sljitNativeRISCV_common.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)
{
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    return "RISC-V-32" SLJIT_CPUINFO;
#else /* !SLJIT_CONFIG_RISCV_32 */
    return "RISC-V-64" SLJIT_CPUINFO;
#endif /* SLJIT_CONFIG_RISCV_32 */
}
 
/* Length of an instruction word
   Both for riscv-32 and riscv-64 */
typedef sljit_u32 sljit_ins;
 
#define TMP_REG1    (SLJIT_NUMBER_OF_REGISTERS + 2)
#define TMP_REG2    (SLJIT_NUMBER_OF_REGISTERS + 3)
#define TMP_REG3    (SLJIT_NUMBER_OF_REGISTERS + 4)
#define TMP_ZERO    0
 
/* Flags are kept in volatile registers. */
#define EQUAL_FLAG  (SLJIT_NUMBER_OF_REGISTERS + 5)
#define RETURN_ADDR_REG TMP_REG2
#define OTHER_FLAG  (SLJIT_NUMBER_OF_REGISTERS + 6)
 
#define TMP_FREG1   (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
#define TMP_FREG2   (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
 
static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 7] = {
    0, 10, 11, 12, 13, 14, 15, 16, 17, 29, 30, 31, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 9, 8, 2, 6, 1, 7, 5, 28
};
 
static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
    0, 10, 11, 12, 13, 14, 15, 16, 17, 2, 3, 4, 5, 6, 7, 28, 29, 30, 31, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 9, 8, 0, 1,
};
 
/* --------------------------------------------------------------------- */
/*  Instrucion forms                                                     */
/* --------------------------------------------------------------------- */
 
#define RD(rd)      ((sljit_ins)reg_map[rd] << 7)
#define RS1(rs1)    ((sljit_ins)reg_map[rs1] << 15)
#define RS2(rs2)    ((sljit_ins)reg_map[rs2] << 20)
#define FRD(rd)     ((sljit_ins)freg_map[rd] << 7)
#define FRS1(rs1)   ((sljit_ins)freg_map[rs1] << 15)
#define FRS2(rs2)   ((sljit_ins)freg_map[rs2] << 20)
#define IMM_I(imm)  ((sljit_ins)(imm) << 20)
#define IMM_S(imm)  ((((sljit_ins)(imm) & 0xfe0) << 20) | (((sljit_ins)(imm) & 0x1f) << 7))
 
/* Represents funct(i) parts of the instructions. */
#define OPC(o)      ((sljit_ins)(o))
#define F3(f)       ((sljit_ins)(f) << 12)
#define F12(f)      ((sljit_ins)(f) << 20)
#define F7(f)       ((sljit_ins)(f) << 25)
 
#define ADD     (F7(0x0) | F3(0x0) | OPC(0x33))
#define ADDI        (F3(0x0) | OPC(0x13))
#define AND     (F7(0x0) | F3(0x7) | OPC(0x33))
#define ANDI        (F3(0x7) | OPC(0x13))
#define AUIPC       (OPC(0x17))
#define BEQ     (F3(0x0) | OPC(0x63))
#define BNE     (F3(0x1) | OPC(0x63))
#define BLT     (F3(0x4) | OPC(0x63))
#define BGE     (F3(0x5) | OPC(0x63))
#define BLTU        (F3(0x6) | OPC(0x63))
#define BGEU        (F3(0x7) | OPC(0x63))
#define DIV     (F7(0x1) | F3(0x4) | OPC(0x33))
#define DIVU        (F7(0x1) | F3(0x5) | OPC(0x33))
#define EBREAK      (F12(0x1) | F3(0x0) | OPC(0x73))
#define FADD_S      (F7(0x0) | F3(0x7) | OPC(0x53))
#define FDIV_S      (F7(0xc) | F3(0x7) | OPC(0x53))
#define FEQ_S       (F7(0x50) | F3(0x2) | OPC(0x53))
#define FLD     (F3(0x3) | OPC(0x7))
#define FLE_S       (F7(0x50) | F3(0x0) | OPC(0x53))
#define FLT_S       (F7(0x50) | F3(0x1) | OPC(0x53))
/* These conversion opcodes are partly defined. */
#define FCVT_S_D    (F7(0x20) | OPC(0x53))
#define FCVT_S_W    (F7(0x68) | OPC(0x53))
#define FCVT_S_WU   (F7(0x68) | F12(0x1) | OPC(0x53))
#define FCVT_W_S    (F7(0x60) | F3(0x1) | OPC(0x53))
#define FMUL_S      (F7(0x8) | F3(0x7) | OPC(0x53))
#define FMV_X_W     (F7(0x70) | F3(0x0) | OPC(0x53))
#define FMV_W_X     (F7(0x78) | F3(0x0) | OPC(0x53))
#define FSD     (F3(0x3) | OPC(0x27))
#define FSGNJ_S     (F7(0x10) | F3(0x0) | OPC(0x53))
#define FSGNJN_S    (F7(0x10) | F3(0x1) | OPC(0x53))
#define FSGNJX_S    (F7(0x10) | F3(0x2) | OPC(0x53))
#define FSUB_S      (F7(0x4) | F3(0x7) | OPC(0x53))
#define FSW     (F3(0x2) | OPC(0x27))
#define JAL     (OPC(0x6f))
#define JALR        (F3(0x0) | OPC(0x67))
#define LD      (F3(0x3) | OPC(0x3))
#define LUI     (OPC(0x37))
#define LW      (F3(0x2) | OPC(0x3))
#define MUL     (F7(0x1) | F3(0x0) | OPC(0x33))
#define MULH        (F7(0x1) | F3(0x1) | OPC(0x33))
#define MULHU       (F7(0x1) | F3(0x3) | OPC(0x33))
#define OR      (F7(0x0) | F3(0x6) | OPC(0x33))
#define ORI     (F3(0x6) | OPC(0x13))
#define REM     (F7(0x1) | F3(0x6) | OPC(0x33))
#define REMU        (F7(0x1) | F3(0x7) | OPC(0x33))
#define SD      (F3(0x3) | OPC(0x23))
#define SLL     (F7(0x0) | F3(0x1) | OPC(0x33))
#define SLLI        (IMM_I(0x0) | F3(0x1) | OPC(0x13))
#define SLT     (F7(0x0) | F3(0x2) | OPC(0x33))
#define SLTI        (F3(0x2) | OPC(0x13))
#define SLTU        (F7(0x0) | F3(0x3) | OPC(0x33))
#define SLTUI       (F3(0x3) | OPC(0x13))
#define SRL     (F7(0x0) | F3(0x5) | OPC(0x33))
#define SRLI        (IMM_I(0x0) | F3(0x5) | OPC(0x13))
#define SRA     (F7(0x20) | F3(0x5) | OPC(0x33))
#define SRAI        (IMM_I(0x400) | F3(0x5) | OPC(0x13))
#define SUB     (F7(0x20) | F3(0x0) | OPC(0x33))
#define SW      (F3(0x2) | OPC(0x23))
#define XOR     (F7(0x0) | F3(0x4) | OPC(0x33))
#define XORI        (F3(0x4) | OPC(0x13))
 
#define SIMM_MAX    (0x7ff)
#define SIMM_MIN    (-0x800)
#define BRANCH_MAX  (0xfff)
#define BRANCH_MIN  (-0x1000)
#define JUMP_MAX    (0xfffff)
#define JUMP_MIN    (-0x100000)
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
#define S32_MAX     (0x7ffff7ffl)
#define S32_MIN     (-0x80000000l)
#define S44_MAX     (0x7fffffff7ffl)
#define S52_MAX     (0x7ffffffffffffl)
#endif
 
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_s32 push_imm_s_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_sw imm)
{
    return push_inst(compiler, ins | IMM_S(imm));
}
 
static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code, sljit_sw executable_offset)
{
    sljit_sw diff;
    sljit_uw target_addr;
    sljit_ins *inst;
 
    inst = (sljit_ins *)jump->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)inst - executable_offset;
 
    if (jump->flags & IS_COND) {
        diff += SSIZE_OF(ins);
 
        if (diff >= BRANCH_MIN && diff <= BRANCH_MAX) {
            inst--;
            inst[0] = (inst[0] & 0x1fff07f) ^ 0x1000;
            jump->flags |= PATCH_B;
            jump->addr = (sljit_uw)inst;
            return inst;
        }
 
        diff -= SSIZE_OF(ins);
    }
 
    if (diff >= JUMP_MIN && diff <= JUMP_MAX) {
        if (jump->flags & IS_COND) {
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
            inst[-1] -= (sljit_ins)(1 * sizeof(sljit_ins)) << 7;
#else
            inst[-1] -= (sljit_ins)(5 * sizeof(sljit_ins)) << 7;
#endif
        }
 
        jump->flags |= PATCH_J;
        return inst;
    }
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    if (diff >= S32_MIN && diff <= S32_MAX) {
        if (jump->flags & IS_COND)
            inst[-1] -= (sljit_ins)(4 * sizeof(sljit_ins)) << 7;
 
        jump->flags |= PATCH_REL32;
        inst[1] = inst[0];
        return inst + 1;
    }
 
    if (target_addr <= (sljit_uw)S32_MAX) {
        if (jump->flags & IS_COND)
            inst[-1] -= (sljit_ins)(4 * sizeof(sljit_ins)) << 7;
 
        jump->flags |= PATCH_ABS32;
        inst[1] = inst[0];
        return inst + 1;
    }
 
    if (target_addr <= S44_MAX) {
        if (jump->flags & IS_COND)
            inst[-1] -= (sljit_ins)(2 * sizeof(sljit_ins)) << 7;
 
        jump->flags |= PATCH_ABS44;
        inst[3] = inst[0];
        return inst + 3;
    }
 
    if (target_addr <= S52_MAX) {
        if (jump->flags & IS_COND)
            inst[-1] -= (sljit_ins)(1 * sizeof(sljit_ins)) << 7;
 
        jump->flags |= PATCH_ABS52;
        inst[4] = inst[0];
        return inst + 4;
    }
#endif
 
exit:
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    inst[1] = inst[0];
    return inst + 1;
#else
    inst[5] = inst[0];
    return inst + 5;
#endif
}
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
 
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)6 << 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 >= S32_MIN && diff <= S32_MAX) {
        SLJIT_ASSERT(jump->flags >= ((sljit_uw)1 << JUMP_SIZE_SHIFT));
        jump->flags |= PATCH_REL32;
        return 1;
    }
 
    if (addr <= S32_MAX) {
        SLJIT_ASSERT(jump->flags >= ((sljit_uw)1 << JUMP_SIZE_SHIFT));
        jump->flags |= PATCH_ABS32;
        return 1;
    }
 
    if (addr <= S44_MAX) {
        SLJIT_ASSERT(jump->flags >= ((sljit_uw)3 << JUMP_SIZE_SHIFT));
        jump->flags |= PATCH_ABS44;
        return 3;
    }
 
    if (addr <= S52_MAX) {
        SLJIT_ASSERT(jump->flags >= ((sljit_uw)4 << JUMP_SIZE_SHIFT));
        jump->flags |= PATCH_ABS52;
        return 4;
    }
 
    SLJIT_ASSERT(jump->flags >= ((sljit_uw)5 << JUMP_SIZE_SHIFT));
    return 5;
}
 
#endif /* SLJIT_CONFIG_RISCV_64 */
 
static SLJIT_INLINE void load_addr_to_reg(struct sljit_jump *jump, sljit_sw executable_offset)
{
    sljit_uw flags = jump->flags;
    sljit_uw addr = (flags & JUMP_ADDR) ? jump->u.target : jump->u.label->u.addr;
    sljit_ins *ins = (sljit_ins*)jump->addr;
    sljit_u32 reg = (flags & JUMP_MOV_ADDR) ? *ins : TMP_REG1;
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    sljit_sw high;
#endif
    SLJIT_UNUSED_ARG(executable_offset);
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    if (flags & PATCH_REL32) {
        addr -= (sljit_uw)SLJIT_ADD_EXEC_OFFSET(ins, executable_offset);
 
        SLJIT_ASSERT((sljit_sw)addr >= S32_MIN && (sljit_sw)addr <= S32_MAX);
 
        if ((addr & 0x800) != 0)
            addr += 0x1000;
 
        ins[0] = AUIPC | RD(reg) | (sljit_ins)((sljit_sw)addr & ~0xfff);
 
        if (!(flags & JUMP_MOV_ADDR)) {
            SLJIT_ASSERT((ins[1] & 0x707f) == JALR);
            ins[1] = (ins[1] & 0xfffff) | IMM_I(addr);
        } else
            ins[1] = ADDI | RD(reg) | RS1(reg) | IMM_I(addr);
        return;
    }
#endif
 
    if ((addr & 0x800) != 0)
        addr += 0x1000;
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    ins[0] = LUI | RD(reg) | (sljit_ins)((sljit_sw)addr & ~0xfff);
#else /* !SLJIT_CONFIG_RISCV_32 */
 
    if (flags & PATCH_ABS32) {
        SLJIT_ASSERT(addr <= S32_MAX);
        ins[0] = LUI | RD(reg) | (sljit_ins)((sljit_sw)addr & ~0xfff);
    } else if (flags & PATCH_ABS44) {
        high = (sljit_sw)addr >> 12;
        SLJIT_ASSERT((sljit_uw)high <= 0x7fffffff);
 
        if (high > S32_MAX) {
            SLJIT_ASSERT((high & 0x800) != 0);
            ins[0] = LUI | RD(reg) | (sljit_ins)0x80000000u;
            ins[1] = XORI | RD(reg) | RS1(reg) | IMM_I(high);
        } else {
            if ((high & 0x800) != 0)
                high += 0x1000;
 
            ins[0] = LUI | RD(reg) | (sljit_ins)(high & ~0xfff);
            ins[1] = ADDI | RD(reg) | RS1(reg) | IMM_I(high);
        }
 
        ins[2] = SLLI | RD(reg) | RS1(reg) | IMM_I(12);
        ins += 2;
    } else {
        high = (sljit_sw)addr >> 32;
 
        if ((addr & 0x80000000l) != 0)
            high = ~high;
 
        if (flags & PATCH_ABS52) {
            SLJIT_ASSERT(addr <= S52_MAX);
            ins[0] = LUI | RD(TMP_REG3) | (sljit_ins)(high << 12);
        } else {
            if ((high & 0x800) != 0)
                high += 0x1000;
            ins[0] = LUI | RD(TMP_REG3) | (sljit_ins)(high & ~0xfff);
            ins[1] = ADDI | RD(TMP_REG3) | RS1(TMP_REG3) | IMM_I(high);
            ins++;
        }
 
        ins[1] = LUI | RD(reg) | (sljit_ins)((sljit_sw)addr & ~0xfff);
        ins[2] = SLLI | RD(TMP_REG3) | RS1(TMP_REG3) | IMM_I((flags & PATCH_ABS52) ? 20 : 32);
        ins[3] = XOR | RD(reg) | RS1(reg) | RS2(TMP_REG3);
        ins += 3;
    }
#endif /* !SLJIT_CONFIG_RISCV_32 */
 
    if (!(flags & JUMP_MOV_ADDR)) {
        SLJIT_ASSERT((ins[1] & 0x707f) == JALR);
        ins[1] = (ins[1] & 0xfffff) | IMM_I(addr);
    } else
        ins[1] = ADDI | RD(reg) | RS1(reg) | IMM_I(addr);
}
 
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 (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
                    if (jump->u.target <= S32_MAX)
                        total_size = 2;
                    else if (jump->u.target <= S44_MAX)
                        total_size = 4;
                    else if (jump->u.target <= S52_MAX)
                        total_size = 5;
#endif /* SLJIT_CONFIG_RISCV_64 */
                } else {
                    /* Unit size: instruction. */
                    diff = (sljit_sw)jump->u.label->size - (sljit_sw)jump->addr;
 
                    if ((jump->flags & IS_COND) && (diff + 1) <= (BRANCH_MAX / SSIZE_OF(ins)) && (diff + 1) >= (BRANCH_MIN / SSIZE_OF(ins)))
                        total_size = 0;
                    else if (diff >= (JUMP_MIN / SSIZE_OF(ins)) && diff <= (JUMP_MAX / SSIZE_OF(ins)))
                        total_size = 1;
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
                    else if (diff >= (S32_MIN / SSIZE_OF(ins)) && diff <= (S32_MAX / SSIZE_OF(ins)))
                        total_size = 2;
#endif /* SLJIT_CONFIG_RISCV_64 */
                }
            }
 
            size_reduce += JUMP_MAX_SIZE - total_size;
            jump->flags |= total_size << JUMP_SIZE_SHIFT;
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
        } else {
            total_size = 5;
 
            if (!(jump->flags & JUMP_ADDR)) {
                /* Real size minus 1. Unit size: instruction. */
                diff = (sljit_sw)jump->u.label->size - (sljit_sw)jump->addr;
 
                if (diff >= (S32_MIN / SSIZE_OF(ins)) && diff <= (S32_MAX / SSIZE_OF(ins)))
                    total_size = 1;
            } else if (jump->u.target < S32_MAX)
                total_size = 1;
            else if (jump->u.target < S44_MAX)
                total_size = 3;
            else if (jump->u.target <= S52_MAX)
                total_size = 4;
 
            size_reduce += 5 - total_size;
            jump->flags |= total_size << JUMP_SIZE_SHIFT;
#endif /* !SLJIT_CONFIG_RISCV_64 */
        }
 
        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_uw 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, executable_offset);
                        SLJIT_ASSERT((jump->flags & PATCH_B) || ((sljit_uw)code_ptr - jump->addr < (jump->flags >> JUMP_SIZE_SHIFT) * sizeof(sljit_ins)));
                    } else {
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
                        word_count += 1;
                        jump->addr = (sljit_uw)code_ptr;
                        code_ptr += 1;
#else /* !SLJIT_CONFIG_RISCV_32 */
                        word_count += jump->flags >> JUMP_SIZE_SHIFT;
                        addr = (sljit_uw)code_ptr;
                        code_ptr += mov_addr_get_length(jump, code_ptr, code, executable_offset);
                        jump->addr = addr;
#endif /* SLJIT_CONFIG_RISCV_32 */
                    }
                    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)code_ptr;
        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) {
        do {
            if (!(jump->flags & (PATCH_B | PATCH_J)) || (jump->flags & JUMP_MOV_ADDR)) {
                load_addr_to_reg(jump, executable_offset);
                break;
            }
 
            addr = (jump->flags & JUMP_ADDR) ? jump->u.target : jump->u.label->u.addr;
            buf_ptr = (sljit_ins *)jump->addr;
            addr -= (sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset);
 
            if (jump->flags & PATCH_B) {
                SLJIT_ASSERT((sljit_sw)addr >= BRANCH_MIN && (sljit_sw)addr <= BRANCH_MAX);
                addr = ((addr & 0x800) >> 4) | ((addr & 0x1e) << 7) | ((addr & 0x7e0) << 20) | ((addr & 0x1000) << 19);
                buf_ptr[0] |= (sljit_ins)addr;
                break;
            }
 
            SLJIT_ASSERT((sljit_sw)addr >= JUMP_MIN && (sljit_sw)addr <= JUMP_MAX);
            addr = (addr & 0xff000) | ((addr & 0x800) << 9) | ((addr & 0x7fe) << 20) | ((addr & 0x100000) << 11);
            buf_ptr[0] = JAL | RD((jump->flags & IS_CALL) ? RETURN_ADDR_REG : TMP_ZERO) | (sljit_ins)addr;
        } while (0);
 
        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:
#ifdef SLJIT_IS_FPU_AVAILABLE
        return (SLJIT_IS_FPU_AVAILABLE) != 0;
#elif defined(__riscv_float_abi_soft)
        return 0;
#else
        return 1;
#endif /* SLJIT_IS_FPU_AVAILABLE */
    case SLJIT_HAS_ZERO_REGISTER:
    case SLJIT_HAS_COPY_F32:
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    case SLJIT_HAS_COPY_F64:
#endif /* !SLJIT_CONFIG_RISCV_64 */
        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;
 
    case SLJIT_UNORDERED:
    case SLJIT_ORDERED:
        return 1;
    }
 
    return 0;
}
 
/* --------------------------------------------------------------------- */
/*  Entry, exit                                                          */
/* --------------------------------------------------------------------- */
 
/* Creates an index in data_transfer_insts array. */
#define LOAD_DATA   0x01
#define WORD_DATA   0x00
#define BYTE_DATA   0x02
#define HALF_DATA   0x04
#define INT_DATA    0x06
#define SIGNED_DATA 0x08
/* Separates integer and floating point registers */
#define GPR_REG     0x0f
#define DOUBLE_DATA 0x10
#define SINGLE_DATA 0x12
 
#define MEM_MASK    0x1f
 
#define ARG_TEST    0x00020
#define ALT_KEEP_CACHE  0x00040
#define CUMULATIVE_OP   0x00080
#define IMM_OP      0x00100
#define MOVE_OP     0x00200
#define SRC2_IMM    0x00400
 
#define UNUSED_DEST 0x00800
#define REG_DEST    0x01000
#define REG1_SOURCE 0x02000
#define REG2_SOURCE 0x04000
#define SLOW_SRC1   0x08000
#define SLOW_SRC2   0x10000
#define SLOW_DEST   0x20000
#define MEM_USE_TMP2    0x40000
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
#define STACK_STORE SW
#define STACK_LOAD  LW
#else
#define STACK_STORE SD
#define STACK_LOAD  LD
#endif
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
#include "sljitNativeRISCV_32.c"
#else
#include "sljitNativeRISCV_64.c"
#endif
 
#define STACK_MAX_DISTANCE (-SIMM_MIN)
 
static sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw);
 
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 i, tmp, offset;
    sljit_s32 saved_arg_count = SLJIT_KEPT_SAVEDS_COUNT(options);
 
    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);
 
    local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds - saved_arg_count, 1);
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    if (fsaveds > 0 || fscratches >= SLJIT_FIRST_SAVED_FLOAT_REG) {
        if ((local_size & SSIZE_OF(sw)) != 0)
            local_size += SSIZE_OF(sw);
        local_size += GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, f64);
    }
#else
    local_size += GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, f64);
#endif
    local_size = (local_size + SLJIT_LOCALS_OFFSET + 15) & ~0xf;
    compiler->local_size = local_size;
 
    if (local_size <= STACK_MAX_DISTANCE) {
        /* Frequent case. */
        FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RS1(SLJIT_SP) | IMM_I(-local_size)));
        offset = local_size - SSIZE_OF(sw);
        local_size = 0;
    } else {
        FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RS1(SLJIT_SP) | IMM_I(STACK_MAX_DISTANCE)));
        local_size -= STACK_MAX_DISTANCE;
 
        if (local_size > STACK_MAX_DISTANCE)
            FAIL_IF(load_immediate(compiler, TMP_REG1, local_size, TMP_REG3));
        offset = STACK_MAX_DISTANCE - SSIZE_OF(sw);
    }
 
    FAIL_IF(push_imm_s_inst(compiler, STACK_STORE | RS1(SLJIT_SP) | RS2(RETURN_ADDR_REG), offset));
 
    tmp = SLJIT_S0 - saveds;
    for (i = SLJIT_S0 - saved_arg_count; i > tmp; i--) {
        offset -= SSIZE_OF(sw);
        FAIL_IF(push_imm_s_inst(compiler, STACK_STORE | RS1(SLJIT_SP) | RS2(i), offset));
    }
 
    for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
        offset -= SSIZE_OF(sw);
        FAIL_IF(push_imm_s_inst(compiler, STACK_STORE | RS1(SLJIT_SP) | RS2(i), offset));
    }
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    /* This alignment is valid because offset is not used after storing FPU regs. */
    if ((offset & SSIZE_OF(sw)) != 0)
        offset -= SSIZE_OF(sw);
#endif
 
    tmp = SLJIT_FS0 - fsaveds;
    for (i = SLJIT_FS0; i > tmp; i--) {
        offset -= SSIZE_OF(f64);
        FAIL_IF(push_imm_s_inst(compiler, FSD | RS1(SLJIT_SP) | FRS2(i), offset));
    }
 
    for (i = fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) {
        offset -= SSIZE_OF(f64);
        FAIL_IF(push_imm_s_inst(compiler, FSD | RS1(SLJIT_SP) | FRS2(i), offset));
    }
 
    if (local_size > STACK_MAX_DISTANCE)
        FAIL_IF(push_inst(compiler, SUB | RD(SLJIT_SP) | RS1(SLJIT_SP) | RS2(TMP_REG1)));
    else if (local_size > 0)
        FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RS1(SLJIT_SP) | IMM_I(-local_size)));
 
    if (options & SLJIT_ENTER_REG_ARG)
        return SLJIT_SUCCESS;
 
    arg_types >>= SLJIT_ARG_SHIFT;
    saved_arg_count = 0;
    tmp = SLJIT_R0;
 
    while (arg_types > 0) {
        if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64) {
            if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
                FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_S0 - saved_arg_count) | RS1(tmp) | IMM_I(0)));
                saved_arg_count++;
            }
            tmp++;
        }
 
        arg_types >>= SLJIT_ARG_SHIFT;
    }
 
    return SLJIT_SUCCESS;
}
 
#undef STACK_MAX_DISTANCE
 
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)
{
    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);
 
    local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds - SLJIT_KEPT_SAVEDS_COUNT(options), 1);
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    if (fsaveds > 0 || fscratches >= SLJIT_FIRST_SAVED_FLOAT_REG) {
        if ((local_size & SSIZE_OF(sw)) != 0)
            local_size += SSIZE_OF(sw);
        local_size += GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, f64);
    }
#else
    local_size += GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, f64);
#endif
    compiler->local_size = (local_size + SLJIT_LOCALS_OFFSET + 15) & ~0xf;
 
    return SLJIT_SUCCESS;
}
 
#define STACK_MAX_DISTANCE (-SIMM_MIN - 16)
 
static sljit_s32 emit_stack_frame_release(struct sljit_compiler *compiler, sljit_s32 is_return_to)
{
    sljit_s32 i, tmp, offset;
    sljit_s32 local_size = compiler->local_size;
 
    if (local_size > STACK_MAX_DISTANCE) {
        local_size -= STACK_MAX_DISTANCE;
 
        if (local_size > STACK_MAX_DISTANCE) {
            FAIL_IF(load_immediate(compiler, TMP_REG2, local_size, TMP_REG3));
            FAIL_IF(push_inst(compiler, ADD | RD(SLJIT_SP) | RS1(SLJIT_SP) | RS2(TMP_REG2)));
        } else
            FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RS1(SLJIT_SP) | IMM_I(local_size)));
 
        local_size = STACK_MAX_DISTANCE;
    }
 
    SLJIT_ASSERT(local_size > 0);
 
    offset = local_size - SSIZE_OF(sw);
    if (!is_return_to)
        FAIL_IF(push_inst(compiler, STACK_LOAD | RD(RETURN_ADDR_REG) | RS1(SLJIT_SP) | IMM_I(offset)));
 
    tmp = SLJIT_S0 - compiler->saveds;
    for (i = SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options); i > tmp; i--) {
        offset -= SSIZE_OF(sw);
        FAIL_IF(push_inst(compiler, STACK_LOAD | RD(i) | RS1(SLJIT_SP) | IMM_I(offset)));
    }
 
    for (i = compiler->scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
        offset -= SSIZE_OF(sw);
        FAIL_IF(push_inst(compiler, STACK_LOAD | RD(i) | RS1(SLJIT_SP) | IMM_I(offset)));
    }
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    /* This alignment is valid because offset is not used after storing FPU regs. */
    if ((offset & SSIZE_OF(sw)) != 0)
        offset -= SSIZE_OF(sw);
#endif
 
    tmp = SLJIT_FS0 - compiler->fsaveds;
    for (i = SLJIT_FS0; i > tmp; i--) {
        offset -= SSIZE_OF(f64);
        FAIL_IF(push_inst(compiler, FLD | FRD(i) | RS1(SLJIT_SP) | IMM_I(offset)));
    }
 
    for (i = compiler->fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) {
        offset -= SSIZE_OF(f64);
        FAIL_IF(push_inst(compiler, FLD | FRD(i) | RS1(SLJIT_SP) | IMM_I(offset)));
    }
 
    return push_inst(compiler, ADDI | RD(SLJIT_SP) | RS1(SLJIT_SP) | IMM_I(local_size));
}
 
#undef STACK_MAX_DISTANCE
 
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, JALR | RD(TMP_ZERO) | RS1(RETURN_ADDR_REG) | IMM_I(0));
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_to(struct sljit_compiler *compiler,
    sljit_s32 src, sljit_sw srcw)
{
    CHECK_ERROR();
    CHECK(check_sljit_emit_return_to(compiler, src, srcw));
 
    if (src & SLJIT_MEM) {
        ADJUST_LOCAL_OFFSET(src, srcw);
        FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw));
        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, ADDI | RD(TMP_REG1) | RS1(src) | IMM_I(0)));
        src = TMP_REG1;
        srcw = 0;
    }
 
    FAIL_IF(emit_stack_frame_release(compiler, 1));
 
    SLJIT_SKIP_CHECKS(compiler);
    return sljit_emit_ijump(compiler, SLJIT_JUMP, src, srcw);
}
 
/* --------------------------------------------------------------------- */
/*  Operators                                                            */
/* --------------------------------------------------------------------- */
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
#define ARCH_32_64(a, b)    a
#else
#define ARCH_32_64(a, b)    b
#endif
 
static const sljit_ins data_transfer_insts[16 + 4] = {
/* u w s */ ARCH_32_64(F3(0x2) | OPC(0x23) /* sw */, F3(0x3) | OPC(0x23) /* sd */),
/* u w l */ ARCH_32_64(F3(0x2) | OPC(0x3) /* lw */, F3(0x3) | OPC(0x3) /* ld */),
/* u b s */ F3(0x0) | OPC(0x23) /* sb */,
/* u b l */ F3(0x4) | OPC(0x3) /* lbu */,
/* u h s */ F3(0x1) | OPC(0x23) /* sh */,
/* u h l */ F3(0x5) | OPC(0x3) /* lhu */,
/* u i s */ F3(0x2) | OPC(0x23) /* sw */,
/* u i l */ ARCH_32_64(F3(0x2) | OPC(0x3) /* lw */, F3(0x6) | OPC(0x3) /* lwu */),
 
/* s w s */ ARCH_32_64(F3(0x2) | OPC(0x23) /* sw */, F3(0x3) | OPC(0x23) /* sd */),
/* s w l */ ARCH_32_64(F3(0x2) | OPC(0x3) /* lw */, F3(0x3) | OPC(0x3) /* ld */),
/* s b s */ F3(0x0) | OPC(0x23) /* sb */,
/* s b l */ F3(0x0) | OPC(0x3) /* lb */,
/* s h s */ F3(0x1) | OPC(0x23) /* sh */,
/* s h l */ F3(0x1) | OPC(0x3) /* lh */,
/* s i s */ F3(0x2) | OPC(0x23) /* sw */,
/* s i l */ F3(0x2) | OPC(0x3) /* lw */,
 
/* d   s */ F3(0x3) | OPC(0x27) /* fsd */,
/* d   l */ F3(0x3) | OPC(0x7) /* fld */,
/* s   s */ F3(0x2) | OPC(0x27) /* fsw */,
/* s   l */ F3(0x2) | OPC(0x7) /* flw */,
};
 
#undef ARCH_32_64
 
static sljit_s32 push_mem_inst(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 base, sljit_sw offset)
{
    sljit_ins ins;
 
    SLJIT_ASSERT(FAST_IS_REG(base) && offset <= 0xfff && offset >= SIMM_MIN);
 
    ins = data_transfer_insts[flags & MEM_MASK] | RS1(base);
    if (flags & LOAD_DATA)
        ins |= ((flags & MEM_MASK) <= GPR_REG ? RD(reg) : FRD(reg)) | IMM_I(offset);
    else
        ins |= ((flags & MEM_MASK) <= GPR_REG ? RS2(reg) : FRS2(reg)) | IMM_S(offset);
 
    return push_inst(compiler, ins);
}
 
/* Can perform an operation using at most 1 instruction. */
static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
{
    SLJIT_ASSERT(arg & SLJIT_MEM);
 
    if (!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) {
        /* Works for both absoulte and relative addresses. */
        if (SLJIT_UNLIKELY(flags & ARG_TEST))
            return 1;
 
        FAIL_IF(push_mem_inst(compiler, flags, reg, arg & REG_MASK, argw));
        return -1;
    }
    return 0;
}
 
#define TO_ARGW_HI(argw) (((argw) & ~0xfff) + (((argw) & 0x800) ? 0x1000 : 0))
 
/* See getput_arg below.
   Note: can_cache is called only for binary operators. */
static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
{
    SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
 
    /* Simple operation except for updates. */
    if (arg & OFFS_REG_MASK) {
        argw &= 0x3;
        next_argw &= 0x3;
        if (argw && argw == next_argw && (arg == next_arg || (arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK)))
            return 1;
        return 0;
    }
 
    if (arg == next_arg) {
        if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN)
                || TO_ARGW_HI(argw) == TO_ARGW_HI(next_argw))
            return 1;
        return 0;
    }
 
    return 0;
}
 
/* Emit the necessary instructions. See can_cache above. */
static sljit_s32 getput_arg(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
{
    sljit_s32 base = arg & REG_MASK;
    sljit_s32 tmp_r = (flags & MEM_USE_TMP2) ? TMP_REG2 : TMP_REG1;
    sljit_sw offset, argw_hi;
 
    SLJIT_ASSERT(arg & SLJIT_MEM);
    if (!(next_arg & SLJIT_MEM)) {
        next_arg = 0;
        next_argw = 0;
    }
 
    if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
        argw &= 0x3;
 
        /* Using the cache. */
        if (argw == compiler->cache_argw) {
            if (arg == compiler->cache_arg)
                return push_mem_inst(compiler, flags, reg, TMP_REG3, 0);
 
            if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) {
                if (arg == next_arg && argw == (next_argw & 0x3)) {
                    compiler->cache_arg = arg;
                    compiler->cache_argw = argw;
                    FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG3) | RS1(TMP_REG3) | RS2(base)));
                    return push_mem_inst(compiler, flags, reg, TMP_REG3, 0);
                }
                FAIL_IF(push_inst(compiler, ADD | RD(tmp_r) | RS1(base) | RS2(TMP_REG3)));
                return push_mem_inst(compiler, flags, reg, tmp_r, 0);
            }
        }
 
        if (SLJIT_UNLIKELY(argw)) {
            compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
            compiler->cache_argw = argw;
            FAIL_IF(push_inst(compiler, SLLI | RD(TMP_REG3) | RS1(OFFS_REG(arg)) | IMM_I(argw)));
        }
 
        if (arg == next_arg && argw == (next_argw & 0x3)) {
            compiler->cache_arg = arg;
            compiler->cache_argw = argw;
            FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG3) | RS1(base) | RS2(!argw ? OFFS_REG(arg) : TMP_REG3)));
            tmp_r = TMP_REG3;
        }
        else
            FAIL_IF(push_inst(compiler, ADD | RD(tmp_r) | RS1(base) | RS2(!argw ? OFFS_REG(arg) : TMP_REG3)));
        return push_mem_inst(compiler, flags, reg, tmp_r, 0);
    }
 
    if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN)
        return push_mem_inst(compiler, flags, reg, TMP_REG3, argw - compiler->cache_argw);
 
    if (compiler->cache_arg == SLJIT_MEM && (argw - compiler->cache_argw <= SIMM_MAX) && (argw - compiler->cache_argw >= SIMM_MIN)) {
        offset = argw - compiler->cache_argw;
    } else {
        compiler->cache_arg = SLJIT_MEM;
 
        argw_hi = TO_ARGW_HI(argw);
 
        if (next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN && argw_hi != TO_ARGW_HI(next_argw)) {
            FAIL_IF(load_immediate(compiler, TMP_REG3, argw, tmp_r));
            compiler->cache_argw = argw;
            offset = 0;
        } else {
            FAIL_IF(load_immediate(compiler, TMP_REG3, argw_hi, tmp_r));
            compiler->cache_argw = argw_hi;
            offset = argw & 0xfff;
            argw = argw_hi;
        }
    }
 
    if (!base)
        return push_mem_inst(compiler, flags, reg, TMP_REG3, offset);
 
    if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) {
        compiler->cache_arg = arg;
        FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG3) | RS1(TMP_REG3) | RS2(base)));
        return push_mem_inst(compiler, flags, reg, TMP_REG3, offset);
    }
 
    FAIL_IF(push_inst(compiler, ADD | RD(tmp_r) | RS1(TMP_REG3) | RS2(base)));
    return push_mem_inst(compiler, flags, reg, tmp_r, offset);
}
 
static sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
{
    sljit_s32 base = arg & REG_MASK;
    sljit_s32 tmp_r = TMP_REG1;
 
    if (getput_arg_fast(compiler, flags, reg, arg, argw))
        return compiler->error;
 
    if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA))
        tmp_r = reg;
 
    if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
        argw &= 0x3;
 
        if (SLJIT_UNLIKELY(argw)) {
            FAIL_IF(push_inst(compiler, SLLI | RD(tmp_r) | RS1(OFFS_REG(arg)) | IMM_I(argw)));
            FAIL_IF(push_inst(compiler, ADD | RD(tmp_r) | RS1(tmp_r) | RS2(base)));
        }
        else
            FAIL_IF(push_inst(compiler, ADD | RD(tmp_r) | RS1(base) | RS2(OFFS_REG(arg))));
 
        argw = 0;
    } else {
        FAIL_IF(load_immediate(compiler, tmp_r, TO_ARGW_HI(argw), TMP_REG3));
 
        if (base != 0)
            FAIL_IF(push_inst(compiler, ADD | RD(tmp_r) | RS1(tmp_r) | RS2(base)));
    }
 
    return push_mem_inst(compiler, flags, reg, tmp_r, argw & 0xfff);
}
 
static SLJIT_INLINE sljit_s32 emit_op_mem2(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg1, sljit_sw arg1w, sljit_s32 arg2, sljit_sw arg2w)
{
    if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
        return compiler->error;
    return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
}
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
#define WORD 0
#define WORD_32 0
#define IMM_EXTEND(v) (IMM_I(v))
#else /* !SLJIT_CONFIG_RISCV_32 */
#define WORD word
#define WORD_32 0x08
#define IMM_EXTEND(v) (IMM_I((op & SLJIT_32) ? (v) : (32 + (v))))
#endif /* SLJIT_CONFIG_RISCV_32 */
 
static sljit_s32 emit_clz_ctz(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 dst, sljit_sw src)
{
    sljit_s32 is_clz = (GET_OPCODE(op) == SLJIT_CLZ);
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    sljit_ins word = (sljit_ins)(op & SLJIT_32) >> 5;
    sljit_ins word_size = (op & SLJIT_32) ? 32 : 64;
#else /* !SLJIT_CONFIG_RISCV_64 */
    sljit_ins word_size = 32;
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    SLJIT_ASSERT(WORD == 0 || WORD == 0x8);
 
    /* The OTHER_FLAG is the counter. */
    FAIL_IF(push_inst(compiler, ADDI | WORD | RD(OTHER_FLAG) | RS1(TMP_ZERO) | IMM_I(word_size)));
 
    /* The TMP_REG2 is the next value. */
    if (src != TMP_REG2)
        FAIL_IF(push_inst(compiler, ADDI | WORD | RD(TMP_REG2) | RS1(src) | IMM_I(0)));
 
    FAIL_IF(push_inst(compiler, BEQ | RS1(TMP_REG2) | RS2(TMP_ZERO) | ((sljit_ins)((is_clz ? 4 : 5) * SSIZE_OF(ins)) << 7) | ((sljit_ins)(8 * SSIZE_OF(ins)) << 20)));
 
    FAIL_IF(push_inst(compiler, ADDI | WORD | RD(OTHER_FLAG) | RS1(TMP_ZERO) | IMM_I(0)));
    if (!is_clz) {
        FAIL_IF(push_inst(compiler, ANDI | RD(TMP_REG1) | RS1(TMP_REG2) | IMM_I(1)));
        FAIL_IF(push_inst(compiler, BNE | RS1(TMP_REG1) | RS2(TMP_ZERO) | ((sljit_ins)(2 * SSIZE_OF(ins)) << 7) | ((sljit_ins)(8 * SSIZE_OF(ins)) << 20)));
    } else
        FAIL_IF(push_inst(compiler, BLT | RS1(TMP_REG2) | RS2(TMP_ZERO) | ((sljit_ins)(2 * SSIZE_OF(ins)) << 7) | ((sljit_ins)(8 * SSIZE_OF(ins)) << 20)));
 
    /* The TMP_REG1 is the next shift. */
    FAIL_IF(push_inst(compiler, ADDI | WORD | RD(TMP_REG1) | RS1(TMP_ZERO) | IMM_I(word_size)));
 
    FAIL_IF(push_inst(compiler, ADDI | WORD | RD(EQUAL_FLAG) | RS1(TMP_REG2) | IMM_I(0)));
    FAIL_IF(push_inst(compiler, SRLI | WORD | RD(TMP_REG1) | RS1(TMP_REG1) | IMM_I(1)));
 
    FAIL_IF(push_inst(compiler, (is_clz ? SRL : SLL) | WORD | RD(TMP_REG2) | RS1(EQUAL_FLAG) | RS2(TMP_REG1)));
    FAIL_IF(push_inst(compiler, BNE | RS1(TMP_REG2) | RS2(TMP_ZERO) | ((sljit_ins)0xfe000e80 - ((2 * SSIZE_OF(ins)) << 7))));
    FAIL_IF(push_inst(compiler, ADDI | WORD | RD(TMP_REG2) | RS1(TMP_REG1) | IMM_I(-1)));
    FAIL_IF(push_inst(compiler, (is_clz ? SRL : SLL) | WORD | RD(TMP_REG2) | RS1(EQUAL_FLAG) | RS2(TMP_REG2)));
    FAIL_IF(push_inst(compiler, OR | RD(OTHER_FLAG) | RS1(OTHER_FLAG) | RS2(TMP_REG1)));
    FAIL_IF(push_inst(compiler, BEQ | RS1(TMP_REG2) | RS2(TMP_ZERO) | ((sljit_ins)0xfe000e80 - ((5 * SSIZE_OF(ins)) << 7))));
 
    return push_inst(compiler, ADDI | WORD | RD(dst) | RS1(OTHER_FLAG) | IMM_I(0));
}
 
static sljit_s32 emit_rev(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 dst, sljit_sw src)
{
    SLJIT_UNUSED_ARG(op);
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    if (!(op & SLJIT_32)) {
        FAIL_IF(push_inst(compiler, LUI | RD(OTHER_FLAG) | 0x10000));
        FAIL_IF(push_inst(compiler, SRLI | RD(TMP_REG1) | RS1(src) | IMM_I(32)));
        FAIL_IF(push_inst(compiler, ADDI | RD(OTHER_FLAG) | RS1(OTHER_FLAG) | IMM_I(0xfff)));
        FAIL_IF(push_inst(compiler, SLLI | RD(dst) | RS1(src) | IMM_I(32)));
        FAIL_IF(push_inst(compiler, SLLI | RD(EQUAL_FLAG) | RS1(OTHER_FLAG) | IMM_I(32)));
        FAIL_IF(push_inst(compiler, OR | RD(dst) | RS1(dst) | RS2(TMP_REG1)));
        FAIL_IF(push_inst(compiler, OR | RD(OTHER_FLAG) | RS1(OTHER_FLAG) | RS2(EQUAL_FLAG)));
 
        FAIL_IF(push_inst(compiler, SRLI | RD(TMP_REG1) | RS1(dst) | IMM_I(16)));
        FAIL_IF(push_inst(compiler, AND | RD(dst) | RS1(dst) | RS2(OTHER_FLAG)));
        FAIL_IF(push_inst(compiler, AND | RD(TMP_REG1) | RS1(TMP_REG1) | RS2(OTHER_FLAG)));
        FAIL_IF(push_inst(compiler, SLLI | RD(EQUAL_FLAG) | RS1(OTHER_FLAG) | IMM_I(8)));
        FAIL_IF(push_inst(compiler, SLLI | RD(dst) | RS1(dst) | IMM_I(16)));
        FAIL_IF(push_inst(compiler, XOR | RD(OTHER_FLAG) | RS1(OTHER_FLAG) | RS2(EQUAL_FLAG)));
        FAIL_IF(push_inst(compiler, OR | RD(dst) | RS1(dst) | RS2(TMP_REG1)));
 
        FAIL_IF(push_inst(compiler, SRLI | RD(TMP_REG1) | RS1(dst) | IMM_I(8)));
        FAIL_IF(push_inst(compiler, AND | RD(dst) | RS1(dst) | RS2(OTHER_FLAG)));
        FAIL_IF(push_inst(compiler, AND | RD(TMP_REG1) | RS1(TMP_REG1) | RS2(OTHER_FLAG)));
        FAIL_IF(push_inst(compiler, SLLI | RD(dst) | RS1(dst) | IMM_I(8)));
        return push_inst(compiler, OR | RD(dst) | RS1(dst) | RS2(TMP_REG1));
    }
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    FAIL_IF(push_inst(compiler, SRLI | WORD_32 | RD(TMP_REG1) | RS1(src) | IMM_I(16)));
    FAIL_IF(push_inst(compiler, LUI | RD(OTHER_FLAG) | 0xff0000));
    FAIL_IF(push_inst(compiler, SLLI | WORD_32 | RD(dst) | RS1(src) | IMM_I(16)));
    FAIL_IF(push_inst(compiler, ORI | RD(OTHER_FLAG) | RS1(OTHER_FLAG) | IMM_I(0xff)));
    FAIL_IF(push_inst(compiler, OR | RD(dst) | RS1(dst) | RS2(TMP_REG1)));
 
    FAIL_IF(push_inst(compiler, SRLI | WORD_32 | RD(TMP_REG1) | RS1(dst) | IMM_I(8)));
    FAIL_IF(push_inst(compiler, AND | RD(dst) | RS1(dst) | RS2(OTHER_FLAG)));
    FAIL_IF(push_inst(compiler, AND | RD(TMP_REG1) | RS1(TMP_REG1) | RS2(OTHER_FLAG)));
    FAIL_IF(push_inst(compiler, SLLI | WORD_32 | RD(dst) | RS1(dst) | IMM_I(8)));
    return push_inst(compiler, OR | RD(dst) | RS1(dst) | RS2(TMP_REG1));
}
 
static sljit_s32 emit_rev16(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 dst, sljit_sw src)
{
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    sljit_ins word = (sljit_ins)(op & SLJIT_32) >> 5;
    sljit_ins word_size = (op & SLJIT_32) ? 32 : 64;
#else /* !SLJIT_CONFIG_RISCV_64 */
    sljit_ins word_size = 32;
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    FAIL_IF(push_inst(compiler, SRLI | WORD | RD(TMP_REG1) | RS1(src) | IMM_I(8)));
    FAIL_IF(push_inst(compiler, SLLI | WORD | RD(dst) | RS1(src) | IMM_I(word_size - 8)));
    FAIL_IF(push_inst(compiler, ANDI | RD(TMP_REG1) | RS1(TMP_REG1) | IMM_I(0xff)));
    FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_REV_U16 ? SRLI : SRAI) | WORD | RD(dst) | RS1(dst) | IMM_I(word_size - 16)));
    return push_inst(compiler, OR | RD(dst) | RS1(dst) | RS2(TMP_REG1));
}
 
#define EMIT_LOGICAL(op_imm, op_reg) \
    if (flags & SRC2_IMM) { \
        if (op & SLJIT_SET_Z) \
            FAIL_IF(push_inst(compiler, op_imm | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(src2))); \
        if (!(flags & UNUSED_DEST)) \
            FAIL_IF(push_inst(compiler, op_imm | RD(dst) | RS1(src1) | IMM_I(src2))); \
    } \
    else { \
        if (op & SLJIT_SET_Z) \
            FAIL_IF(push_inst(compiler, op_reg | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2))); \
        if (!(flags & UNUSED_DEST)) \
            FAIL_IF(push_inst(compiler, op_reg | RD(dst) | RS1(src1) | RS2(src2))); \
    }
 
#define EMIT_SHIFT(imm, reg) \
    op_imm = (imm); \
    op_reg = (reg);
 
static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
    sljit_s32 dst, sljit_s32 src1, sljit_sw src2)
{
    sljit_s32 is_overflow, is_carry, carry_src_r, is_handled, reg;
    sljit_ins op_imm, op_reg;
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    sljit_ins word = (sljit_ins)(op & SLJIT_32) >> 5;
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    SLJIT_ASSERT(WORD == 0 || WORD == 0x8);
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        if (dst != src2)
            return push_inst(compiler, ADDI | RD(dst) | RS1(src2) | IMM_I(0));
        return SLJIT_SUCCESS;
 
    case SLJIT_MOV_U8:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE))
            return push_inst(compiler, ANDI | RD(dst) | RS1(src2) | IMM_I(0xff));
        SLJIT_ASSERT(dst == src2);
        return SLJIT_SUCCESS;
 
    case SLJIT_MOV_S8:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
            FAIL_IF(push_inst(compiler, SLLI | WORD | RD(dst) | RS1(src2) | IMM_EXTEND(24)));
            return push_inst(compiler, SRAI | WORD | RD(dst) | RS1(dst) | IMM_EXTEND(24));
        }
        SLJIT_ASSERT(dst == src2);
        return SLJIT_SUCCESS;
 
    case SLJIT_MOV_U16:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
            FAIL_IF(push_inst(compiler, SLLI | WORD | RD(dst) | RS1(src2) | IMM_EXTEND(16)));
            return push_inst(compiler, SRLI | WORD | RD(dst) | RS1(dst) | IMM_EXTEND(16));
        }
        SLJIT_ASSERT(dst == src2);
        return SLJIT_SUCCESS;
 
    case SLJIT_MOV_S16:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
            FAIL_IF(push_inst(compiler, SLLI | WORD | RD(dst) | RS1(src2) | IMM_EXTEND(16)));
            return push_inst(compiler, SRAI | WORD | RD(dst) | RS1(dst) | IMM_EXTEND(16));
        }
        SLJIT_ASSERT(dst == src2);
        return SLJIT_SUCCESS;
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    case SLJIT_MOV_U32:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
            FAIL_IF(push_inst(compiler, SLLI | RD(dst) | RS1(src2) | IMM_I(32)));
            return push_inst(compiler, SRLI | RD(dst) | RS1(dst) | IMM_I(32));
        }
        SLJIT_ASSERT(dst == src2);
        return SLJIT_SUCCESS;
 
    case SLJIT_MOV_S32:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE))
            return push_inst(compiler, ADDI | 0x8 | RD(dst) | RS1(src2) | IMM_I(0));
        SLJIT_ASSERT(dst == src2);
        return SLJIT_SUCCESS;
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    case SLJIT_CLZ:
    case SLJIT_CTZ:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        return emit_clz_ctz(compiler, op, dst, src2);
 
    case SLJIT_REV:
    case SLJIT_REV_S32:
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    case SLJIT_REV_U32:
#endif /* SLJIT_CONFIG_RISCV_32 */
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        return emit_rev(compiler, op, dst, src2);
 
    case SLJIT_REV_U16:
    case SLJIT_REV_S16:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM));
        return emit_rev16(compiler, op, dst, src2);
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    case SLJIT_REV_U32:
        SLJIT_ASSERT(src1 == TMP_ZERO && !(flags & SRC2_IMM) && dst != TMP_REG1);
        FAIL_IF(emit_rev(compiler, op, dst, src2));
        if (dst == TMP_REG2)
            return SLJIT_SUCCESS;
        FAIL_IF(push_inst(compiler, SLLI | RD(dst) | RS1(dst) | IMM_I(32)));
        return push_inst(compiler, SRLI | RD(dst) | RS1(dst) | IMM_I(32));
#endif /* SLJIT_CONFIG_RISCV_32 */
 
    case SLJIT_ADD:
        /* Overflow computation (both add and sub): overflow = src1_sign ^ src2_sign ^ result_sign ^ carry_flag */
        is_overflow = GET_FLAG_TYPE(op) == SLJIT_OVERFLOW;
        carry_src_r = GET_FLAG_TYPE(op) == SLJIT_CARRY;
 
        if (flags & SRC2_IMM) {
            if (is_overflow) {
                if (src2 >= 0)
                    FAIL_IF(push_inst(compiler, ADDI | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(0)));
                else
                    FAIL_IF(push_inst(compiler, XORI | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(-1)));
            }
            else if (op & SLJIT_SET_Z)
                FAIL_IF(push_inst(compiler, ADDI | WORD | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(src2)));
 
            /* Only the zero flag is needed. */
            if (!(flags & UNUSED_DEST) || (op & VARIABLE_FLAG_MASK))
                FAIL_IF(push_inst(compiler, ADDI | WORD | RD(dst) | RS1(src1) | IMM_I(src2)));
        }
        else {
            if (is_overflow)
                FAIL_IF(push_inst(compiler, XOR | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2)));
            else if (op & SLJIT_SET_Z)
                FAIL_IF(push_inst(compiler, ADD | WORD | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2)));
 
            if (is_overflow || carry_src_r != 0) {
                if (src1 != dst)
                    carry_src_r = (sljit_s32)src1;
                else if (src2 != dst)
                    carry_src_r = (sljit_s32)src2;
                else {
                    FAIL_IF(push_inst(compiler, ADDI | RD(OTHER_FLAG) | RS1(src1) | IMM_I(0)));
                    carry_src_r = OTHER_FLAG;
                }
            }
 
            /* Only the zero flag is needed. */
            if (!(flags & UNUSED_DEST) || (op & VARIABLE_FLAG_MASK))
                FAIL_IF(push_inst(compiler, ADD | WORD | RD(dst) | RS1(src1) | RS2(src2)));
        }
 
        /* Carry is zero if a + b >= a or a + b >= b, otherwise it is 1. */
        if (is_overflow || carry_src_r != 0) {
            if (flags & SRC2_IMM)
                FAIL_IF(push_inst(compiler, SLTUI | RD(OTHER_FLAG) | RS1(dst) | IMM_I(src2)));
            else
                FAIL_IF(push_inst(compiler, SLTU | RD(OTHER_FLAG) | RS1(dst) | RS2(carry_src_r)));
        }
 
        if (!is_overflow)
            return SLJIT_SUCCESS;
 
        FAIL_IF(push_inst(compiler, XOR | RD(TMP_REG1) | RS1(dst) | RS2(EQUAL_FLAG)));
        if (op & SLJIT_SET_Z)
            FAIL_IF(push_inst(compiler, ADDI | RD(EQUAL_FLAG) | RS1(dst) | IMM_I(0)));
        FAIL_IF(push_inst(compiler, SRLI | WORD | RD(TMP_REG1) | RS1(TMP_REG1) | IMM_EXTEND(31)));
        return push_inst(compiler, XOR | RD(OTHER_FLAG) | RS1(TMP_REG1) | RS2(OTHER_FLAG));
 
    case SLJIT_ADDC:
        carry_src_r = GET_FLAG_TYPE(op) == SLJIT_CARRY;
 
        if (flags & SRC2_IMM) {
            FAIL_IF(push_inst(compiler, ADDI | WORD | RD(dst) | RS1(src1) | IMM_I(src2)));
        } else {
            if (carry_src_r != 0) {
                if (src1 != dst)
                    carry_src_r = (sljit_s32)src1;
                else if (src2 != dst)
                    carry_src_r = (sljit_s32)src2;
                else {
                    FAIL_IF(push_inst(compiler, ADDI | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(0)));
                    carry_src_r = EQUAL_FLAG;
                }
            }
 
            FAIL_IF(push_inst(compiler, ADD | WORD | RD(dst) | RS1(src1) | RS2(src2)));
        }
 
        /* Carry is zero if a + b >= a or a + b >= b, otherwise it is 1. */
        if (carry_src_r != 0) {
            if (flags & SRC2_IMM)
                FAIL_IF(push_inst(compiler, SLTUI | RD(EQUAL_FLAG) | RS1(dst) | IMM_I(src2)));
            else
                FAIL_IF(push_inst(compiler, SLTU | RD(EQUAL_FLAG) | RS1(dst) | RS2(carry_src_r)));
        }
 
        FAIL_IF(push_inst(compiler, ADD | WORD | RD(dst) | RS1(dst) | RS2(OTHER_FLAG)));
 
        if (carry_src_r == 0)
            return SLJIT_SUCCESS;
 
        /* Set ULESS_FLAG (dst == 0) && (OTHER_FLAG == 1). */
        FAIL_IF(push_inst(compiler, SLTU | RD(OTHER_FLAG) | RS1(dst) | RS2(OTHER_FLAG)));
        /* Set carry flag. */
        return push_inst(compiler, OR | RD(OTHER_FLAG) | RS1(OTHER_FLAG) | RS2(EQUAL_FLAG));
 
    case SLJIT_SUB:
        if ((flags & SRC2_IMM) && src2 == SIMM_MIN) {
            FAIL_IF(push_inst(compiler, ADDI | RD(TMP_REG2) | RS1(TMP_ZERO) | IMM_I(src2)));
            src2 = TMP_REG2;
            flags &= ~SRC2_IMM;
        }
 
        is_handled = 0;
 
        if (flags & SRC2_IMM) {
            if (GET_FLAG_TYPE(op) == SLJIT_LESS) {
                FAIL_IF(push_inst(compiler, SLTUI | RD(OTHER_FLAG) | RS1(src1) | IMM_I(src2)));
                is_handled = 1;
            }
            else if (GET_FLAG_TYPE(op) == SLJIT_SIG_LESS) {
                FAIL_IF(push_inst(compiler, SLTI | RD(OTHER_FLAG) | RS1(src1) | IMM_I(src2)));
                is_handled = 1;
            }
        }
 
        if (!is_handled && GET_FLAG_TYPE(op) >= SLJIT_LESS && GET_FLAG_TYPE(op) <= SLJIT_SIG_LESS_EQUAL) {
            is_handled = 1;
 
            if (flags & SRC2_IMM) {
                reg = (src1 == TMP_REG1) ? TMP_REG2 : TMP_REG1;
                FAIL_IF(push_inst(compiler, ADDI | RD(reg) | RS1(TMP_ZERO) | IMM_I(src2)));
                src2 = reg;
                flags &= ~SRC2_IMM;
            }
 
            switch (GET_FLAG_TYPE(op)) {
            case SLJIT_LESS:
                FAIL_IF(push_inst(compiler, SLTU | RD(OTHER_FLAG) | RS1(src1) | RS2(src2)));
                break;
            case SLJIT_GREATER:
                FAIL_IF(push_inst(compiler, SLTU | RD(OTHER_FLAG) | RS1(src2) | RS2(src1)));
                break;
            case SLJIT_SIG_LESS:
                FAIL_IF(push_inst(compiler, SLT | RD(OTHER_FLAG) | RS1(src1) | RS2(src2)));
                break;
            case SLJIT_SIG_GREATER:
                FAIL_IF(push_inst(compiler, SLT | RD(OTHER_FLAG) | RS1(src2) | RS2(src1)));
                break;
            }
        }
 
        if (is_handled) {
            if (flags & SRC2_IMM) {
                if (op & SLJIT_SET_Z)
                    FAIL_IF(push_inst(compiler, ADDI | WORD | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(-src2)));
                if (!(flags & UNUSED_DEST))
                    return push_inst(compiler, ADDI | WORD | RD(dst) | RS1(src1) | IMM_I(-src2));
            }
            else {
                if (op & SLJIT_SET_Z)
                    FAIL_IF(push_inst(compiler, SUB | WORD | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2)));
                if (!(flags & UNUSED_DEST))
                    return push_inst(compiler, SUB | WORD | RD(dst) | RS1(src1) | RS2(src2));
            }
            return SLJIT_SUCCESS;
        }
 
        is_overflow = GET_FLAG_TYPE(op) == SLJIT_OVERFLOW;
        is_carry = GET_FLAG_TYPE(op) == SLJIT_CARRY;
 
        if (flags & SRC2_IMM) {
            if (is_overflow) {
                if (src2 >= 0)
                    FAIL_IF(push_inst(compiler, ADDI | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(0)));
                else
                    FAIL_IF(push_inst(compiler, XORI | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(-1)));
            }
            else if (op & SLJIT_SET_Z)
                FAIL_IF(push_inst(compiler, ADDI | WORD | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(-src2)));
 
            if (is_overflow || is_carry)
                FAIL_IF(push_inst(compiler, SLTUI | RD(OTHER_FLAG) | RS1(src1) | IMM_I(src2)));
 
            /* Only the zero flag is needed. */
            if (!(flags & UNUSED_DEST) || (op & VARIABLE_FLAG_MASK))
                FAIL_IF(push_inst(compiler, ADDI | WORD | RD(dst) | RS1(src1) | IMM_I(-src2)));
        }
        else {
            if (is_overflow)
                FAIL_IF(push_inst(compiler, XOR | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2)));
            else if (op & SLJIT_SET_Z)
                FAIL_IF(push_inst(compiler, SUB | WORD | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2)));
 
            if (is_overflow || is_carry)
                FAIL_IF(push_inst(compiler, SLTU | RD(OTHER_FLAG) | RS1(src1) | RS2(src2)));
 
            /* Only the zero flag is needed. */
            if (!(flags & UNUSED_DEST) || (op & VARIABLE_FLAG_MASK))
                FAIL_IF(push_inst(compiler, SUB | WORD | RD(dst) | RS1(src1) | RS2(src2)));
        }
 
        if (!is_overflow)
            return SLJIT_SUCCESS;
 
        FAIL_IF(push_inst(compiler, XOR | RD(TMP_REG1) | RS1(dst) | RS2(EQUAL_FLAG)));
        if (op & SLJIT_SET_Z)
            FAIL_IF(push_inst(compiler, ADDI | RD(EQUAL_FLAG) | RS1(dst) | IMM_I(0)));
        FAIL_IF(push_inst(compiler, SRLI | WORD | RD(TMP_REG1) | RS1(TMP_REG1) | IMM_EXTEND(31)));
        return push_inst(compiler, XOR | RD(OTHER_FLAG) | RS1(TMP_REG1) | RS2(OTHER_FLAG));
 
    case SLJIT_SUBC:
        if ((flags & SRC2_IMM) && src2 == SIMM_MIN) {
            FAIL_IF(push_inst(compiler, ADDI | RD(TMP_REG2) | RS1(TMP_ZERO) | IMM_I(src2)));
            src2 = TMP_REG2;
            flags &= ~SRC2_IMM;
        }
 
        is_carry = GET_FLAG_TYPE(op) == SLJIT_CARRY;
 
        if (flags & SRC2_IMM) {
            if (is_carry)
                FAIL_IF(push_inst(compiler, SLTUI | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(src2)));
 
            FAIL_IF(push_inst(compiler, ADDI | WORD | RD(dst) | RS1(src1) | IMM_I(-src2)));
        }
        else {
            if (is_carry)
                FAIL_IF(push_inst(compiler, SLTU | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2)));
 
            FAIL_IF(push_inst(compiler, SUB | WORD | RD(dst) | RS1(src1) | RS2(src2)));
        }
 
        if (is_carry)
            FAIL_IF(push_inst(compiler, SLTU | RD(TMP_REG1) | RS1(dst) | RS2(OTHER_FLAG)));
 
        FAIL_IF(push_inst(compiler, SUB | WORD | RD(dst) | RS1(dst) | RS2(OTHER_FLAG)));
 
        if (!is_carry)
            return SLJIT_SUCCESS;
 
        return push_inst(compiler, OR | RD(OTHER_FLAG) | RS1(EQUAL_FLAG) | RS2(TMP_REG1));
 
    case SLJIT_MUL:
        SLJIT_ASSERT(!(flags & SRC2_IMM));
 
        if (GET_FLAG_TYPE(op) != SLJIT_OVERFLOW)
            return push_inst(compiler, MUL | WORD | RD(dst) | RS1(src1) | RS2(src2));
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
        if (word) {
            FAIL_IF(push_inst(compiler, MUL | RD(OTHER_FLAG) | RS1(src1) | RS2(src2)));
            FAIL_IF(push_inst(compiler, MUL | 0x8 | RD(dst) | RS1(src1) | RS2(src2)));
            return push_inst(compiler, SUB | RD(OTHER_FLAG) | RS1(dst) | RS2(OTHER_FLAG));
        }
#endif /* SLJIT_CONFIG_RISCV_64 */
 
        FAIL_IF(push_inst(compiler, MULH | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2)));
        FAIL_IF(push_inst(compiler, MUL | RD(dst) | RS1(src1) | RS2(src2)));
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
        FAIL_IF(push_inst(compiler, SRAI | RD(OTHER_FLAG) | RS1(dst) | IMM_I(31)));
#else /* !SLJIT_CONFIG_RISCV_32 */
        FAIL_IF(push_inst(compiler, SRAI | RD(OTHER_FLAG) | RS1(dst) | IMM_I(63)));
#endif /* SLJIT_CONFIG_RISCV_32 */
        return push_inst(compiler, SUB | RD(OTHER_FLAG) | RS1(EQUAL_FLAG) | RS2(OTHER_FLAG));
 
    case SLJIT_AND:
        EMIT_LOGICAL(ANDI, AND);
        return SLJIT_SUCCESS;
 
    case SLJIT_OR:
        EMIT_LOGICAL(ORI, OR);
        return SLJIT_SUCCESS;
 
    case SLJIT_XOR:
        EMIT_LOGICAL(XORI, XOR);
        return SLJIT_SUCCESS;
 
    case SLJIT_SHL:
    case SLJIT_MSHL:
        EMIT_SHIFT(SLLI, SLL);
        break;
 
    case SLJIT_LSHR:
    case SLJIT_MLSHR:
        EMIT_SHIFT(SRLI, SRL);
        break;
 
    case SLJIT_ASHR:
    case SLJIT_MASHR:
        EMIT_SHIFT(SRAI, SRA);
        break;
 
    case SLJIT_ROTL:
    case SLJIT_ROTR:
        if (flags & SRC2_IMM) {
            SLJIT_ASSERT(src2 != 0);
 
            op_imm = (GET_OPCODE(op) == SLJIT_ROTL) ? SLLI : SRLI;
            FAIL_IF(push_inst(compiler, op_imm | WORD | RD(OTHER_FLAG) | RS1(src1) | IMM_I(src2)));
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
            src2 = ((op & SLJIT_32) ? 32 : 64) - src2;
#else /* !SLJIT_CONFIG_RISCV_64 */
            src2 = 32 - src2;
#endif /* SLJIT_CONFIG_RISCV_64 */
            op_imm = (GET_OPCODE(op) == SLJIT_ROTL) ? SRLI : SLLI;
            FAIL_IF(push_inst(compiler, op_imm | WORD | RD(dst) | RS1(src1) | IMM_I(src2)));
            return push_inst(compiler, OR | RD(dst) | RS1(dst) | RS2(OTHER_FLAG));
        }
 
        if (src2 == TMP_ZERO) {
            if (dst != src1)
                return push_inst(compiler, ADDI | WORD | RD(dst) | RS1(src1) | IMM_I(0));
            return SLJIT_SUCCESS;
        }
 
        FAIL_IF(push_inst(compiler, SUB | WORD | RD(EQUAL_FLAG) | RS1(TMP_ZERO) | RS2(src2)));
        op_reg = (GET_OPCODE(op) == SLJIT_ROTL) ? SLL : SRL;
        FAIL_IF(push_inst(compiler, op_reg | WORD | RD(OTHER_FLAG) | RS1(src1) | RS2(src2)));
        op_reg = (GET_OPCODE(op) == SLJIT_ROTL) ? SRL : SLL;
        FAIL_IF(push_inst(compiler, op_reg | WORD | RD(dst) | RS1(src1) | RS2(EQUAL_FLAG)));
        return push_inst(compiler, OR | RD(dst) | RS1(dst) | RS2(OTHER_FLAG));
 
    default:
        SLJIT_UNREACHABLE();
        return SLJIT_SUCCESS;
    }
 
    if (flags & SRC2_IMM) {
        if (op & SLJIT_SET_Z)
            FAIL_IF(push_inst(compiler, op_imm | WORD | RD(EQUAL_FLAG) | RS1(src1) | IMM_I(src2)));
 
        if (flags & UNUSED_DEST)
            return SLJIT_SUCCESS;
        return push_inst(compiler, op_imm | WORD | RD(dst) | RS1(src1) | IMM_I(src2));
    }
 
    if (op & SLJIT_SET_Z)
        FAIL_IF(push_inst(compiler, op_reg | WORD | RD(EQUAL_FLAG) | RS1(src1) | RS2(src2)));
 
    if (flags & UNUSED_DEST)
        return SLJIT_SUCCESS;
    return push_inst(compiler, op_reg | WORD | RD(dst) | RS1(src1) | RS2(src2));
}
 
#undef IMM_EXTEND
 
static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2, sljit_sw src2w)
{
    /* arg1 goes to TMP_REG1 or src reg
       arg2 goes to TMP_REG2, imm or src reg
       TMP_REG3 can be used for caching
       result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
    sljit_s32 dst_r = TMP_REG2;
    sljit_s32 src1_r;
    sljit_sw src2_r = 0;
    sljit_s32 src2_tmp_reg = (GET_OPCODE(op) >= SLJIT_OP2_BASE && FAST_IS_REG(src1)) ? TMP_REG1 : TMP_REG2;
 
    if (!(flags & ALT_KEEP_CACHE)) {
        compiler->cache_arg = 0;
        compiler->cache_argw = 0;
    }
 
    if (dst == 0) {
        SLJIT_ASSERT(HAS_FLAGS(op));
        flags |= UNUSED_DEST;
        dst = TMP_REG2;
    }
    else if (FAST_IS_REG(dst)) {
        dst_r = dst;
        flags |= REG_DEST;
        if (flags & MOVE_OP)
            src2_tmp_reg = dst_r;
    }
    else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw))
        flags |= SLOW_DEST;
 
    if (flags & IMM_OP) {
        if (src2 == SLJIT_IMM && src2w != 0 && src2w <= SIMM_MAX && src2w >= SIMM_MIN) {
            flags |= SRC2_IMM;
            src2_r = src2w;
        }
        else if ((flags & CUMULATIVE_OP) && src1 == SLJIT_IMM && src1w != 0 && src1w <= SIMM_MAX && src1w >= SIMM_MIN) {
            flags |= SRC2_IMM;
            src2_r = src1w;
 
            /* And swap arguments. */
            src1 = src2;
            src1w = src2w;
            src2 = SLJIT_IMM;
            /* src2w = src2_r unneeded. */
        }
    }
 
    /* Source 1. */
    if (FAST_IS_REG(src1)) {
        src1_r = src1;
        flags |= REG1_SOURCE;
    } else if (src1 == SLJIT_IMM) {
        if (src1w) {
            FAIL_IF(load_immediate(compiler, TMP_REG1, src1w, TMP_REG3));
            src1_r = TMP_REG1;
        }
        else
            src1_r = TMP_ZERO;
    } else {
        if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w))
            FAIL_IF(compiler->error);
        else
            flags |= SLOW_SRC1;
        src1_r = TMP_REG1;
    }
 
    /* Source 2. */
    if (FAST_IS_REG(src2)) {
        src2_r = src2;
        flags |= REG2_SOURCE;
        if ((flags & (REG_DEST | MOVE_OP)) == MOVE_OP)
            dst_r = (sljit_s32)src2_r;
    } else if (src2 == SLJIT_IMM) {
        if (!(flags & SRC2_IMM)) {
            if (src2w) {
                FAIL_IF(load_immediate(compiler, src2_tmp_reg, src2w, TMP_REG3));
                src2_r = src2_tmp_reg;
            } else {
                src2_r = TMP_ZERO;
                if (flags & MOVE_OP) {
                    if (dst & SLJIT_MEM)
                        dst_r = 0;
                    else
                        op = SLJIT_MOV;
                }
            }
        }
    } else {
        if (getput_arg_fast(compiler, flags | LOAD_DATA, src2_tmp_reg, src2, src2w))
            FAIL_IF(compiler->error);
        else
            flags |= SLOW_SRC2;
        src2_r = src2_tmp_reg;
    }
 
    if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
        SLJIT_ASSERT(src2_r == TMP_REG2);
        if ((flags & SLOW_DEST) && !can_cache(src2, src2w, src1, src1w) && can_cache(src2, src2w, dst, dstw)) {
            FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
            FAIL_IF(getput_arg(compiler, flags | LOAD_DATA | MEM_USE_TMP2, TMP_REG2, src2, src2w, dst, dstw));
        } else {
            FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
            FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
        }
    }
    else if (flags & SLOW_SRC1)
        FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
    else if (flags & SLOW_SRC2)
        FAIL_IF(getput_arg(compiler, flags | LOAD_DATA | ((src1_r == TMP_REG1) ? MEM_USE_TMP2 : 0), src2_tmp_reg, src2, src2w, dst, dstw));
 
    FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
 
    if (dst & SLJIT_MEM) {
        if (!(flags & SLOW_DEST)) {
            getput_arg_fast(compiler, flags, dst_r, dst, dstw);
            return compiler->error;
        }
        return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0);
    }
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
{
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    sljit_ins word = (sljit_ins)(op & SLJIT_32) >> 5;
 
    SLJIT_ASSERT(word == 0 || word == 0x8);
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op0(compiler, op));
 
    switch (GET_OPCODE(op)) {
    case SLJIT_BREAKPOINT:
        return push_inst(compiler, EBREAK);
    case SLJIT_NOP:
        return push_inst(compiler, ADDI | RD(TMP_ZERO) | RS1(TMP_ZERO) | IMM_I(0));
    case SLJIT_LMUL_UW:
        FAIL_IF(push_inst(compiler, ADDI | RD(TMP_REG1) | RS1(SLJIT_R1) | IMM_I(0)));
        FAIL_IF(push_inst(compiler, MULHU | RD(SLJIT_R1) | RS1(SLJIT_R0) | RS2(SLJIT_R1)));
        return push_inst(compiler, MUL | RD(SLJIT_R0) | RS1(SLJIT_R0) | RS2(TMP_REG1));
    case SLJIT_LMUL_SW:
        FAIL_IF(push_inst(compiler, ADDI | RD(TMP_REG1) | RS1(SLJIT_R1) | IMM_I(0)));
        FAIL_IF(push_inst(compiler, MULH | RD(SLJIT_R1) | RS1(SLJIT_R0) | RS2(SLJIT_R1)));
        return push_inst(compiler, MUL | RD(SLJIT_R0) | RS1(SLJIT_R0) | RS2(TMP_REG1));
    case SLJIT_DIVMOD_UW:
        FAIL_IF(push_inst(compiler, ADDI | RD(TMP_REG1) | RS1(SLJIT_R0) | IMM_I(0)));
        FAIL_IF(push_inst(compiler, DIVU | WORD | RD(SLJIT_R0) | RS1(SLJIT_R0) | RS2(SLJIT_R1)));
        return push_inst(compiler, REMU | WORD | RD(SLJIT_R1) | RS1(TMP_REG1) | RS2(SLJIT_R1));
    case SLJIT_DIVMOD_SW:
        FAIL_IF(push_inst(compiler, ADDI | RD(TMP_REG1) | RS1(SLJIT_R0) | IMM_I(0)));
        FAIL_IF(push_inst(compiler, DIV | WORD | RD(SLJIT_R0) | RS1(SLJIT_R0) | RS2(SLJIT_R1)));
        return push_inst(compiler, REM | WORD | RD(SLJIT_R1) | RS1(TMP_REG1) | RS2(SLJIT_R1));
    case SLJIT_DIV_UW:
        return push_inst(compiler, DIVU | WORD | RD(SLJIT_R0) | RS1(SLJIT_R0) | RS2(SLJIT_R1));
    case SLJIT_DIV_SW:
        return push_inst(compiler, DIV | WORD | RD(SLJIT_R0) | RS1(SLJIT_R0) | RS2(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 flags = 0;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
    ADJUST_LOCAL_OFFSET(dst, dstw);
    ADJUST_LOCAL_OFFSET(src, srcw);
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    if (op & SLJIT_32)
        flags = INT_DATA | SIGNED_DATA;
#endif
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV:
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    case SLJIT_MOV_U32:
    case SLJIT_MOV_S32:
    case SLJIT_MOV32:
#endif
    case SLJIT_MOV_P:
        return emit_op(compiler, SLJIT_MOV, WORD_DATA | MOVE_OP, dst, dstw, TMP_ZERO, 0, src, srcw);
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    case SLJIT_MOV_U32:
        return emit_op(compiler, SLJIT_MOV_U32, INT_DATA | MOVE_OP, dst, dstw, TMP_ZERO, 0, src, (src == SLJIT_IMM) ? (sljit_u32)srcw : srcw);
 
    case SLJIT_MOV_S32:
    /* Logical operators have no W variant, so sign extended input is necessary for them. */
    case SLJIT_MOV32:
        return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA | MOVE_OP, dst, dstw, TMP_ZERO, 0, src, (src == SLJIT_IMM) ? (sljit_s32)srcw : srcw);
#endif
 
    case SLJIT_MOV_U8:
        return emit_op(compiler, op, BYTE_DATA | MOVE_OP, dst, dstw, TMP_ZERO, 0, src, (src == SLJIT_IMM) ? (sljit_u8)srcw : srcw);
 
    case SLJIT_MOV_S8:
        return emit_op(compiler, op, BYTE_DATA | SIGNED_DATA | MOVE_OP, dst, dstw, TMP_ZERO, 0, src, (src == SLJIT_IMM) ? (sljit_s8)srcw : srcw);
 
    case SLJIT_MOV_U16:
        return emit_op(compiler, op, HALF_DATA | MOVE_OP, dst, dstw, TMP_ZERO, 0, src, (src == SLJIT_IMM) ? (sljit_u16)srcw : srcw);
 
    case SLJIT_MOV_S16:
        return emit_op(compiler, op, HALF_DATA | SIGNED_DATA | MOVE_OP, dst, dstw, TMP_ZERO, 0, src, (src == SLJIT_IMM) ? (sljit_s16)srcw : srcw);
 
    case SLJIT_CLZ:
    case SLJIT_CTZ:
    case SLJIT_REV:
        return emit_op(compiler, op, flags, dst, dstw, TMP_ZERO, 0, src, srcw);
 
    case SLJIT_REV_U16:
    case SLJIT_REV_S16:
        return emit_op(compiler, op, HALF_DATA, dst, dstw, TMP_ZERO, 0, src, srcw);
 
    case SLJIT_REV_U32:
    case SLJIT_REV_S32:
        return emit_op(compiler, op | SLJIT_32, INT_DATA, dst, dstw, TMP_ZERO, 0, src, srcw);
    }
 
    SLJIT_UNREACHABLE();
    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 flags = 0;
 
    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);
 
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    if (op & SLJIT_32) {
        flags |= INT_DATA | SIGNED_DATA;
        if (src1 == SLJIT_IMM)
            src1w = (sljit_s32)src1w;
        if (src2 == SLJIT_IMM)
            src2w = (sljit_s32)src2w;
    }
#endif
 
    switch (GET_OPCODE(op)) {
    case SLJIT_ADD:
    case SLJIT_ADDC:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
        return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
 
    case SLJIT_SUB:
    case SLJIT_SUBC:
        compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
        return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
 
    case SLJIT_MUL:
        compiler->status_flags_state = 0;
        return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w);
 
    case SLJIT_AND:
    case SLJIT_OR:
    case SLJIT_XOR:
        return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
 
    case SLJIT_SHL:
    case SLJIT_MSHL:
    case SLJIT_LSHR:
    case SLJIT_MLSHR:
    case SLJIT_ASHR:
    case SLJIT_MASHR:
    case SLJIT_ROTL:
    case SLJIT_ROTR:
        if (src2 == SLJIT_IMM) {
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
            src2w &= 0x1f;
#else /* !SLJIT_CONFIG_RISCV_32 */
            if (op & SLJIT_32)
                src2w &= 0x1f;
            else
                src2w &= 0x3f;
#endif /* SLJIT_CONFIG_RISCV_32 */
        }
 
        return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
    }
 
    SLJIT_UNREACHABLE();
    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, 0, 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)
{
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    sljit_ins word = (sljit_ins)(op & SLJIT_32) >> 5;
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op2r(compiler, op, dst_reg, src1, src1w, src2, src2w));
 
    SLJIT_ASSERT(WORD == 0 || WORD == 0x8);
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MULADD:
        SLJIT_SKIP_CHECKS(compiler);
        FAIL_IF(sljit_emit_op2(compiler, SLJIT_MUL | (op & SLJIT_32), TMP_REG2, 0, src1, src1w, src2, src2w));
        return push_inst(compiler, ADD | WORD | RD(dst_reg) | RS1(dst_reg) | RS2(TMP_REG2));
    }
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_shift_into(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst_reg,
    sljit_s32 src1_reg,
    sljit_s32 src2_reg,
    sljit_s32 src3, sljit_sw src3w)
{
    sljit_s32 is_left;
    sljit_ins ins1, ins2, ins3;
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    sljit_ins word = (sljit_ins)(op & SLJIT_32) >> 5;
    sljit_s32 inp_flags = ((op & SLJIT_32) ? INT_DATA : WORD_DATA) | LOAD_DATA;
    sljit_sw bit_length = (op & SLJIT_32) ? 32 : 64;
#else /* !SLJIT_CONFIG_RISCV_64 */
    sljit_s32 inp_flags = WORD_DATA | LOAD_DATA;
    sljit_sw bit_length = 32;
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    SLJIT_ASSERT(WORD == 0 || WORD == 0x8);
 
    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);
 
    if (src3 == SLJIT_IMM) {
        src3w &= bit_length - 1;
 
        if (src3w == 0)
            return SLJIT_SUCCESS;
 
        if (is_left) {
            ins1 = SLLI | WORD | IMM_I(src3w);
            src3w = bit_length - src3w;
            ins2 = SRLI | WORD | IMM_I(src3w);
        } else {
            ins1 = SRLI | WORD | IMM_I(src3w);
            src3w = bit_length - src3w;
            ins2 = SLLI | WORD | IMM_I(src3w);
        }
 
        FAIL_IF(push_inst(compiler, ins1 | RD(dst_reg) | RS1(src1_reg)));
        FAIL_IF(push_inst(compiler, ins2 | RD(TMP_REG1) | RS1(src2_reg)));
        return push_inst(compiler, OR | RD(dst_reg) | RS1(dst_reg) | RS2(TMP_REG1));
    }
 
    if (src3 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, inp_flags, TMP_REG2, src3, src3w));
        src3 = TMP_REG2;
    } else if (dst_reg == src3) {
        push_inst(compiler, ADDI | WORD | RD(TMP_REG2) | RS1(src3) | IMM_I(0));
        src3 = TMP_REG2;
    }
 
    if (is_left) {
        ins1 = SLL;
        ins2 = SRLI;
        ins3 = SRL;
    } else {
        ins1 = SRL;
        ins2 = SLLI;
        ins3 = SLL;
    }
 
    FAIL_IF(push_inst(compiler, ins1 | WORD | RD(dst_reg) | RS1(src1_reg) | RS2(src3)));
 
    if (!(op & SLJIT_SHIFT_INTO_NON_ZERO)) {
        FAIL_IF(push_inst(compiler, ins2 | WORD | RD(TMP_REG1) | RS1(src2_reg) | IMM_I(1)));
        FAIL_IF(push_inst(compiler, XORI | RD(TMP_REG2) | RS1(src3) | IMM_I((sljit_ins)bit_length - 1)));
        src2_reg = TMP_REG1;
    } else
        FAIL_IF(push_inst(compiler, SUB | WORD | RD(TMP_REG2) | RS1(TMP_ZERO) | RS2(src3)));
 
    FAIL_IF(push_inst(compiler, ins3 | WORD | RD(TMP_REG1) | RS1(src2_reg) | RS2(TMP_REG2)));
    return push_inst(compiler, OR | RD(dst_reg) | RS1(dst_reg) | RS2(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, ADDI | RD(RETURN_ADDR_REG) | RS1(src) | IMM_I(0)));
        else
            FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw));
 
        return push_inst(compiler, JALR | RD(TMP_ZERO) | RS1(RETURN_ADDR_REG) | IMM_I(0));
    case SLJIT_SKIP_FRAMES_BEFORE_FAST_RETURN:
        return SLJIT_SUCCESS;
    case SLJIT_PREFETCH_L1:
    case SLJIT_PREFETCH_L2:
    case SLJIT_PREFETCH_L3:
    case SLJIT_PREFETCH_ONCE:
        return SLJIT_SUCCESS;
    }
 
    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;
 
    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, ADDI | RD(dst) | RS1(RETURN_ADDR_REG) | IMM_I(0));
 
        SLJIT_ASSERT(RETURN_ADDR_REG == TMP_REG2);
        break;
    case SLJIT_GET_RETURN_ADDRESS:
        dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
        FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, dst_r, SLJIT_MEM1(SLJIT_SP), compiler->local_size - SSIZE_OF(sw)));
        break;
    }
 
    if (dst & SLJIT_MEM)
        return emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw);
 
    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)
        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                                             */
/* --------------------------------------------------------------------- */
 
#define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_32) >> 7))
#define FMT(op) ((sljit_ins)((op & SLJIT_32) ^ SLJIT_32) << 17)
 
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)
{
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
#   define flags (sljit_u32)0
#else
    sljit_u32 flags = ((sljit_u32)(GET_OPCODE(op) == SLJIT_CONV_SW_FROM_F64)) << 21;
#endif
    sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
        src = TMP_FREG1;
    }
 
    FAIL_IF(push_inst(compiler, FCVT_W_S | FMT(op) | flags | RD(dst_r) | FRS1(src)));
 
    /* Store the integer value from a VFP register. */
    if (dst & SLJIT_MEM) {
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
        return emit_op_mem2(compiler, WORD_DATA, TMP_REG2, dst, dstw, 0, 0);
#else
        return emit_op_mem2(compiler, flags ? WORD_DATA : INT_DATA, TMP_REG2, dst, dstw, 0, 0);
#endif
    }
    return SLJIT_SUCCESS;
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
#   undef flags
#endif
}
 
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) {
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
        FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
#else /* SLJIT_CONFIG_RISCV_32 */
        FAIL_IF(emit_op_mem2(compiler, ((ins & (1 << 21)) ? WORD_DATA : INT_DATA) | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
#endif /* !SLJIT_CONFIG_RISCV_32 */
        src = TMP_REG1;
    } else if (src == SLJIT_IMM) {
        FAIL_IF(load_immediate(compiler, TMP_REG1, srcw, TMP_REG3));
        src = TMP_REG1;
    }
 
    FAIL_IF(push_inst(compiler, ins | FRD(dst_r) | RS1(src)));
 
    if (dst & SLJIT_MEM)
        return emit_op_mem2(compiler, DOUBLE_DATA | ((sljit_s32)(~ins >> 24) & 0x2), TMP_FREG1, dst, dstw, 0, 0);
    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 ins = FCVT_S_W | FMT(op);
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    if (op & SLJIT_32)
        ins |= F3(0x7);
#else /* !SLJIT_CONFIG_RISCV_32 */
    if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_SW)
        ins |= (1 << 21);
    else if (src == SLJIT_IMM)
        srcw = (sljit_s32)srcw;
 
    if (op != SLJIT_CONV_F64_FROM_S32)
        ins |= F3(0x7);
#endif /* SLJIT_CONFIG_RISCV_32 */
 
    return sljit_emit_fop1_conv_f64_from_w(compiler, ins, 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 ins = FCVT_S_WU | FMT(op);
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    if (op & SLJIT_32)
        ins |= F3(0x7);
#else /* !SLJIT_CONFIG_RISCV_32 */
    if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_UW)
        ins |= (1 << 21);
    else if (src == SLJIT_IMM)
        srcw = (sljit_u32)srcw;
 
    if (op != SLJIT_CONV_F64_FROM_S32)
        ins |= F3(0x7);
#endif /* SLJIT_CONFIG_RISCV_32 */
 
    return sljit_emit_fop1_conv_f64_from_w(compiler, ins, 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_ins inst;
 
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
        src1 = TMP_FREG1;
    }
 
    if (src2 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0));
        src2 = TMP_FREG2;
    }
 
    switch (GET_FLAG_TYPE(op)) {
    case SLJIT_F_EQUAL:
    case SLJIT_ORDERED_EQUAL:
        inst = FEQ_S | FMT(op) | RD(OTHER_FLAG) | FRS1(src1) | FRS2(src2);
        break;
    case SLJIT_F_LESS:
    case SLJIT_ORDERED_LESS:
        inst = FLT_S | FMT(op) | RD(OTHER_FLAG) | FRS1(src1) | FRS2(src2);
        break;
    case SLJIT_ORDERED_GREATER:
        inst = FLT_S | FMT(op) | RD(OTHER_FLAG) | FRS1(src2) | FRS2(src1);
        break;
    case SLJIT_F_GREATER:
    case SLJIT_UNORDERED_OR_GREATER:
        inst = FLE_S | FMT(op) | RD(OTHER_FLAG) | FRS1(src1) | FRS2(src2);
        break;
    case SLJIT_UNORDERED_OR_LESS:
        inst = FLE_S | FMT(op) | RD(OTHER_FLAG) | FRS1(src2) | FRS2(src1);
        break;
    case SLJIT_UNORDERED_OR_EQUAL:
        FAIL_IF(push_inst(compiler, FLT_S | FMT(op) | RD(OTHER_FLAG) | FRS1(src1) | FRS2(src2)));
        FAIL_IF(push_inst(compiler, FLT_S | FMT(op) | RD(TMP_REG1) | FRS1(src2) | FRS2(src1)));
        inst = OR | RD(OTHER_FLAG) | RS1(OTHER_FLAG) | RS2(TMP_REG1);
        break;
    default: /* SLJIT_UNORDERED */
        if (src1 == src2) {
            inst = FEQ_S | FMT(op) | RD(OTHER_FLAG) | FRS1(src1) | FRS2(src1);
            break;
        }
        FAIL_IF(push_inst(compiler, FEQ_S | FMT(op) | RD(OTHER_FLAG) | FRS1(src1) | FRS2(src1)));
        FAIL_IF(push_inst(compiler, FEQ_S | FMT(op) | RD(TMP_REG1) | FRS1(src2) | FRS2(src2)));
        inst = AND | RD(OTHER_FLAG) | RS1(OTHER_FLAG) | RS2(TMP_REG1);
        break;
    }
 
    return push_inst(compiler, inst);
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
    sljit_s32 dst, sljit_sw dstw,
    sljit_s32 src, sljit_sw srcw)
{
    sljit_s32 dst_r;
 
    CHECK_ERROR();
    compiler->cache_arg = 0;
    compiler->cache_argw = 0;
 
    SLJIT_COMPILE_ASSERT((SLJIT_32 == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
    SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
 
    if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
        op ^= SLJIT_32;
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
 
    if (src & SLJIT_MEM) {
        FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw));
        src = dst_r;
    }
 
    switch (GET_OPCODE(op)) {
    case SLJIT_MOV_F64:
        if (src != dst_r) {
            if (!(dst & SLJIT_MEM))
                FAIL_IF(push_inst(compiler, FSGNJ_S | FMT(op) | FRD(dst_r) | FRS1(src) | FRS2(src)));
            else
                dst_r = src;
        }
        break;
    case SLJIT_NEG_F64:
        FAIL_IF(push_inst(compiler, FSGNJN_S | FMT(op) | FRD(dst_r) | FRS1(src) | FRS2(src)));
        break;
    case SLJIT_ABS_F64:
        FAIL_IF(push_inst(compiler, FSGNJX_S | FMT(op) | FRD(dst_r) | FRS1(src) | FRS2(src)));
        break;
    case SLJIT_CONV_F64_FROM_F32:
        /* The SLJIT_32 bit is inverted because sljit_f32 needs to be loaded from the memory. */
        FAIL_IF(push_inst(compiler, FCVT_S_D | ((op & SLJIT_32) ? (1 << 25) : ((1 << 20) | F3(7))) | FRD(dst_r) | FRS1(src)));
        op ^= SLJIT_32;
        break;
    }
 
    if (dst & SLJIT_MEM)
        return emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0);
    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, flags = 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);
 
    compiler->cache_arg = 0;
    compiler->cache_argw = 0;
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG2;
 
    if (src1 & SLJIT_MEM) {
        if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) {
            FAIL_IF(compiler->error);
            src1 = TMP_FREG1;
        } else
            flags |= SLOW_SRC1;
    }
 
    if (src2 & SLJIT_MEM) {
        if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) {
            FAIL_IF(compiler->error);
            src2 = TMP_FREG2;
        } else
            flags |= SLOW_SRC2;
    }
 
    if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
        if ((dst & SLJIT_MEM) && !can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
            FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
            FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
        } else {
            FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
            FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
        }
    }
    else if (flags & SLOW_SRC1)
        FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
    else if (flags & SLOW_SRC2)
        FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
 
    if (flags & SLOW_SRC1)
        src1 = TMP_FREG1;
    if (flags & SLOW_SRC2)
        src2 = TMP_FREG2;
 
    switch (GET_OPCODE(op)) {
    case SLJIT_ADD_F64:
        FAIL_IF(push_inst(compiler, FADD_S | FMT(op) | FRD(dst_r) | FRS1(src1) | FRS2(src2)));
        break;
 
    case SLJIT_SUB_F64:
        FAIL_IF(push_inst(compiler, FSUB_S | FMT(op) | FRD(dst_r) | FRS1(src1) | FRS2(src2)));
        break;
 
    case SLJIT_MUL_F64:
        FAIL_IF(push_inst(compiler, FMUL_S | FMT(op) | FRD(dst_r) | FRS1(src1) | FRS2(src2)));
        break;
 
    case SLJIT_DIV_F64:
        FAIL_IF(push_inst(compiler, FDIV_S | FMT(op) | FRD(dst_r) | FRS1(src1) | FRS2(src2)));
        break;
 
    case SLJIT_COPYSIGN_F64:
        return push_inst(compiler, FSGNJ_S | FMT(op) | FRD(dst_r) | FRS1(src1) | FRS2(src2));
    }
 
    if (dst_r != dst)
        FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0));
 
    return SLJIT_SUCCESS;
}
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset32(struct sljit_compiler *compiler,
    sljit_s32 freg, sljit_f32 value)
{
    union {
        sljit_s32 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, FMV_W_X | RS1(TMP_ZERO) | FRD(freg));
 
    FAIL_IF(load_immediate(compiler, TMP_REG1, u.imm, TMP_REG3));
    return push_inst(compiler, FMV_W_X | RS1(TMP_REG1) | FRD(freg));
}
 
/* --------------------------------------------------------------------- */
/*  Conditional instructions                                             */
/* --------------------------------------------------------------------- */
 
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;
}
 
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
#define BRANCH_LENGTH   ((sljit_ins)(3 * sizeof(sljit_ins)) << 7)
#else
#define BRANCH_LENGTH   ((sljit_ins)(7 * sizeof(sljit_ins)) << 7)
#endif
 
static sljit_ins get_jump_instruction(sljit_s32 type)
{
    switch (type) {
    case SLJIT_EQUAL:
        return BNE | RS1(EQUAL_FLAG) | RS2(TMP_ZERO);
    case SLJIT_NOT_EQUAL:
        return BEQ | RS1(EQUAL_FLAG) | RS2(TMP_ZERO);
    case SLJIT_LESS:
    case SLJIT_GREATER:
    case SLJIT_SIG_LESS:
    case SLJIT_SIG_GREATER:
    case SLJIT_OVERFLOW:
    case SLJIT_CARRY:
    case SLJIT_F_EQUAL:
    case SLJIT_ORDERED_EQUAL:
    case SLJIT_ORDERED_NOT_EQUAL:
    case SLJIT_F_LESS:
    case SLJIT_ORDERED_LESS:
    case SLJIT_ORDERED_GREATER:
    case SLJIT_F_LESS_EQUAL:
    case SLJIT_ORDERED_LESS_EQUAL:
    case SLJIT_ORDERED_GREATER_EQUAL:
    case SLJIT_ORDERED:
        return BEQ | RS1(OTHER_FLAG) | RS2(TMP_ZERO);
        break;
    case SLJIT_GREATER_EQUAL:
    case SLJIT_LESS_EQUAL:
    case SLJIT_SIG_GREATER_EQUAL:
    case SLJIT_SIG_LESS_EQUAL:
    case SLJIT_NOT_OVERFLOW:
    case SLJIT_NOT_CARRY:
    case SLJIT_F_NOT_EQUAL:
    case SLJIT_UNORDERED_OR_NOT_EQUAL:
    case SLJIT_UNORDERED_OR_EQUAL:
    case SLJIT_F_GREATER_EQUAL:
    case SLJIT_UNORDERED_OR_GREATER_EQUAL:
    case SLJIT_UNORDERED_OR_LESS_EQUAL:
    case SLJIT_F_GREATER:
    case SLJIT_UNORDERED_OR_GREATER:
    case SLJIT_UNORDERED_OR_LESS:
    case SLJIT_UNORDERED:
        return BNE | RS1(OTHER_FLAG) | RS2(TMP_ZERO);
    default:
        /* Not conditional branch. */
        return 0;
    }
}
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
{
    struct sljit_jump *jump;
    sljit_ins inst;
 
    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;
 
    inst = get_jump_instruction(type);
 
    if (inst != 0) {
        PTR_FAIL_IF(push_inst(compiler, inst | BRANCH_LENGTH));
        jump->flags |= IS_COND;
    }
 
    jump->addr = compiler->size;
    inst = JALR | RS1(TMP_REG1) | IMM_I(0);
 
    if (type >= SLJIT_FAST_CALL) {
        jump->flags |= IS_CALL;
        inst |= RD(RETURN_ADDR_REG);
    }
 
    PTR_FAIL_IF(push_inst(compiler, inst));
 
    /* 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);
}
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 src1, sljit_sw src1w,
    sljit_s32 src2, sljit_sw src2w)
{
    struct sljit_jump *jump;
    sljit_s32 flags;
    sljit_ins inst;
    sljit_s32 src2_tmp_reg = FAST_IS_REG(src1) ? TMP_REG1 : TMP_REG2;
 
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w));
    ADJUST_LOCAL_OFFSET(src1, src1w);
    ADJUST_LOCAL_OFFSET(src2, src2w);
 
    compiler->cache_arg = 0;
    compiler->cache_argw = 0;
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    flags = WORD_DATA | LOAD_DATA;
#else /* !SLJIT_CONFIG_RISCV_32 */
    flags = ((type & SLJIT_32) ? INT_DATA : WORD_DATA) | LOAD_DATA;
#endif /* SLJIT_CONFIG_RISCV_32 */
 
    if (src1 & SLJIT_MEM) {
        PTR_FAIL_IF(emit_op_mem2(compiler, flags, TMP_REG1, src1, src1w, src2, src2w));
        src1 = TMP_REG1;
    }
 
    if (src2 & SLJIT_MEM) {
        PTR_FAIL_IF(emit_op_mem2(compiler, flags, src2_tmp_reg, src2, src2w, 0, 0));
        src2 = src2_tmp_reg;
    }
 
    if (src1 == SLJIT_IMM) {
        if (src1w != 0) {
            PTR_FAIL_IF(load_immediate(compiler, TMP_REG1, src1w, TMP_REG3));
            src1 = TMP_REG1;
        }
        else
            src1 = TMP_ZERO;
    }
 
    if (src2 == SLJIT_IMM) {
        if (src2w != 0) {
            PTR_FAIL_IF(load_immediate(compiler, src2_tmp_reg, src2w, TMP_REG3));
            src2 = src2_tmp_reg;
        }
        else
            src2 = TMP_ZERO;
    }
 
    jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
    PTR_FAIL_IF(!jump);
    set_jump(jump, compiler, (sljit_u32)((type & SLJIT_REWRITABLE_JUMP) | IS_COND));
    type &= 0xff;
 
    switch (type) {
    case SLJIT_EQUAL:
        inst = BNE | RS1(src1) | RS2(src2) | BRANCH_LENGTH;
        break;
    case SLJIT_NOT_EQUAL:
        inst = BEQ | RS1(src1) | RS2(src2) | BRANCH_LENGTH;
        break;
    case SLJIT_LESS:
        inst = BGEU | RS1(src1) | RS2(src2) | BRANCH_LENGTH;
        break;
    case SLJIT_GREATER_EQUAL:
        inst = BLTU | RS1(src1) | RS2(src2) | BRANCH_LENGTH;
        break;
    case SLJIT_GREATER:
        inst = BGEU | RS1(src2) | RS2(src1) | BRANCH_LENGTH;
        break;
    case SLJIT_LESS_EQUAL:
        inst = BLTU | RS1(src2) | RS2(src1) | BRANCH_LENGTH;
        break;
    case SLJIT_SIG_LESS:
        inst = BGE | RS1(src1) | RS2(src2) | BRANCH_LENGTH;
        break;
    case SLJIT_SIG_GREATER_EQUAL:
        inst = BLT | RS1(src1) | RS2(src2) | BRANCH_LENGTH;
        break;
    case SLJIT_SIG_GREATER:
        inst = BGE | RS1(src2) | RS2(src1) | BRANCH_LENGTH;
        break;
    case SLJIT_SIG_LESS_EQUAL:
        inst = BLT | RS1(src2) | RS2(src1) | BRANCH_LENGTH;
        break;
    }
 
    PTR_FAIL_IF(push_inst(compiler, inst));
 
    jump->addr = compiler->size;
    PTR_FAIL_IF(push_inst(compiler, JALR | RD(TMP_ZERO) | RS1(TMP_REG1) | IMM_I(0)));
 
    /* Maximum number of instructions required for generating a constant. */
    compiler->size += JUMP_MAX_SIZE - 1;
    return jump;
}
 
#undef BRANCH_LENGTH
 
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_DATA | LOAD_DATA, TMP_REG1, src, srcw));
            src = TMP_REG1;
        }
        return push_inst(compiler, JALR | RD((type >= SLJIT_FAST_CALL) ? RETURN_ADDR_REG : TMP_ZERO) | RS1(src) | IMM_I(0));
    }
 
    /* 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_CALL : 0));
    jump->u.target = (sljit_uw)srcw;
 
    jump->addr = compiler->size;
    FAIL_IF(push_inst(compiler, JALR | RD((type >= SLJIT_FAST_CALL) ? RETURN_ADDR_REG : TMP_ZERO) | RS1(TMP_REG1) | IMM_I(0)));
 
    /* Maximum number of instructions required for generating a constant. */
    compiler->size += JUMP_MAX_SIZE - 1;
    return SLJIT_SUCCESS;
}
 
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_DATA | LOAD_DATA, TMP_REG1, src, srcw));
        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, ADDI | RD(TMP_REG1) | RS1(src) | IMM_I(0)));
            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 src_r, dst_r, invert;
    sljit_s32 saved_op = op;
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    sljit_s32 mem_type = WORD_DATA;
#else
    sljit_s32 mem_type = ((op & SLJIT_32) || op == SLJIT_MOV32) ? (INT_DATA | SIGNED_DATA) : WORD_DATA;
#endif
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    op = GET_OPCODE(op);
    dst_r = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;
 
    compiler->cache_arg = 0;
    compiler->cache_argw = 0;
 
    if (op >= SLJIT_ADD && (dst & SLJIT_MEM))
        FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, TMP_REG1, dst, dstw, dst, dstw));
 
    if (type < SLJIT_F_EQUAL) {
        src_r = OTHER_FLAG;
        invert = type & 0x1;
 
        switch (type) {
        case SLJIT_EQUAL:
        case SLJIT_NOT_EQUAL:
            FAIL_IF(push_inst(compiler, SLTUI | RD(dst_r) | RS1(EQUAL_FLAG) | IMM_I(1)));
            src_r = dst_r;
            break;
        case SLJIT_OVERFLOW:
        case SLJIT_NOT_OVERFLOW:
            if (compiler->status_flags_state & (SLJIT_CURRENT_FLAGS_ADD | SLJIT_CURRENT_FLAGS_SUB)) {
                src_r = OTHER_FLAG;
                break;
            }
            FAIL_IF(push_inst(compiler, SLTUI | RD(dst_r) | RS1(OTHER_FLAG) | IMM_I(1)));
            src_r = dst_r;
            invert ^= 0x1;
            break;
        }
    } else {
        invert = 0;
        src_r = OTHER_FLAG;
 
        switch (type) {
        case SLJIT_F_NOT_EQUAL:
        case SLJIT_UNORDERED_OR_NOT_EQUAL:
        case SLJIT_UNORDERED_OR_EQUAL: /* Not supported. */
        case SLJIT_F_GREATER_EQUAL:
        case SLJIT_UNORDERED_OR_GREATER_EQUAL:
        case SLJIT_UNORDERED_OR_LESS_EQUAL:
        case SLJIT_F_GREATER:
        case SLJIT_UNORDERED_OR_GREATER:
        case SLJIT_UNORDERED_OR_LESS:
        case SLJIT_UNORDERED:
            invert = 1;
            break;
        }
    }
 
    if (invert) {
        FAIL_IF(push_inst(compiler, XORI | RD(dst_r) | RS1(src_r) | IMM_I(1)));
        src_r = dst_r;
    }
 
    if (op < SLJIT_ADD) {
        if (dst & SLJIT_MEM)
            return emit_op_mem(compiler, mem_type, src_r, dst, dstw);
 
        if (src_r != dst_r)
            return push_inst(compiler, ADDI | RD(dst_r) | RS1(src_r) | IMM_I(0));
        return SLJIT_SUCCESS;
    }
 
    mem_type |= CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE;
 
    if (dst & SLJIT_MEM)
        return emit_op(compiler, saved_op, mem_type, dst, dstw, TMP_REG1, 0, src_r, 0);
    return emit_op(compiler, saved_op, mem_type, dst, dstw, dst, dstw, src_r, 0);
}
 
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 *ptr;
    sljit_uw size;
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
    sljit_ins word = (sljit_ins)(type & SLJIT_32) >> 5;
    sljit_s32 inp_flags = ((type & SLJIT_32) ? INT_DATA : WORD_DATA) | LOAD_DATA;
#else /* !SLJIT_CONFIG_RISCV_64 */
        sljit_s32 inp_flags = WORD_DATA | LOAD_DATA;
#endif /* SLJIT_CONFIG_RISCV_64 */
 
    SLJIT_ASSERT(WORD == 0 || WORD == 0x8);
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_select(compiler, type, dst_reg, src1, src1w, src2_reg));
 
    ADJUST_LOCAL_OFFSET(src1, src1w);
 
    if (dst_reg != src2_reg) {
        if (dst_reg == src1) {
            src1 = src2_reg;
            src1w = 0;
            type ^= 0x1;
        } else {
            if (ADDRESSING_DEPENDS_ON(src1, dst_reg)) {
                FAIL_IF(push_inst(compiler, ADDI | RD(TMP_REG1) | RS1(dst_reg) | IMM_I(0)));
 
                if ((src1 & REG_MASK) == dst_reg)
                    src1 = (src1 & ~REG_MASK) | TMP_REG1;
 
                if (OFFS_REG(src1) == dst_reg)
                    src1 = (src1 & ~OFFS_REG_MASK) | TO_OFFS_REG(TMP_REG1);
            }
 
            FAIL_IF(push_inst(compiler, ADDI | WORD | RD(dst_reg) | RS1(src2_reg) | IMM_I(0)));
        }
    }
 
    size = compiler->size;
 
    ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
    FAIL_IF(!ptr);
    compiler->size++;
 
    if (src1 & SLJIT_MEM) {
        FAIL_IF(emit_op_mem(compiler, inp_flags, dst_reg, src1, src1w));
    } else if (src1 == SLJIT_IMM) {
#if (defined SLJIT_CONFIG_RISCV_64 && SLJIT_CONFIG_RISCV_64)
        if (word)
            src1w = (sljit_s32)src1w;
#endif /* SLJIT_CONFIG_RISCV_64 */
        FAIL_IF(load_immediate(compiler, dst_reg, src1w, TMP_REG1));
    } else
        FAIL_IF(push_inst(compiler, ADDI | WORD | RD(dst_reg) | RS1(src1) | IMM_I(0)));
 
    size = compiler->size - size;
    *ptr = get_jump_instruction(type & ~SLJIT_32) | (sljit_ins)((size & 0x7) << 9) | (sljit_ins)((size >> 3) << 25);
    return SLJIT_SUCCESS;
}
 
#undef WORD
 
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 *ptr;
    sljit_uw size;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_fselect(compiler, type, dst_freg, src1, src1w, src2_freg));
 
    ADJUST_LOCAL_OFFSET(src1, src1w);
 
    if (dst_freg != src2_freg) {
        if (dst_freg == src1) {
            src1 = src2_freg;
            src1w = 0;
            type ^= 0x1;
        } else
            FAIL_IF(push_inst(compiler, FSGNJ_S | FMT(type) | FRD(dst_freg) | FRS1(src2_freg) | FRS2(src2_freg)));
    }
 
    size = compiler->size;
 
    ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
    FAIL_IF(!ptr);
    compiler->size++;
 
    if (src1 & SLJIT_MEM)
        FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(type) | LOAD_DATA, dst_freg, src1, src1w));
    else
        FAIL_IF(push_inst(compiler, FSGNJ_S | FMT(type) | FRD(dst_freg) | FRS1(src1) | FRS2(src1)));
 
    size = compiler->size - size;
    *ptr = get_jump_instruction(type & ~SLJIT_32) | (sljit_ins)((size & 0x7) << 9) | (sljit_ins)((size >> 3) << 25);
    return SLJIT_SUCCESS;
}
 
#undef FLOAT_DATA
#undef FMT
 
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_mem(struct sljit_compiler *compiler, sljit_s32 type,
    sljit_s32 reg,
    sljit_s32 mem, sljit_sw memw)
{
    sljit_s32 flags;
 
    CHECK_ERROR();
    CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw));
 
    if (!(reg & REG_PAIR_MASK))
        return sljit_emit_mem_unaligned(compiler, type, reg, mem, memw);
 
    if (SLJIT_UNLIKELY(mem & OFFS_REG_MASK)) {
        memw &= 0x3;
 
        if (SLJIT_UNLIKELY(memw != 0)) {
            FAIL_IF(push_inst(compiler, SLLI | RD(TMP_REG1) | RS1(OFFS_REG(mem)) | IMM_I(memw)));
            FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG1) | RS1(TMP_REG1) | RS2(mem & REG_MASK)));
        } else
            FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG1) | RS1(mem & REG_MASK) | RS2(OFFS_REG(mem))));
 
        mem = TMP_REG1;
        memw = 0;
    } else if (memw > SIMM_MAX - SSIZE_OF(sw) || memw < SIMM_MIN) {
        if (((memw + 0x800) & 0xfff) <= 0xfff - SSIZE_OF(sw)) {
            FAIL_IF(load_immediate(compiler, TMP_REG1, TO_ARGW_HI(memw), TMP_REG3));
            memw &= 0xfff;
        } else {
            FAIL_IF(load_immediate(compiler, TMP_REG1, memw, TMP_REG3));
            memw = 0;
        }
 
        if (mem & REG_MASK)
            FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG1) | RS1(TMP_REG1) | RS2(mem & REG_MASK)));
 
        mem = TMP_REG1;
    } else {
        mem &= REG_MASK;
        memw &= 0xfff;
    }
 
    SLJIT_ASSERT((memw >= 0 && memw <= SIMM_MAX - SSIZE_OF(sw)) || (memw > SIMM_MAX && memw <= 0xfff));
 
    if (!(type & SLJIT_MEM_STORE) && mem == REG_PAIR_FIRST(reg)) {
        FAIL_IF(push_mem_inst(compiler, WORD_DATA | LOAD_DATA, REG_PAIR_SECOND(reg), mem, (memw + SSIZE_OF(sw)) & 0xfff));
        return push_mem_inst(compiler, WORD_DATA | LOAD_DATA, REG_PAIR_FIRST(reg), mem, memw);
    }
 
    flags = WORD_DATA | (!(type & SLJIT_MEM_STORE) ? LOAD_DATA : 0);
 
    FAIL_IF(push_mem_inst(compiler, flags, REG_PAIR_FIRST(reg), mem, memw));
    return push_mem_inst(compiler, flags, REG_PAIR_SECOND(reg), mem, (memw + SSIZE_OF(sw)) & 0xfff);
}
 
#undef TO_ARGW_HI
 
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_REG2;
    PTR_FAIL_IF(emit_const(compiler, dst_r, init_value, ADDI | RD(dst_r)));
 
    if (dst & SLJIT_MEM)
        PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
 
    return const_;
}
 
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_mov_addr(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
{
    struct sljit_jump *jump;
    sljit_s32 dst_r;
 
    CHECK_ERROR_PTR();
    CHECK_PTR(check_sljit_emit_mov_addr(compiler, dst, dstw));
    ADJUST_LOCAL_OFFSET(dst, dstw);
 
    jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
    PTR_FAIL_IF(!jump);
    set_mov_addr(jump, compiler, 0);
 
    dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
    PTR_FAIL_IF(push_inst(compiler, (sljit_ins)dst_r));
#if (defined SLJIT_CONFIG_RISCV_32 && SLJIT_CONFIG_RISCV_32)
    compiler->size += 1;
#else /* !SLJIT_CONFIG_RISCV_32 */
    compiler->size += 5;
#endif /* SLJIT_CONFIG_RISCV_32 */
 
    if (dst & SLJIT_MEM)
        PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
 
    return jump;
}
 
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);
}