiler, (SUB ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
    case SLJIT_SUBC:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
        CHECK_FLAGS(1 << 29);
        return push_inst(compiler, (SBC ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
    case SLJIT_MUL:
        compiler->status_flags_state = 0;
        if (!(flags & SET_FLAGS))
            return push_inst(compiler, (MADD ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2) | RT2(TMP_ZERO));
        if (flags & INT_OP) {
            FAIL_IF(push_inst(compiler, SMADDL | RD(dst) | RN(arg1) | RM(arg2) | (31 << 10)));
            FAIL_IF(push_inst(compiler, ADD | RD(TMP_LR) | RN(TMP_ZERO) | RM(dst) | (2 << 22) | (31 << 10)));
            return push_inst(compiler, SUBS | RD(TMP_ZERO) | RN(TMP_LR) | RM(dst) | (2 << 22) | (63 << 10));
        }
        FAIL_IF(push_inst(compiler, SMULH | RD(TMP_LR) | RN(arg1) | RM(arg2)));
        FAIL_IF(push_inst(compiler, MADD | RD(dst) | RN(arg1) | RM(arg2) | RT2(TMP_ZERO)));
        return push_inst(compiler, SUBS | RD(TMP_ZERO) | RN(TMP_LR) | RM(dst) | (2 << 22) | (63 << 10));
    case SLJIT_AND:
        CHECK_FLAGS(3 << 29);
        return push_inst(compiler, (AND ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
    case SLJIT_OR:
        FAIL_IF(push_inst(compiler, (ORR ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
        break; /* Set flags. */
    case SLJIT_XOR:
        FAIL_IF(push_inst(compiler, (EOR ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
        break; /* Set flags. */
    case SLJIT_SHL:
    case SLJIT_MSHL:
        FAIL_IF(push_inst(compiler, (LSLV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
        break; /* Set flags. */
    case SLJIT_LSHR:
    case SLJIT_MLSHR:
        FAIL_IF(push_inst(compiler, (LSRV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
        break; /* Set flags. */
    case SLJIT_ASHR:
    case SLJIT_MASHR:
        FAIL_IF(push_inst(compiler, (ASRV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
        break; /* Set flags. */
    case SLJIT_ROTL:
        FAIL_IF(push_inst(compiler, (SUB ^ inv_bits) | RD(TMP_REG2) | RN(TMP_ZERO) | RM(arg2)));
        arg2 = TMP_REG2;
        /* fallthrough */
    case SLJIT_ROTR:
        return push_inst(compiler, (RORV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
    case SLJIT_MULADD:
        compiler->status_flags_state = 0;
        return push_inst(compiler, (MADD ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2) | RT2(dst));
    default:
        SLJIT_UNREACHABLE();
        return SLJIT_SUCCESS;
    }
 
set_flags:
    if (flags & SET_FLAGS)
        return push_inst(compiler, (SUBS ^ inv_bits) | RD(TMP_ZERO) | RN(dst) | RM(TMP_ZERO));
    return SLJIT_SUCCESS;
}
 
#define STORE       0x10
#define SIGNED      0x20
 
#define BYTE_SIZE   0x0
#define HALF_SIZE   0x1
#define INT_SIZE    0x2
#define WORD_SIZE   0x3
 
#define MEM_SIZE_SHIFT(flags) ((sljit_ins)(flags) & 0x3)
 
static 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_u32 shift = MEM_SIZE_SHIFT(flags);
    sljit_u32 type = (shift << 30);
 
    if (!(flags & STORE))
        type |= (flags & SIGNED) ? 0x00800000 : 0x00400000;
 
    SLJIT_ASSERT(arg & SLJIT_MEM);
 
    if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
        argw &= 0x3;
 
        if (argw == 0 || argw == shift)
            return push_inst(compiler, STRB | type | RT(reg)
                | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | (argw ? (1 << 12) : 0));
 
        FAIL_IF(push_inst(compiler, ADD | RD(tmp_reg) | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | ((sljit_ins)argw << 10)));
        return push_inst(compiler, STRBI | type | RT(reg) | RN(tmp_reg));
    }
 
    arg &= REG_MASK;
 
    if (!arg) {
        FAIL_IF(load_immediate(compiler, tmp_reg, argw & ~(0xfff << shift)));
 
        argw = (argw >> shift) & 0xfff;
 
        return push_inst(compiler, STRBI | type | RT(reg) | RN(tmp_reg) | ((sljit_ins)argw << 10));
    }
 
    if ((argw & ((1 << shift) - 1)) == 0) {
        if (argw >= 0) {
            if ((argw >> shift) <= 0xfff)
                return push_inst(compiler, STRBI | type | RT(reg) | RN(arg) | ((sljit_ins)argw << (10 - shift)));
 
            if (argw <= 0xffffff) {
                FAIL_IF(push_inst(compiler, ADDI | (1 << 22) | RD(tmp_reg) | RN(arg) | (((sljit_ins)argw >> 12) << 10)));
 
                argw = ((argw & 0xfff) >> shift);
                return push_inst(compiler, STRBI | type | RT(reg) | RN(tmp_reg) | ((sljit_ins)argw << 10));
            }
        } else if (argw < -256 && argw >= -0xfff000) {
            FAIL_IF(push_inst(compiler, SUBI | (1 << 22) | RD(tmp_reg) | RN(arg) | (((sljit_ins)(-argw + 0xfff) >> 12) << 10)));
            argw = ((0x1000 + argw) & 0xfff) >> shift;
            return push_inst(compiler, STRBI | type | RT(reg) | RN(tmp_reg) | ((sljit_ins)argw << 10));
        }
    }
 
    if (argw <= 0xff && argw >= -0x100)
        return push_inst(compiler, STURBI | type | RT(reg) | RN(arg) | (((sljit_ins)argw & 0x1ff) << 12));
 
    if (((argw + 0x100) & 0xfff) <= 0x1ff && argw <= 0xfff0ff && argw >= -0xfff100) {
        if (argw >= 0) {
            if (argw & 0x100)
                argw += 0x1000;
 
            FAIL_IF(push_inst(compiler, ADDI | (1 << 22) | RD(tmp_reg) | RN(arg) | (((sljit_ins)argw >> 12) << 10)));
            return push_inst(compiler, STURBI | type | RT(reg) | RN(tmp_reg) | (((sljit_ins)argw & 0x1ff) << 12));
        } else {
            if (!(argw & 0x100))
                argw -= 0x1000;
 
            FAIL_IF(push_inst(compiler, SUBI | (1 << 22) | RD(tmp_reg) | RN(arg) | (((sljit_ins)-argw >> 12) << 10)));
            return push_inst(compiler, STURBI | type | RT(reg) | RN(tmp_reg) | (((sljit_ins)argw & 0x1ff) << 12));
        }
    }
 
    FAIL_IF(load_immediate(compiler, tmp_reg, argw));
 
    return push_inst(compiler, STRB | type | RT(reg) | RN(arg) | RM(tmp_reg));
}
 
/* --------------------------------------------------------------------- */
/*  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 prev, fprev, saved_regs_size, i, tmp;
    sljit_s32 saved_arg_count = SLJIT_KEPT_SAVEDS_COUNT(options);
    sljit_ins offs;
 
    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);
 
    saved_regs_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds - saved_arg_count, 2);
    saved_regs_size += GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, f64);
 
    local_size = (local_size + saved_regs_size + 0xf) & ~0xf;
    compiler->local_size = local_size;
 
    if (local_size <= 512) {
        FAIL_IF(push_inst(compiler, STP_PRE | RT(TMP_FP) | RT2(TMP_LR)
            | RN(SLJIT_SP) | (sljit_ins)((-(local_size >> 3) & 0x7f) << 15)));
        offs = (sljit_ins)(local_size - 2 * SSIZE_OF(sw)) << (15 - 3);
        local_size = 0;
    } else {
        saved_regs_size = ((saved_regs_size - 2 * SSIZE_OF(sw)) + 0xf) & ~0xf;
 
        FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | ((sljit_ins)saved_regs_size << 10)));
        offs = (sljit_ins)(saved_regs_size - 2 * SSIZE_OF(sw)) << (15 - 3);
        local_size -= saved_regs_size;
        SLJIT_ASSERT(local_size > 0);
    }
 
    prev = -1;
 
    tmp = SLJIT_S0 - saveds;
    for (i = SLJIT_S0 - saved_arg_count; i > tmp; i--) {
        if (prev == -1) {
            prev = i;
            continue;
        }
        FAIL_IF(push_inst(compiler, STP | RT(prev) | RT2(i) | RN(SLJIT_SP) | offs));
        offs -= (sljit_ins)2 << 15;
        prev = -1;
    }
 
    for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
        if (prev == -1) {
            prev = i;
            continue;
        }
        FAIL_IF(push_inst(compiler, STP | RT(prev) | RT2(i) | RN(SLJIT_SP) | offs));
        offs -= (sljit_ins)2 << 15;
        prev = -1;
    }
 
    fprev = -1;
 
    tmp = SLJIT_FS0 - fsaveds;
    for (i = SLJIT_FS0; i > tmp; i--) {
        if (fprev == -1) {
            fprev = i;
            continue;
        }
        FAIL_IF(push_inst(compiler, STP_F64 | VT(fprev) | VT2(i) | RN(SLJIT_SP) | offs));
        offs -= (sljit_ins)2 << 15;
        fprev = -1;
    }
 
    for (i = fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) {
        if (fprev == -1) {
            fprev = i;
            continue;
        }
        FAIL_IF(push_inst(compiler, STP_F64 | VT(fprev) | VT2(i) | RN(SLJIT_SP) | offs));
        offs -= (sljit_ins)2 << 15;
        fprev = -1;
    }
 
    if (fprev != -1)
        FAIL_IF(push_inst(compiler, STRI_F64 | VT(fprev) | RN(SLJIT_SP) | (offs >> 5) | (1 << 10)));
 
    if (prev != -1)
        FAIL_IF(push_inst(compiler, STRI | RT(prev) | RN(SLJIT_SP) | (offs >> 5) | ((fprev == -1) ? (1 << 10) : 0)));
 
 
#ifdef _WIN32
    if (local_size > 4096)
        FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | (1 << 10) | (1 << 22)));
#endif /* _WIN32 */
 
    if (!(options & SLJIT_ENTER_REG_ARG)) {
        arg_types >>= SLJIT_ARG_SHIFT;
        saved_arg_count = 0;
        tmp = SLJIT_R0;
 
        while (arg_types) {
            if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64) {
                if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
                    FAIL_IF(push_inst(compiler, MOV | RD(SLJIT_S0 - saved_arg_count) | RM(tmp)));
                    saved_arg_count++;
                }
                tmp++;
            }
            arg_types >>= SLJIT_ARG_SHIFT;
        }
    }
 
#ifdef _WIN32
    if (local_size > 4096) {
        if (local_size < 4 * 4096) {
            /* No need for a loop. */
 
            if (local_size >= 2 * 4096) {
                if (local_size >= 3 * 4096) {
                    FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(SLJIT_SP)));
                    FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | (1 << 10) | (1 << 22)));
                }
 
                FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(SLJIT_SP)));
                FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | (1 << 10) | (1 << 22)));
            }
        }
        else {
            FAIL_IF(push_inst(compiler, MOVZ | RD(TMP_REG1) | ((((sljit_ins)local_size >> 12) - 1) << 5)));
            FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(SLJIT_SP)));
            FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | (1 << 10) | (1 << 22)));
            FAIL_IF(push_inst(compiler, SUBI | (1 << 29) | RD(TMP_REG1) | RN(TMP_REG1) | (1 << 10)));
            FAIL_IF(push_inst(compiler, B_CC | ((((sljit_ins) -3) & 0x7ffff) << 5) | 0x1 /* not-equal */));
        }
 
        local_size &= 0xfff;
 
        if (local_size > 0)
            FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(SLJIT_SP)));
        else
            FAIL_IF(push_inst(compiler, STP | RT(TMP_FP) | RT2(TMP_LR) | RN(SLJIT_SP)));
    }
 
    if (local_size > 0) {
        if (local_size <= 512)
            FAIL_IF(push_inst(compiler, STP_PRE | RT(TMP_FP) | RT2(TMP_LR)
                | RN(SLJIT_SP) | (sljit_ins)((-(local_size >> 3) & 0x7f) << 15)));
        else {
            if (local_size >= 4096)
                local_size = (1 << (22 - 10));
 
            FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | ((sljit_ins)local_size << 10)));
            FAIL_IF(push_inst(compiler, STP | RT(TMP_FP) | RT2(TMP_LR) | RN(SLJIT_SP)));
        }
    }
 
#else /* !_WIN32 */
 
    /* The local_size does not include saved registers size. */
    if (local_size != 0) {
        if (local_size > 0xfff) {
            FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | (((sljit_ins)local_size >> 12) << 10) | (1 << 22)));
            local_size &= 0xfff;
        }
 
        if (local_size > 512 || local_size == 0) {
            if (local_size != 0)
                FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | ((sljit_ins)local_size << 10)));
 
            FAIL_IF(push_inst(compiler, STP | RT(TMP_FP) | RT2(TMP_LR) | RN(SLJIT_SP)));
        } else
            FAIL_IF(push_inst(compiler, STP_PRE | RT(TMP_FP) | RT2(TMP_LR)
                | RN(SLJIT_SP) | (sljit_ins)((-(local_size >> 3) & 0x7f) << 15)));
    }
 
#endif /* _WIN32 */
 
    return push_inst(compiler, ADDI | RD(TMP_FP) | RN(SLJIT_SP) | (0 << 10));
}
 
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 saved_regs_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);
 
    saved_regs_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds - SLJIT_KEPT_SAVEDS_COUNT(options), 2);
    saved_regs_size += GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, f64);
 
    compiler->local_size = (local_size + saved_regs_size + 0xf) & ~0xf;
    return SLJIT_SUCCESS;
}
 
static sljit_s32 emit_stack_frame_release(struct sljit_compiler *compiler, sljit_s32 is_return_to)
{
    sljit_s32 local_size, prev, fprev, i, tmp;
    sljit_ins offs;
 
    local_size = compiler->local_size;
 
    if (!is_return_to) {
        if (local_size > 512 && local_size <= 512 + 496) {
            FAIL_IF(push_inst(compiler, LDP_POST | RT(TMP_FP) | RT2(TMP_LR)
                | RN(SLJIT_SP) | ((sljit_ins)(local_size - 512) << (15 - 3))));
            local_size = 512;
        } else
            FAIL_IF(push_inst(compiler, LDP | RT(TMP_FP) | RT2(TMP_LR) | RN(SLJIT_SP)));
    } else {
        if (local_size > 512 && local_size <= 512 + 248) {
            FAIL_IF(push_inst(compiler, LDRI_POST | RT(TMP_FP) | RN(SLJIT_SP) | ((sljit_ins)(local_size - 512) << 12)));
            local_size = 512;
        } else
            FAIL_IF(push_inst(compiler, LDRI | RT(TMP_FP) | RN(SLJIT_SP) | 0));
    }
 
    if (local_size > 512) {
        local_size -= 512;
        if (local_size > 0xfff) {
            FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(SLJIT_SP)
                | (((sljit_ins)local_size >> 12) << 10) | (1 << 22)));
            local_size &= 0xfff;
        }
 
        FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(SLJIT_SP) | ((sljit_ins)local_size << 10)));
        local_size = 512;
    }
 
    offs = (sljit_ins)(local_size - 2 * SSIZE_OF(sw)) << (15 - 3);
    prev = -1;
 
    tmp = SLJIT_S0 - compiler->saveds;
    for (i = SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options); i > tmp; i--) {
        if (prev == -1) {
            prev = i;
            continue;
        }
        FAIL_IF(push_inst(compiler, LDP | RT(prev) | RT2(i) | RN(SLJIT_SP) | offs));
        offs -= (sljit_ins)2 << 15;
        prev = -1;
    }
 
    for (i = compiler->scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
        if (prev == -1) {
            prev = i;
            continue;
        }
        FAIL_IF(push_inst(compiler, LDP | RT(prev) | RT2(i) | RN(SLJIT_SP) | offs));
        offs -= (sljit_ins)2 << 15;
        prev = -1;
    }
 
    fprev = -1;
 
    tmp = SLJIT_FS0 - compiler->fsaveds;
    for (i = SLJIT_FS0; i > tmp; i--) {
        if (fprev == -1) {
            fprev = i;
            continue;
        }
        FAIL_IF(push_inst(compiler, LDP_F64 | VT(fprev) | VT2(i) | RN(SLJIT_SP) | offs));
        offs -= (sljit_ins)2 << 15;
        fprev = -1;
    }
 
    for (i = compiler->fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) {
        if (fprev == -1) {
            fprev = i;
            continue;
        }
        FAIL_IF(push_inst(compiler, LDP_F64 | VT(fprev) | VT2(i) | RN(SLJIT_SP) | offs));
        offs -= (sljit_ins)2 << 15;
        fprev = -1;
    }
 
    if (fprev != -1)
        FAIL_IF(push_inst(compiler, LDRI_F64 | VT(fprev) | RN(SLJIT_SP) | (offs >> 5) | (1 << 10)));
 
    if (prev != -1)
        FAIL_IF(push_inst(compiler, LDRI | RT(prev) | RN(SLJIT_SP) | (offs >> 5) | ((fprev == -1) ? (1 << 10) : 0)));
 
    /* This and the next call/jump instruction can be executed parallelly. */
    return push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(SLJIT_SP) | (sljit_ins)(local_size << 10));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_void(struct sljit_compiler *compiler)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_return_void(compiler));
 
    FAIL_IF(emit_stack_frame_release(compiler, 0));
 
    return push_inst(compiler, RET | RN(TMP_LR));
}
 
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) {
        ADJUST_LOCAL_OFFSET(src, srcw);
        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_inst(compiler, MOV | RD(TMP_REG1) | RM(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                                                            */
/* --------------------------------------------------------------------- */
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
{
    sljit_ins inv_bits = (op & SLJIT_32) ? W_OP : 0;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op0(compiler, op));
 
    op = GET_OPCODE(op);
    switch (op) {
    case SLJIT_BREAKPOINT:
        return push_inst(compiler, BRK);
    case SLJIT_NOP:
        return push_inst(compiler, NOP);
    case SLJIT_LMUL_UW:
    case SLJIT_LMUL_SW:
        FAIL_IF(push_inst(compiler, MOV | RD(TMP_REG1) | RM(SLJIT_R0)));
        FAIL_IF(push_inst(compiler, MADD | RD(SLJIT_R0) | RN(SLJIT_R0) | RM(SLJIT_R1) | RT2(TMP_ZERO)));
        return push_inst(compiler, (op == SLJIT_LMUL_UW ? UMULH : SMULH) | RD(SLJIT_R1) | RN(TMP_REG1) | RM(SLJIT_R1));
    case SLJIT_DIVMOD_UW:
    case SLJIT_DIVMOD_SW:
        FAIL_IF(push_inst(compiler, (MOV ^ inv_bits) | RD(TMP_REG1) | RM(SLJIT_R0)));
        FAIL_IF(push_inst(compiler, ((op == SLJIT_DIVMOD_UW ? UDIV : SDIV) ^ inv_bits) | RD(SLJIT_R0) | RN(SLJIT_R0) | RM(SLJIT_R1)));
        FAIL_IF(push_inst(compiler, (MADD ^ inv_bits) | RD(SLJIT_R1) | RN(SLJIT_R0) | RM(SLJIT_R1) | RT2(TMP_ZERO)));
        return push_inst(compiler, (SUB ^ inv_bits) | RD(SLJIT_R1) | RN(TMP_REG1) | RM(SLJIT_R1));
    case SLJIT_DIV_UW:
    case SLJIT_DIV_SW:
        return push_inst(compiler, ((op == SLJIT_DIV_UW ? UDIV : SDIV) ^ inv_bits) | RD(SLJIT_R0) | RN(SLJIT_R0) | RM(SLJIT_R1));
    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, mem_flags;
    sljit_s32 op_flags = GET_ALL_FLAGS(op);
 
    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_REG1;
 
    op = GET_OPCODE(op);
    if (op >= SLJIT_MOV && op <= SLJIT_MOV_P) {
        /* Both operands are registers. */
        if (FAST_IS_REG(dst) && FAST_IS_REG(src))
            return emit_op_imm(compiler, op | ((op_flags & SLJIT_32) ? INT_OP : 0), dst_r, TMP_REG1, src);
 
        switch (op) {
        case SLJIT_MOV:
        case SLJIT_MOV_P:
            mem_flags = WORD_SIZE;
            break;
        case SLJIT_MOV_U8:
            mem_flags = BYTE_SIZE;
            if (src == SLJIT_IMM)
                srcw = (sljit_u8)srcw;
            break;
        case SLJIT_MOV_S8:
            mem_flags = BYTE_SIZE | SIGNED;
            if (src == SLJIT_IMM)
                srcw = (sljit_s8)srcw;
            break;
        case SLJIT_MOV_U16:
            mem_flags = HALF_SIZE;
            if (src == SLJIT_IMM)
                srcw = (sljit_u16)srcw;
            break;
        case SLJIT_MOV_S16:
            mem_flags = HALF_SIZE | SIGNED;
            if (src == SLJIT_IMM)
                srcw = (sljit_s16)srcw;
            break;
        case SLJIT_MOV_U32:
            mem_flags = INT_SIZE;
            if (src == SLJIT_IMM)
                srcw = (sljit_u32)srcw;
            break;
        case SLJIT_MOV_S32:
        case SLJIT_MOV32:
            mem_flags = INT_SIZE | SIGNED;
            if (src == SLJIT_IMM)
                srcw = (sljit_s32)srcw;
            break;
        default:
            SLJIT_UNREACHABLE();
            mem_flags = 0;
            break;
        }
 
        if (src == SLJIT_IMM)
            FAIL_IF(emit_op_imm(compiler, SLJIT_MOV | ARG2_IMM, dst_r, TMP_REG1, srcw));
        else if (!(src & SLJIT_MEM))
            dst_r = src;
        else
            FAIL_IF(emit_op_mem(compiler, mem_flags, dst_r, src, srcw, TMP_REG2));
 
        if (dst & SLJIT_MEM)
            return emit_op_mem(compiler, mem_flags | STORE, dst_r, dst, dstw, TMP_REG2);
        return SLJIT_SUCCESS;
    }
 
    flags = HAS_FLAGS(op_flags) ? SET_FLAGS : 0;
 
    switch (op) {
    case SLJIT_REV_U16:
    case SLJIT_REV_S16:
        mem_flags = HALF_SIZE;
        break;
    case SLJIT_REV_U32:
    case SLJIT_REV_S32:
        mem_flags = INT_SIZE;
        break;
    default:
        mem_flags = WORD_SIZE;
 
        if (op_flags & SLJIT_32) {
            flags |= INT_OP;
            mem_flags = INT_SIZE;
        }
        break;
    }
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, mem_flags, TMP_REG2, src, srcw, TMP_REG2));
        src = TMP_REG2;
    }
 
    emit_op_imm(compiler, flags | op, dst_r, TMP_REG1, src);
 
    if (SLJIT_UNLIKELY(dst & SLJIT_MEM))
        return emit_op_mem(compiler, mem_flags | STORE, dst_r, dst, dstw, TMP_REG2);
    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_r, flags, mem_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_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
    flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
    mem_flags = WORD_SIZE;
 
    if (op & SLJIT_32) {
        flags |= INT_OP;
        mem_flags = INT_SIZE;
    }
 
    if (dst == TMP_REG2)
        flags |= UNUSED_RETURN;
 
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, mem_flags, TMP_REG1, src1, src1w, TMP_REG1));
        src1 = TMP_REG1;
    }
 
    if (src2 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, mem_flags, TMP_REG2, src2, src2w, TMP_REG2));
        src2 = TMP_REG2;
    }
 
    if (src1 == SLJIT_IMM)
        flags |= ARG1_IMM;
    else
        src1w = src1;
 
    if (src2 == SLJIT_IMM)
        flags |= ARG2_IMM;
    else
        src2w = src2;
 
    emit_op_imm(compiler, flags | GET_OPCODE(op), dst_r, src1w, src2w);
 
    if (dst & SLJIT_MEM)
        return emit_op_mem(compiler, mem_flags | STORE, dst_r, dst, dstw, TMP_REG2);
    return SLJIT_SUCCESS;
}
 
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_REG2, 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_ins inv_bits, imm;
    sljit_s32 is_left;
    sljit_sw mask;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_shift_into(compiler, op, dst_reg, src1_reg, src2_reg, src3, src3w));
 
    is_left = (GET_OPCODE(op) == SLJIT_SHL || GET_OPCODE(op) == SLJIT_MSHL);
 
    if (src1_reg == src2_reg) {
        SLJIT_SKIP_CHECKS(compiler);
        return sljit_emit_op2(compiler, (is_left ? SLJIT_ROTL : SLJIT_ROTR) | (op & SLJIT_32), dst_reg, 0, src1_reg, 0, src3, src3w);
    }
 
    ADJUST_LOCAL_OFFSET(src3, src3w);
 
    inv_bits = (op & SLJIT_32) ? W_OP : 0;
 
    if (src3 == SLJIT_IMM) {
        mask = inv_bits ? 0x1f : 0x3f;
        src3w &= mask;
 
        if (src3w == 0)
            return SLJIT_SUCCESS;
 
        if (is_left)
            src3w = (src3w ^ mask) + 1;
 
        return push_inst(compiler, (EXTR ^ (inv_bits | (inv_bits >> 9))) | RD(dst_reg)
            | RN(is_left ? src1_reg : src2_reg) | RM(is_left ? src2_reg : src1_reg) | ((sljit_ins)src3w << 10));
    }
 
    if (src3 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, inv_bits ? INT_SIZE : WORD_SIZE, TMP_REG2, src3, src3w, TMP_REG2));
        src3 = TMP_REG2;
    } else if (dst_reg == src3) {
        FAIL_IF(push_inst(compiler, MOV | RD(TMP_REG2) | RM(src3)));
        src3 = TMP_REG2;
    }
 
    FAIL_IF(push_inst(compiler, ((is_left ? LSLV : LSRV) ^ inv_bits) | RD(dst_reg) | RN(src1_reg) | RM(src3)));
 
    if (!(op & SLJIT_SHIFT_INTO_NON_ZERO)) {
        /* Shift left/right by 1. */
        if (is_left)
            imm = (sljit_ins)(inv_bits ? ((1 << 16) | (31 << 10)) : ((1 << 16) | (63 << 10) | (1 << 22)));
        else
            imm = (sljit_ins)(inv_bits ? ((31 << 16) | (30 << 10)) : ((63 << 16) | (62 << 10) | (1 << 22)));
 
        FAIL_IF(push_inst(compiler, (UBFM ^ (inv_bits | (inv_bits >> 9))) | RD(TMP_REG1) | RN(src2_reg) | imm));
 
        /* Set imm to mask. */
        imm = (sljit_ins)(inv_bits ? (4 << 10) : ((5 << 10) | (1 << 22)));
        FAIL_IF(push_inst(compiler, (EORI ^ inv_bits) | RD(TMP_REG2) | RN(src3) | imm));
 
        src2_reg = TMP_REG1;
    } else
        FAIL_IF(push_inst(compiler, (SUB ^ inv_bits) | RD(TMP_REG2) | RN(TMP_ZERO) | RM(src3)));
 
    FAIL_IF(push_inst(compiler, ((is_left ? LSRV : LSLV) ^ inv_bits) | RD(TMP_REG1) | RN(src2_reg) | RM(TMP_REG2)));
    return push_inst(compiler, (ORR ^ inv_bits) | RD(dst_reg) | RN(dst_reg) | RM(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:
        if (FAST_IS_REG(src))
            FAIL_IF(push_inst(compiler, MOV | RD(TMP_LR) | RM(src)));
        else
            FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_LR, src, srcw, TMP_REG1));
 
        return push_inst(compiler, RET | RN(TMP_LR));
    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:
        SLJIT_ASSERT(reg_map[1] == 0 && reg_map[3] == 2 && reg_map[5] == 4);
 
        /* The reg_map[op] should provide the appropriate constant. */
        if (op == SLJIT_PREFETCH_L1)
            op = 1;
        else if (op == SLJIT_PREFETCH_L2)
            op = 3;
        else if (op == SLJIT_PREFETCH_L3)
            op = 5;
        else
            op = 2;
 
        /* Signed word sized load is the prefetch instruction. */
        return emit_op_mem(compiler, WORD_SIZE | SIGNED, op, 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 dst_r = TMP_LR;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op_dst(compiler, op, dst, dstw));
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    switch (op) {
    case SLJIT_FAST_ENTER:
        if (FAST_IS_REG(dst))
            return push_inst(compiler, MOV | RD(dst) | RM(TMP_LR));
        break;
    case SLJIT_GET_RETURN_ADDRESS:
        dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, dst_r, SLJIT_MEM1(SLJIT_SP), 0x8, TMP_REG2));
        break;
    }
 
    if (dst & SLJIT_MEM)
        return emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw, TMP_REG2);
 
    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 && type != SLJIT_SIMD_REG_128)
        return -1;
 
    return freg_map[reg];
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
    void *instruction, sljit_u32 size)
{
    SLJIT_UNUSED_ARG(size);
    CHECK_ERROR();
    CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
 
    return push_inst(compiler, *(sljit_ins*)instruction);
}
 
/* --------------------------------------------------------------------- */
/*  Floating point operators                                             */
/* --------------------------------------------------------------------- */
 
static sljit_s32 emit_fop_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
{
    sljit_u32 shift = MEM_SIZE_SHIFT(flags);
    sljit_ins type = (shift << 30);
 
    SLJIT_ASSERT(arg & SLJIT_MEM);
 
    if (!(flags & STORE))
        type |= 0x00400000;
 
    if (arg & OFFS_REG_MASK) {
        argw &= 3;
        if (argw == 0 || argw == shift)
            return push_inst(compiler, STR_FR | type | VT(reg)
                | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | (argw ? (1 << 12) : 0));
 
        FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG2) | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | ((sljit_ins)argw << 10)));
        return push_inst(compiler, STR_FI | type | VT(reg) | RN(TMP_REG2));
    }
 
    arg &= REG_MASK;
 
    if (!arg) {
        FAIL_IF(load_immediate(compiler, TMP_REG2, argw & ~(0xfff << shift)));
 
        argw = (argw >> shift) & 0xfff;
 
        return push_inst(compiler, STR_FI | type | VT(reg) | RN(TMP_REG2) | ((sljit_ins)argw << 10));
    }
 
    if (argw >= 0 && (argw & ((1 << shift) - 1)) == 0) {
        if ((argw >> shift) <= 0xfff)
            return push_inst(compiler, STR_FI | type | VT(reg) | RN(arg) | ((sljit_ins)argw << (10 - shift)));
 
        if (argw <= 0xffffff) {
            FAIL_IF(push_inst(compiler, ADDI | (1 << 22) | RD(TMP_REG2) | RN(arg) | (((sljit_ins)argw >> 12) << 10)));
 
            argw = ((argw & 0xfff) >> shift);
            return push_inst(compiler, STR_FI | type | VT(reg) | RN(TMP_REG2) | ((sljit_ins)argw << 10));
        }
    }
 
    if (argw <= 255 && argw >= -256)
        return push_inst(compiler, STUR_FI | type | VT(reg) | RN(arg) | (((sljit_ins)argw & 0x1ff) << 12));
 
    FAIL_IF(load_immediate(compiler, TMP_REG2, argw));
    return push_inst(compiler, STR_FR | type | VT(reg) | RN(arg) | RM(TMP_REG2));
}
 
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)
{
    sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
    sljit_ins inv_bits = (op & SLJIT_32) ? (1 << 22) : 0;
 
    if (GET_OPCODE(op) == SLJIT_CONV_S32_FROM_F64)
        inv_bits |= W_OP;
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_32) ? INT_SIZE : WORD_SIZE, TMP_FREG1, src, srcw));
        src = TMP_FREG1;
    }
 
    FAIL_IF(push_inst(compiler, (FCVTZS ^ inv_bits) | RD(dst_r) | VN(src)));
 
    if (dst & SLJIT_MEM)
        return emit_op_mem(compiler, ((GET_OPCODE(op) == SLJIT_CONV_S32_FROM_F64) ? INT_SIZE : WORD_SIZE) | STORE, TMP_REG1, dst, dstw, TMP_REG2);
    return SLJIT_SUCCESS;
}
 
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 (src & SLJIT_MEM) {
        emit_op_mem(compiler, (ins & W_OP) ? WORD_SIZE : INT_SIZE, TMP_REG1, src, srcw, TMP_REG1);
        src = TMP_REG1;
    } else if (src == SLJIT_IMM) {
        FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
        src = TMP_REG1;
    }
 
    FAIL_IF(push_inst(compiler, ins | VD(dst_r) | RN(src)));
 
    if (dst & SLJIT_MEM)
        return emit_fop_mem(compiler, ((ins & (1 << 22)) ? WORD_SIZE : INT_SIZE) | STORE, 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)
{
    sljit_ins inv_bits = (op & SLJIT_32) ? (1 << 22) : 0;
 
    if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32) {
        inv_bits |= W_OP;
 
        if (src == SLJIT_IMM)
            srcw = (sljit_s32)srcw;
    }
 
    return sljit_emit_fop1_conv_f64_from_w(compiler, SCVTF ^ inv_bits, 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)
{
    sljit_ins inv_bits = (op & SLJIT_32) ? (1 << 22) : 0;
 
    if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_U32) {
        inv_bits |= W_OP;
 
        if (src == SLJIT_IMM)
            srcw = (sljit_u32)srcw;
    }
 
    return sljit_emit_fop1_conv_f64_from_w(compiler, UCVTF ^ inv_bits, 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)
{
    sljit_s32 mem_flags = (op & SLJIT_32) ? INT_SIZE : WORD_SIZE;
    sljit_ins inv_bits = (op & SLJIT_32) ? (1 << 22) : 0;
 
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, mem_flags, TMP_FREG1, src1, src1w));
        src1 = TMP_FREG1;
    }
 
    if (src2 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, mem_flags, TMP_FREG2, src2, src2w));
        src2 = TMP_FREG2;
    }
 
    FAIL_IF(push_inst(compiler, (FCMP ^ inv_bits) | VN(src1) | VM(src2)));
 
    if (GET_FLAG_TYPE(op) != SLJIT_UNORDERED_OR_EQUAL)
        return SLJIT_SUCCESS;
 
    FAIL_IF(push_inst(compiler, CSINC | (0x0 << 12) | RD(TMP_REG1) | RN(TMP_ZERO) | RM(TMP_ZERO)));
    return push_inst(compiler, CCMPI | (0x0 << 16) | (0x7 << 12) | RN(TMP_REG1) | 0x4);
}
 
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, mem_flags = (op & SLJIT_32) ? INT_SIZE : WORD_SIZE;
    sljit_ins inv_bits;
 
    CHECK_ERROR();
 
    SLJIT_COMPILE_ASSERT((INT_SIZE ^ 0x1) == WORD_SIZE, must_be_one_bit_difference);
    SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
 
    inv_bits = (op & SLJIT_32) ? (1 << 22) : 0;
    dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32) ? (mem_flags ^ 0x1) : mem_flags, 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_inst(compiler, (FMOV ^ inv_bits) | VD(dst_r) | VN(src)));
            else
                dst_r = src;
        }
        break;
    case SLJIT_NEG_F64:
        FAIL_IF(push_inst(compiler, (FNEG ^ inv_bits) | VD(dst_r) | VN(src)));
        break;
    case SLJIT_ABS_F64:
        FAIL_IF(push_inst(compiler, (FABS ^ inv_bits) | VD(dst_r) | VN(src)));
        break;
    case SLJIT_CONV_F64_FROM_F32:
        FAIL_IF(push_inst(compiler, FCVT | (sljit_ins)((op & SLJIT_32) ? (1 << 22) : (1 << 15)) | VD(dst_r) | VN(src)));
        break;
    }
 
    if (dst & SLJIT_MEM)
        return emit_fop_mem(compiler, mem_flags | STORE, 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, mem_flags = (op & SLJIT_32) ? INT_SIZE : WORD_SIZE;
    sljit_ins inv_bits = (op & SLJIT_32) ? (1 << 22) : 0;
 
    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);
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, mem_flags, TMP_FREG1, src1, src1w));
        src1 = TMP_FREG1;
    }
    if (src2 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, mem_flags, TMP_FREG2, src2, src2w));
        src2 = TMP_FREG2;
    }
 
    switch (GET_OPCODE(op)) {
    case SLJIT_ADD_F64:
        FAIL_IF(push_inst(compiler, (FADD ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2)));
        break;
    case SLJIT_SUB_F64:
        FAIL_IF(push_inst(compiler, (FSUB ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2)));
        break;
    case SLJIT_MUL_F64:
        FAIL_IF(push_inst(compiler, (FMUL ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2)));
        break;
    case SLJIT_DIV_F64:
        FAIL_IF(push_inst(compiler, (FDIV ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2)));
        break;
    case SLJIT_COPYSIGN_F64:
        FAIL_IF(push_inst(compiler, (FMOV_R ^ ((op & SLJIT_32) ? (W_OP | (1 << 22)) : 0)) | VN(src2) | RD(TMP_REG1)));
        FAIL_IF(push_inst(compiler, (FABS ^ inv_bits) | VD(dst_r) | VN(src1)));
        FAIL_IF(push_inst(compiler, TBZ | ((op & SLJIT_32) ? 0 : ((sljit_ins)1 << 31)) | (0x1f << 19) | (2 << 5) | RT(TMP_REG1)));
        return push_inst(compiler, (FNEG ^ inv_bits) | VD(dst_r) | VN(dst_r));
    }
 
    if (!(dst & SLJIT_MEM))
        return SLJIT_SUCCESS;
    return emit_fop_mem(compiler, mem_flags | STORE, TMP_FREG1, dst, dstw);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset32(struct sljit_compiler *compiler,
    sljit_s32 freg, sljit_f32 value)
{
    sljit_u32 exp;
    union {
        sljit_u32 imm;
        sljit_f32 value;
    } u;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fset32(compiler, freg, value));
 
    u.value = value;
 
    if (u.imm == 0)
        return push_inst(compiler, (FMOV_R ^ (W_OP | (1 << 22))) | RN(TMP_ZERO) | VD(freg) | (1 << 16));
 
    if ((u.imm << (32 - 19)) == 0) {
        exp = (u.imm >> (23 + 2)) & 0x3f;
 
        if (exp == 0x20 || exp == 0x1f)
            return push_inst(compiler, (FMOV_I ^ (1 << 22)) | (sljit_ins)((((u.imm >> 24) & 0x80) | ((u.imm >> 19) & 0x7f)) << 13) | VD(freg));
    }
 
    FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_s32)u.imm));
    return push_inst(compiler, (FMOV_R ^ (W_OP | (1 << 22))) | RN(TMP_REG1) | VD(freg) | (1 << 16));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset64(struct sljit_compiler *compiler,
    sljit_s32 freg, sljit_f64 value)
{
    sljit_uw exp;
    union {
        sljit_uw imm;
        sljit_f64 value;
    } u;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fset64(compiler, freg, value));
 
    u.value = value;
 
    if (u.imm == 0)
        return push_inst(compiler, FMOV_R | RN(TMP_ZERO) | VD(freg) | (sljit_ins)1 << 16);
 
    if ((u.imm << (64 - 48)) == 0) {
        exp = (u.imm >> (52 + 2)) & 0x1ff;
 
        if (exp == 0x100 || exp == 0xff)
            return push_inst(compiler, FMOV_I | (sljit_ins)((((u.imm >> 56) & 0x80) | ((u.imm >> 48) & 0x7f)) << 13) | VD(freg));
    }
 
    FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_sw)u.imm));
    return push_inst(compiler, FMOV_R | RN(TMP_REG1) | VD(freg) | (1 << 16));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fcopy(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 freg, sljit_s32 reg)
{
    sljit_ins inst;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fcopy(compiler, op, freg, reg));
 
    if (GET_OPCODE(op) == SLJIT_COPY_TO_F64)
        inst = FMOV_R | RN(reg) | VD(freg) | (1 << 16);
    else
        inst = FMOV_R | VN(freg) | RD(reg);
 
    if (op & SLJIT_32)
        inst ^= W_OP | (1 << 22);
 
    return push_inst(compiler, inst);
}
 
/* --------------------------------------------------------------------- */
/*  Conditional instructions                                             */
/* --------------------------------------------------------------------- */
 
static sljit_ins 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 0x1;
 
    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 0x0;
 
    case SLJIT_CARRY:
        if (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_ADD)
            return 0x3;
        /* fallthrough */
 
    case SLJIT_LESS:
        return 0x2;
 
    case SLJIT_NOT_CARRY:
        if (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_ADD)
            return 0x2;
        /* fallthrough */
 
    case SLJIT_GREATER_EQUAL:
        return 0x3;
 
    case SLJIT_GREATER:
    case SLJIT_UNORDERED_OR_GREATER:
        return 0x9;
 
    case SLJIT_LESS_EQUAL:
    case SLJIT_F_LESS_EQUAL:
    case SLJIT_ORDERED_LESS_EQUAL:
        return 0x8;
 
    case SLJIT_SIG_LESS:
    case SLJIT_UNORDERED_OR_LESS:
        return 0xa;
 
    case SLJIT_SIG_GREATER_EQUAL:
    case SLJIT_F_GREATER_EQUAL:
    case SLJIT_ORDERED_GREATER_EQUAL:
        return 0xb;
 
    case SLJIT_SIG_GREATER:
    case SLJIT_F_GREATER:
    case SLJIT_ORDERED_GREATER:
        return 0xd;
 
    case SLJIT_SIG_LESS_EQUAL:
    case SLJIT_UNORDERED_OR_LESS_EQUAL:
        return 0xc;
 
    case SLJIT_OVERFLOW:
        if (!(compiler->status_flags_state & (SLJIT_CURRENT_FLAGS_ADD | SLJIT_CURRENT_FLAGS_SUB)))
            return 0x0;
        /* fallthrough */
 
    case SLJIT_UNORDERED:
        return 0x7;
 
    case SLJIT_NOT_OVERFLOW:
        if (!(compiler->status_flags_state & (SLJIT_CURRENT_FLAGS_ADD | SLJIT_CURRENT_FLAGS_SUB)))
            return 0x1;
        /* fallthrough */
 
    case SLJIT_ORDERED:
        return 0x6;
 
    case SLJIT_F_LESS:
    case SLJIT_ORDERED_LESS:
        return 0x5;
 
    case SLJIT_UNORDERED_OR_GREATER_EQUAL:
        return 0x4;
 
    default:
        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;
 
    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;
        PTR_FAIL_IF(push_inst(compiler, B_CC | (6 << 5) | get_cc(compiler, type)));
    } else if (type >= SLJIT_FAST_CALL)
        jump->flags |= IS_BL;
 
    jump->addr = compiler->size;
    PTR_FAIL_IF(push_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(TMP_REG2)));
 
    /* Maximum number of instructions required for generating a constant. */
    compiler->size += JUMP_MAX_SIZE - 1;
    return jump;
}
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 arg_types)
{
    SLJIT_UNUSED_ARG(arg_types);
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
 
    if (type & SLJIT_CALL_RETURN) {
        PTR_FAIL_IF(emit_stack_frame_release(compiler, 0));
        type = SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP);
    }
 
    SLJIT_SKIP_CHECKS(compiler);
    return sljit_emit_jump(compiler, type);
}
 
static SLJIT_INLINE struct sljit_jump* emit_cmp_to0(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 src, sljit_sw srcw)
{
    struct sljit_jump *jump;
    sljit_ins inv_bits = (type & SLJIT_32) ? W_OP : 0;
 
    SLJIT_ASSERT((type & 0xff) == SLJIT_EQUAL || (type & 0xff) == SLJIT_NOT_EQUAL);
    ADJUST_LOCAL_OFFSET(src, srcw);
 
    jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
    PTR_FAIL_IF(!jump);
    set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
    jump->flags |= IS_CBZ | IS_COND;
 
    if (src & SLJIT_MEM) {
        PTR_FAIL_IF(emit_op_mem(compiler, inv_bits ? INT_SIZE : WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
        src = TMP_REG1;
    }
    else if (src == SLJIT_IMM) {
        PTR_FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
        src = TMP_REG1;
    }
 
    SLJIT_ASSERT(FAST_IS_REG(src));
 
    if ((type & 0xff) == SLJIT_EQUAL)
        inv_bits |= 1 << 24;
 
    PTR_FAIL_IF(push_inst(compiler, (CBZ ^ inv_bits) | (6 << 5) | RT(src)));
    jump->addr = compiler->size;
    PTR_FAIL_IF(push_inst(compiler, BR | RN(TMP_REG2)));
 
    /* Maximum number of instructions required for generating a constant. */
    compiler->size += JUMP_MAX_SIZE - 1;
    return jump;
}
 
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));
 
    if (src != SLJIT_IMM) {
        if (src & SLJIT_MEM) {
            ADJUST_LOCAL_OFFSET(src, srcw);
            FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, src, srcw, TMP_REG2));
            src = TMP_REG2;
        }
        return push_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(src));
    }
 
    /* 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_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(TMP_REG2));
}
 
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)
{
    SLJIT_UNUSED_ARG(arg_types);
    CHECK_ERROR();
    CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw));
 
    if (src & SLJIT_MEM) {
        ADJUST_LOCAL_OFFSET(src, srcw);
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
        src = TMP_REG1;
    }
 
    if (type & SLJIT_CALL_RETURN) {
        if (src >= SLJIT_FIRST_SAVED_REG && src <= (SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options))) {
            FAIL_IF(push_inst(compiler, MOV | RD(TMP_REG1) | RM(src)));
            src = TMP_REG1;
        }
 
        FAIL_IF(emit_stack_frame_release(compiler, 0));
        type = SLJIT_JUMP;
    }
 
    SLJIT_SKIP_CHECKS(compiler);
    return sljit_emit_ijump(compiler, type, src, srcw);
}
 
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, src_r, flags, mem_flags;
    sljit_ins cc;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    cc = get_cc(compiler, type);
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
 
    if (GET_OPCODE(op) < SLJIT_ADD) {
        FAIL_IF(push_inst(compiler, CSINC | (cc << 12) | RD(dst_r) | RN(TMP_ZERO) | RM(TMP_ZERO)));
 
        if (dst & SLJIT_MEM) {
            mem_flags = (GET_OPCODE(op) == SLJIT_MOV ? WORD_SIZE : INT_SIZE) | STORE;
            return emit_op_mem(compiler, mem_flags, TMP_REG1, dst, dstw, TMP_REG2);
        }
 
        return SLJIT_SUCCESS;
    }
 
    flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
    mem_flags = WORD_SIZE;
 
    if (op & SLJIT_32) {
        flags |= INT_OP;
        mem_flags = INT_SIZE;
    }
 
    src_r = dst;
 
    if (dst & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, mem_flags, TMP_REG1, dst, dstw, TMP_REG1));
        src_r = TMP_REG1;
    }
 
    FAIL_IF(push_inst(compiler, CSINC | (cc << 12) | RD(TMP_REG2) | RN(TMP_ZERO) | RM(TMP_ZERO)));
    emit_op_imm(compiler, flags | GET_OPCODE(op), dst_r, src_r, TMP_REG2);
 
    if (dst & SLJIT_MEM)
        return emit_op_mem(compiler, mem_flags | STORE, TMP_REG1, dst, dstw, TMP_REG2);
    return SLJIT_SUCCESS;
}
 
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_ins inv_bits = (type & SLJIT_32) ? W_OP : 0;
    sljit_ins cc;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_select(compiler, type, dst_reg, src1, src1w, src2_reg));
 
    ADJUST_LOCAL_OFFSET(src1, src1w);
 
    if (src1 == SLJIT_IMM) {
        if (type & SLJIT_32)
            src1w = (sljit_s32)src1w;
        FAIL_IF(load_immediate(compiler, TMP_REG2, src1w));
        src1 = TMP_REG2;
    } else if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, src1, src1w, TMP_REG2));
        src1 = TMP_REG2;
    }
 
    cc = get_cc(compiler, type & ~SLJIT_32);
    return push_inst(compiler, (CSEL ^ inv_bits) | (cc << 12) | RD(dst_reg) | RN(src2_reg) | RM(src1));
}
 
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)
{
    sljit_ins inv_bits = (type & SLJIT_32) ? (1 << 22) : 0;
    sljit_ins cc;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fselect(compiler, type, dst_freg, src1, src1w, src2_freg));
 
    ADJUST_LOCAL_OFFSET(src1, src1w);
 
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_fop_mem(compiler, (type & SLJIT_32) ? INT_SIZE : WORD_SIZE, TMP_FREG2, src1, src1w));
        src1 = TMP_FREG2;
    }
 
    cc = get_cc(compiler, type & ~SLJIT_32);
    return push_inst(compiler, (FCSEL ^ inv_bits) | (cc << 12) | VD(dst_freg) | VN(src2_freg) | VM(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_u32 inst;
 
    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);
 
    ADJUST_LOCAL_OFFSET(mem, memw);
 
    if (!(mem & REG_MASK)) {
        FAIL_IF(load_immediate(compiler, TMP_REG1, memw & ~0x1f8));
 
        mem = SLJIT_MEM1(TMP_REG1);
        memw &= 0x1f8;
    } else if (mem & OFFS_REG_MASK) {
        FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG1) | RN(mem & REG_MASK) | RM(OFFS_REG(mem)) | ((sljit_ins)(memw & 0x3) << 10)));
 
        mem = SLJIT_MEM1(TMP_REG1);
        memw = 0;
    } else if ((memw & 0x7) != 0 || memw > 0x1f8 || memw < -0x200) {
        inst = ADDI;
 
        if (memw < 0) {
            /* Remains negative for integer min. */
            memw = -memw;
            inst = SUBI;
        } else if ((memw & 0x7) == 0 && memw <= 0x7ff0) {
            if (!(type & SLJIT_MEM_STORE) && (mem & REG_MASK) == REG_PAIR_FIRST(reg)) {
                FAIL_IF(push_inst(compiler, LDRI | RD(REG_PAIR_SECOND(reg)) | RN(mem & REG_MASK) | ((sljit_ins)memw << 7)));
                return push_inst(compiler, LDRI | RD(REG_PAIR_FIRST(reg)) | RN(mem & REG_MASK) | ((sljit_ins)(memw + 0x8) << 7));
            }
 
            inst = (type & SLJIT_MEM_STORE) ? STRI : LDRI;
 
            FAIL_IF(push_inst(compiler, inst | RD(REG_PAIR_FIRST(reg)) | RN(mem & REG_MASK) | ((sljit_ins)memw << 7)));
            return push_inst(compiler, inst | RD(REG_PAIR_SECOND(reg)) | RN(mem & REG_MASK) | ((sljit_ins)(memw + 0x8) << 7));
        }
 
        if ((sljit_uw)memw <= 0xfff) {
            FAIL_IF(push_inst(compiler, inst | RD(TMP_REG1) | RN(mem & REG_MASK) | ((sljit_ins)memw << 10)));
            memw = 0;
        } else if ((sljit_uw)memw <= 0xffffff) {
            FAIL_IF(push_inst(compiler, inst | (1 << 22) | RD(TMP_REG1) | RN(mem & REG_MASK) | (((sljit_ins)memw >> 12) << 10)));
 
            if ((memw & 0xe07) != 0) {
                FAIL_IF(push_inst(compiler, inst | RD(TMP_REG1) | RN(TMP_REG1) | (((sljit_ins)memw & 0xfff) << 10)));
                memw = 0;
            } else {
                memw &= 0xfff;
            }
        } else {
            FAIL_IF(load_immediate(compiler, TMP_REG1, memw));
            FAIL_IF(push_inst(compiler, (inst == ADDI ? ADD : SUB) | RD(TMP_REG1) | RN(mem & REG_MASK) | RM(TMP_REG1)));
            memw = 0;
        }
 
        mem = SLJIT_MEM1(TMP_REG1);
 
        if (inst == SUBI)
            memw = -memw;
    }
 
    SLJIT_ASSERT((memw & 0x7) == 0 && memw <= 0x1f8 && memw >= -0x200);
    return push_inst(compiler, ((type & SLJIT_MEM_STORE) ? STP : LDP) | RT(REG_PAIR_FIRST(reg)) | RT2(REG_PAIR_SECOND(reg)) | RN(mem & REG_MASK) | (sljit_ins)((memw & 0x3f8) << 12));
}
 
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_u32 sign = 0, inst;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_mem_update(compiler, type, reg, mem, memw));
 
    if ((mem & OFFS_REG_MASK) || (memw > 255 || memw < -256))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_MEM_SUPP)
        return SLJIT_SUCCESS;
 
    switch (type & 0xff) {
    case SLJIT_MOV:
    case SLJIT_MOV_P:
        inst = STURBI | (MEM_SIZE_SHIFT(WORD_SIZE) << 30) | 0x400;
        break;
    case SLJIT_MOV_S8:
        sign = 1;
        /* fallthrough */
    case SLJIT_MOV_U8:
        inst = STURBI | (MEM_SIZE_SHIFT(BYTE_SIZE) << 30) | 0x400;
        break;
    case SLJIT_MOV_S16:
        sign = 1;
        /* fallthrough */
    case SLJIT_MOV_U16:
        inst = STURBI | (MEM_SIZE_SHIFT(HALF_SIZE) << 30) | 0x400;
        break;
    case SLJIT_MOV_S32:
        sign = 1;
        /* fallthrough */
    case SLJIT_MOV_U32:
    case SLJIT_MOV32:
        inst = STURBI | (MEM_SIZE_SHIFT(INT_SIZE) << 30) | 0x400;
        break;
    default:
        SLJIT_UNREACHABLE();
        inst = STURBI | (MEM_SIZE_SHIFT(WORD_SIZE) << 30) | 0x400;
        break;
    }
 
    if (!(type & SLJIT_MEM_STORE))
        inst |= sign ? 0x00800000 : 0x00400000;
 
    if (!(type & SLJIT_MEM_POST))
        inst |= 0x800;
 
    return push_inst(compiler, inst | RT(reg) | RN(mem & REG_MASK) | (sljit_ins)((memw & 0x1ff) << 12));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fmem_update(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 freg,
    sljit_s32 mem, sljit_sw memw)
{
    sljit_u32 inst;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fmem_update(compiler, type, freg, mem, memw));
 
    if ((mem & OFFS_REG_MASK) || (memw > 255 || memw < -256))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_MEM_SUPP)
        return SLJIT_SUCCESS;
 
    inst = STUR_FI | 0x80000400;
 
    if (!(type & SLJIT_32))
        inst |= 0x40000000;
 
    if (!(type & SLJIT_MEM_STORE))
        inst |= 0x00400000;
 
    if (!(type & SLJIT_MEM_POST))
        inst |= 0x800;
 
    return push_inst(compiler, inst | VT(freg) | RN(mem & REG_MASK) | (sljit_ins)((memw & 0x1ff) << 12));
}
 
static sljit_s32 sljit_emit_simd_mem_offset(struct sljit_compiler *compiler, sljit_s32 *mem_ptr, sljit_sw memw)
{
    sljit_ins ins;
    sljit_s32 mem = *mem_ptr;
 
    if (SLJIT_UNLIKELY(mem & OFFS_REG_MASK)) {
        *mem_ptr = TMP_REG2;
        return push_inst(compiler, ADD | RD(TMP_REG2) | RN(mem & REG_MASK) | RM(OFFS_REG(mem)) | ((sljit_ins)(memw & 0x3) << 10));
    }
 
    if (!(mem & REG_MASK)) {
        *mem_ptr = TMP_REG2;
        return load_immediate(compiler, TMP_REG2, memw);
    }
 
    mem &= REG_MASK;
 
    if (memw == 0) {
        *mem_ptr = mem;
        return SLJIT_SUCCESS;
    }
 
    *mem_ptr = TMP_REG2;
 
    if (memw < -0xffffff || memw > 0xffffff) {
        FAIL_IF(load_immediate(compiler, TMP_REG2, memw));
        return push_inst(compiler, ADD | RD(TMP_REG2) | RN(TMP_REG2) | RM(mem));
    }
 
    ins = ADDI;
 
    if (memw < 0) {
        memw = -memw;
        ins = SUBI;
    }
 
    if (memw > 0xfff) {
        FAIL_IF(push_inst(compiler, ins | (1 << 22) | RD(TMP_REG2) | RN(mem) | ((sljit_ins)(memw >> 12) << 10)));
 
        memw &= 0xfff;
        if (memw == 0)
            return SLJIT_SUCCESS;
 
        mem = TMP_REG2;
    }
 
    return push_inst(compiler, ins | RD(TMP_REG2) | RN(mem) | ((sljit_ins)memw << 10));
}
 
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_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 (!(srcdst & SLJIT_MEM)) {
        if (type & SLJIT_SIMD_STORE)
            ins = VD(srcdst) | VN(freg) | VM(freg);
        else
            ins = VD(freg) | VN(srcdst) | VM(srcdst);
 
        if (reg_size == 4)
            ins |= (1 << 30);
 
        return push_inst(compiler, ORR_v | ins);
    }
 
    FAIL_IF(sljit_emit_simd_mem_offset(compiler, &srcdst, srcdstw));
 
    if (elem_size > 3)
        elem_size = 3;
 
    ins = (type & SLJIT_SIMD_STORE) ? ST1 : LD1;
 
    if (reg_size == 4)
        ins |= (1 << 30);
 
    return push_inst(compiler, ins | ((sljit_ins)elem_size << 10) | RN(srcdst) | VT(freg));
}
 
static sljit_ins simd_get_imm(sljit_s32 elem_size, sljit_uw value)
{
    sljit_ins result;
 
    if (elem_size > 2 && (sljit_u32)value == (value >> 32)) {
        elem_size = 2;
        value = (sljit_u32)value;
    }
 
    if (elem_size == 2 && (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 = 0xe000;
        break;
    case 1:
        SLJIT_ASSERT(value <= 0xffff);
        result = 0;
 
        while (1) {
            if (value <= 0xff) {
                result |= 0x8000;
                break;
            }
 
            if ((value & 0xff) == 0) {
                value >>= 8;
                result |= 0xa000;
                break;
            }
 
            if (result != 0)
                return ~(sljit_ins)0;
 
            value ^= (sljit_uw)0xffff;
            result = (1 << 29);
        }
        break;
    case 2:
        SLJIT_ASSERT(value <= 0xffffffff);
        result = 0;
 
        while (1) {
            if (value <= 0xff) {
                result |= 0x0000;
                break;
            }
 
            if ((value & ~(sljit_uw)0xff00) == 0) {
                value >>= 8;
                result |= 0x2000;
                break;
            }
 
            if ((value & ~(sljit_uw)0xff0000) == 0) {
                value >>= 16;
                result |= 0x4000;
                break;
            }
 
            if ((value & ~(sljit_uw)0xff000000) == 0) {
                value >>= 24;
                result |= 0x6000;
                break;
            }
 
            if ((value & (sljit_uw)0xff) == 0xff && (value >> 16) == 0) {
                value >>= 8;
                result |= 0xc000;
                break;
            }
 
            if ((value & (sljit_uw)0xffff) == 0xffff && (value >> 24) == 0) {
                value >>= 16;
                result |= 0xd000;
                break;
            }
 
            if (result != 0)
                return ~(sljit_ins)0;
 
            value ^= (sljit_uw)0xffffffff;
            result = (1 << 29);
        }
        break;
    default:
        return ~(sljit_ins)0;
    }
 
    return (((sljit_ins)value & 0x1f) << 5) | (((sljit_ins)value & 0xe0) << 11) | 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))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (src & SLJIT_MEM) {
        FAIL_IF(sljit_emit_simd_mem_offset(compiler, &src, srcw));
 
        ins = (sljit_ins)elem_size << 10;
 
        if (reg_size == 4)
            ins |= (sljit_ins)1 << 30;
 
        return push_inst(compiler, LD1R | ins | RN(src) | VT(freg));
    }
 
    ins = (sljit_ins)1 << (16 + elem_size);
 
    if (reg_size == 4)
        ins |= (sljit_ins)1 << 30;
 
    if (type & SLJIT_SIMD_FLOAT) {
        if (src == SLJIT_IMM)
            return push_inst(compiler, MOVI | (ins & ((sljit_ins)1 << 30)) | VD(freg));
 
        return push_inst(compiler, DUP_e | ins | VD(freg) | VN(src));
    }
 
    if (src == SLJIT_IMM) {
        if (elem_size < 3)
            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) {
            imm |= ins & ((sljit_ins)1 << 30);
 
            return push_inst(compiler, MOVI | imm | VD(freg));
        }
 
        FAIL_IF(load_immediate(compiler, TMP_REG2, srcw));
        src = TMP_REG2;
    }
 
    return push_inst(compiler, DUP_g | ins | VD(freg) | RN(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))
        return SLJIT_ERR_UNSUPPORTED;
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (type & SLJIT_SIMD_LANE_ZERO) {
        ins = (reg_size == 3) ? 0 : ((sljit_ins)1 << 30);
 
        if ((type & SLJIT_SIMD_FLOAT) && freg == srcdst) {
            FAIL_IF(push_inst(compiler, ORR_v | ins | VD(TMP_FREG1) | VN(freg) | VM(freg)));
            srcdst = TMP_FREG1;
            srcdstw = 0;
        }
 
        FAIL_IF(push_inst(compiler, MOVI | ins | VD(freg)));
    }
 
    if (srcdst & SLJIT_MEM) {
        FAIL_IF(sljit_emit_simd_mem_offset(compiler, &srcdst, srcdstw));
 
        if (elem_size == 3)
            ins = 0x8400;
        else if (elem_size == 0)
            ins = 0;
        else
            ins = (sljit_ins)0x2000 << elem_size;
 
        lane_index = lane_index << elem_size;
        ins |= (sljit_ins)(((lane_index & 0x8) << 27) | ((lane_index & 0x7) << 10));
 
        return push_inst(compiler, ((type & SLJIT_SIMD_STORE) ? ST1_s : LD1_s) | ins | RN(srcdst) | VT(freg));
    }
 
    if (type & SLJIT_SIMD_FLOAT) {
        if (type & SLJIT_SIMD_STORE)
            ins = INS_e | ((sljit_ins)1 << (16 + elem_size)) | ((sljit_ins)lane_index << (11 + elem_size)) | VD(srcdst) | VN(freg);
        else
            ins = INS_e | ((((sljit_ins)lane_index << 1) | 1) << (16 + elem_size)) | VD(freg) | VN(srcdst);
 
        return push_inst(compiler, ins);
    }
 
    if (srcdst == SLJIT_IMM) {
        if (elem_size < 3)
            srcdstw &= ((sljit_sw)1 << (((sljit_sw)1 << elem_size) << 3)) - 1;
 
        FAIL_IF(load_immediate(compiler, TMP_REG2, srcdstw));
        srcdst = TMP_REG2;
    }
 
    if (type & SLJIT_SIMD_STORE) {
        ins = RD(srcdst) | VN(freg);
 
        if ((type & SLJIT_SIMD_LANE_SIGNED) && (elem_size < 2 || (elem_size == 2 && !(type & SLJIT_32)))) {
            ins |= SMOV;
 
            if (!(type & SLJIT_32))
                ins |= (sljit_ins)1 << 30;
        } else
            ins |= UMOV;
    } else
        ins = INS | VD(freg) | RN(srcdst);
 
    if (elem_size == 3)
        ins |= (sljit_ins)1 << 30;
 
    return push_inst(compiler, ins | ((((sljit_ins)lane_index << 1) | 1) << (16 + elem_size)));
}
 
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;
 
    ins = (((sljit_ins)src_lane_index << 1) | 1) << (16 + elem_size);
 
    if (reg_size == 4)
        ins |= (sljit_ins)1 << 30;
 
    return push_inst(compiler, DUP_e | ins | VD(freg) | VN(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);
 
    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 (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_inst(compiler, LD1 | ((sljit_ins)elem_size << 10) | RN(src) | VT(freg)));
        else
            FAIL_IF(push_inst(compiler, LD1_s | ((sljit_ins)0x2000 << (reg_size - elem2_size + elem_size)) | RN(src) | VT(freg)));
        src = freg;
    }
 
    if (type & SLJIT_SIMD_FLOAT) {
        SLJIT_ASSERT(reg_size == 4);
        return push_inst(compiler, FCVTL | (1 << 22) | VD(freg) | VN(src));
    }
 
    do {
        FAIL_IF(push_inst(compiler, ((type & SLJIT_SIMD_EXTEND_SIGNED) ? SSHLL : USHLL)
            | ((sljit_ins)1 << (19 + elem_size)) | VD(freg) | VN(src)));
        src = freg;
    } while (++elem_size < elem2_size);
 
    return SLJIT_SUCCESS;
}
 
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 = 0x643219;
        ins = USHR | (0x9 << 16);
        break;
    case 1:
        imms = (reg_size == 4) ? 0x643219 : 0x6231;
        ins = USHR | (0x11 << 16);
        break;
    case 2:
        imms = (reg_size == 4) ? 0x6231 : 0x61;
        ins = USHR | (0x21 << 16);
        break;
    default:
        imms = 0x61;
        ins = USHR | (0x41 << 16);
        break;
    }
 
    if (reg_size == 4)
        ins |= (1 << 30);
 
    FAIL_IF(push_inst(compiler, ins | VD(TMP_FREG1) | VN(freg)));
 
    if (reg_size == 4 && elem_size > 0)
        FAIL_IF(push_inst(compiler, XTN | ((sljit_ins)(elem_size - 1) << 22) | VD(TMP_FREG1) | VN(TMP_FREG1)));
 
    if (imms >= 0x100) {
        ins = (reg_size == 4 && elem_size == 0) ? (1 << 30) : 0;
 
        do {
            FAIL_IF(push_inst(compiler, USRA | ins | ((imms & 0xff) << 16) | VD(TMP_FREG1) | VN(TMP_FREG1)));
            imms >>= 8;
        } while (imms >= 0x100);
    }
 
    FAIL_IF(push_inst(compiler, USRA | (1 << 30) | (imms << 16) | VD(TMP_FREG1) | VN(TMP_FREG1)));
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
    ins = (0x1 << 16);
 
    if (reg_size == 4 && elem_size == 0) {
        FAIL_IF(push_inst(compiler, INS_e | (0x3 << 16) | (0x8 << 11) | VD(TMP_FREG1) | VN(TMP_FREG1)));
        ins = (0x2 << 16);
    }
 
    FAIL_IF(push_inst(compiler, UMOV | ins | RD(dst_r) | VN(TMP_FREG1)));
 
    if (dst_r == TMP_REG2)
        return emit_op_mem(compiler, STORE | ((type & SLJIT_32) ? INT_SIZE : WORD_SIZE), TMP_REG2, dst, dstw, TMP_REG1);
 
    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 = AND_v;
        break;
    case SLJIT_SIMD_OP2_OR:
        ins = ORR_v;
        break;
    case SLJIT_SIMD_OP2_XOR:
        ins = EOR_v;
        break;
    }
 
    if (type & SLJIT_SIMD_TEST)
        return SLJIT_SUCCESS;
 
    if (reg_size == 4)
        ins |= (sljit_ins)1 << 30;
 
    return push_inst(compiler, ins | VD(dst_freg) | VN(src1_freg) | VM(src2_freg));
}
 
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));
 
#ifdef __ARM_FEATURE_ATOMICS
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV32:
    case SLJIT_MOV_U32:
        ins = LDR ^ (1 << 30);
        break;
    case SLJIT_MOV_U16:
        ins = LDRH;
        break;
    case SLJIT_MOV_U8:
        ins = LDRB;
        break;
    default:
        ins = LDR;
        break;
    }
#else /* !__ARM_FEATURE_ATOMICS */
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV32:
    case SLJIT_MOV_U32:
        ins = LDXR ^ (1 << 30);
        break;
    case SLJIT_MOV_U8:
        ins = LDXRB;
        break;
    case SLJIT_MOV_U16:
        ins = LDXRH;
        break;
    default:
        ins = LDXR;
        break;
    }
#endif /* ARM_FEATURE_ATOMICS */
    return push_inst(compiler, ins | RN(mem_reg) | RT(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;
    sljit_s32 tmp = temp_reg;
    sljit_ins cmp = 0;
    sljit_ins inv_bits = W_OP;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_atomic_store(compiler, op, src_reg, mem_reg, temp_reg));
 
#ifdef __ARM_FEATURE_ATOMICS
    if (op & SLJIT_SET_ATOMIC_STORED)
        cmp = (SUBS ^ W_OP) | RD(TMP_ZERO);
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV32:
    case SLJIT_MOV_U32:
        ins = CAS ^ (1 << 30);
        break;
    case SLJIT_MOV_U16:
        ins = CASH;
        break;
    case SLJIT_MOV_U8:
        ins = CASB;
        break;
    default:
        ins = CAS;
        inv_bits = 0;
        if (cmp)
            cmp ^= W_OP;
        break;
    }
 
    if (cmp) {
        FAIL_IF(push_inst(compiler, (MOV ^ inv_bits) | RM(temp_reg) | RD(TMP_REG1)));
        tmp = TMP_REG1;
    }
    FAIL_IF(push_inst(compiler, ins | RM(tmp) | RN(mem_reg) | RD(src_reg)));
    if (!cmp)
        return SLJIT_SUCCESS;
 
    FAIL_IF(push_inst(compiler, cmp | RM(tmp) | RN(temp_reg)));
    FAIL_IF(push_inst(compiler, (CSET ^ inv_bits) | RD(tmp)));
    return push_inst(compiler, cmp | RM(tmp) | RN(TMP_ZERO));
#else /* !__ARM_FEATURE_ATOMICS */
    SLJIT_UNUSED_ARG(tmp);
    SLJIT_UNUSED_ARG(inv_bits);
 
    if (op & SLJIT_SET_ATOMIC_STORED)
        cmp = (SUBI ^ W_OP) | (1 << 29);
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV32:
    case SLJIT_MOV_U32:
        ins = STXR ^ (1 << 30);
        break;
    case SLJIT_MOV_U8:
        ins = STXRB;
        break;
    case SLJIT_MOV_U16:
        ins = STXRH;
        break;
    default:
        ins = STXR;
        break;
    }
 
    FAIL_IF(push_inst(compiler, ins | RM(TMP_REG1) | RN(mem_reg) | RT(src_reg)));
    return cmp ? push_inst(compiler, cmp | RD(TMP_ZERO) | RN(TMP_REG1)) : SLJIT_SUCCESS;
#endif /* __ARM_FEATURE_ATOMICS */
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_local_base(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw offset)
{
    sljit_s32 dst_reg;
    sljit_ins ins;
 
    CHECK_ERROR();
    CHECK(check_sljit_get_local_base(compiler, dst, dstw, offset));
    ADJUST_LOCAL_OFFSET(SLJIT_MEM1(SLJIT_SP), offset);
 
    dst_reg = FAST_IS_REG(dst) ? dst : TMP_REG1;
 
    /* Not all instruction forms support accessing SP register. */
    if (offset <= 0xffffff && offset >= -0xffffff) {
        ins = ADDI;
        if (offset < 0) {
            offset = -offset;
            ins = SUBI;
        }
 
        if (offset <= 0xfff)
            FAIL_IF(push_inst(compiler, ins | RD(dst_reg) | RN(SLJIT_SP) | (sljit_ins)(offset << 10)));
        else {
            FAIL_IF(push_inst(compiler, ins | RD(dst_reg) | RN(SLJIT_SP) | (sljit_ins)((offset & 0xfff000) >> (12 - 10)) | (1 << 22)));
 
            offset &= 0xfff;
            if (offset != 0)
                FAIL_IF(push_inst(compiler, ins | RD(dst_reg) | RN(dst_reg) | (sljit_ins)(offset << 10)));
        }
    }
    else {
        FAIL_IF(load_immediate (compiler, dst_reg, offset));
        /* Add extended register form. */
        FAIL_IF(push_inst(compiler, ADDE | (0x3 << 13) | RD(dst_reg) | RN(SLJIT_SP) | RM(dst_reg)));
    }
 
    if (SLJIT_UNLIKELY(dst & SLJIT_MEM))
        return emit_op_mem(compiler, WORD_SIZE | STORE, dst_reg, dst, dstw, 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_imm64_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);
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
    PTR_FAIL_IF(push_inst(compiler, RD(dst_r)));
 
    jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
    PTR_FAIL_IF(!jump);
    set_mov_addr(jump, compiler, 1);
 
    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_ins* inst = (sljit_ins*)addr;
    sljit_u32 dst;
    SLJIT_UNUSED_ARG(executable_offset);
 
    SLJIT_UPDATE_WX_FLAGS(inst, inst + 4, 0);
 
    dst = inst[0] & 0x1f;
    SLJIT_ASSERT((inst[0] & 0xffe00000) == MOVZ && (inst[1] & 0xffe00000) == (MOVK | (1 << 21)));
    inst[0] = MOVZ | dst | (((sljit_u32)new_target & 0xffff) << 5);
    inst[1] = MOVK | dst | (((sljit_u32)(new_target >> 16) & 0xffff) << 5) | (1 << 21);
    inst[2] = MOVK | dst | (((sljit_u32)(new_target >> 32) & 0xffff) << 5) | (2 << 21);
    inst[3] = MOVK | dst | ((sljit_u32)(new_target >> 48) << 5) | (3 << 21);
 
    SLJIT_UPDATE_WX_FLAGS(inst, inst + 4, 1);
    inst = (sljit_ins *)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);
}