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Fix 32-bit negation

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This commit is contained in:
Dmitry Stogov 2023-01-20 16:00:23 +03:00
parent 32ad3d1052
commit afc948def6
1 changed files with 8 additions and 2 deletions
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10
ir_x86.dasc
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@ -7567,8 +7567,14 @@ void *ir_emit_code(ir_ctx *ctx, size_t *size_ptr)
ir_reg op1_reg = ctx->regs[i][1];
int32_t offset = ctx->ir_base[insn->op2].val.i32;
if (insn->op == IR_SUB) {
offset = -offset;
if (insn->op == IR_ADD) {
offset = ctx->ir_base[insn->op2].val.i32;
} else {
IR_ASSERT(insn->op == IR_SUB);
int64_t long_offset = ctx->ir_base[insn->op2].val.i64;
long_offset = -long_offset;
IR_ASSERT(IR_IS_SIGNED_32BIT(long_offset));
offset = long_offset;
}
if (op1_reg & IR_REG_SPILL_LOAD) {
op1_reg &= ~IR_REG_SPILL_LOAD;