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Fix xmm operands in inline assembly

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This commit is contained in:
bjorn3 2024-01-03 11:08:32 +00:00
parent 45d8c121ba
commit 3b8794edf4
1 changed files with 28 additions and 4 deletions
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32
src/inline_asm.rs
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@ -506,10 +506,34 @@ impl<'tcx> InlineAssemblyGenerator<'_, 'tcx> {
if self.options.contains(InlineAsmOptions::ATT_SYNTAX) {
generated_asm.push('%');
}
self.registers[*operand_idx]
.unwrap()
.emit(&mut generated_asm, self.arch, *modifier)
.unwrap();
let reg = self.registers[*operand_idx].unwrap();
match self.arch {
InlineAsmArch::X86_64 => match reg {
InlineAsmReg::X86(reg)
if reg as u32 >= X86InlineAsmReg::xmm0 as u32
&& reg as u32 <= X86InlineAsmReg::xmm15 as u32 =>
{
// rustc emits x0 rather than xmm0
let class = match *modifier {
None | Some('x') => "xmm",
Some('y') => "ymm",
Some('z') => "zmm",
_ => unreachable!(),
};
write!(
generated_asm,
"{class}{}",
reg as u32 - X86InlineAsmReg::xmm0 as u32
)
.unwrap();
}
_ => reg
.emit(&mut generated_asm, InlineAsmArch::X86_64, *modifier)
.unwrap(),
},
_ => reg.emit(&mut generated_asm, self.arch, *modifier).unwrap(),
}
}
CInlineAsmOperand::Const { ref value } => {
generated_asm.push_str(value);