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Use MOVZX on x86-64 when loading a word sized function parameter. Fixes issues when built with LLVM and -O3.

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This commit is contained in:
SarahW 2018-12-19 22:23:59 +00:00
commit 93a5925f02
1 changed files with 2 additions and 2 deletions
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4
src/codegen_backend_x86-64_uops.c
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@ -771,9 +771,9 @@ static int codegen_LOAD_FUNC_ARG0(codeblock_t *block, uop_t *uop)
if (REG_IS_W(src_size)) if (REG_IS_W(src_size))
{ {
#if WIN64 #if WIN64
host_x86_MOV16_REG_REG(block, REG_ECX, src_reg); host_x86_MOVZX_REG_32_16(block, REG_ECX, src_reg);
#else #else
host_x86_MOV16_REG_REG(block, REG_EDI, src_reg); host_x86_MOVZX_REG_32_16(block, REG_EDI, src_reg);
#endif #endif
} }
else else