================
@@ -58024,15 +58043,22 @@ X86TargetLowering::getRegForInlineAsmConstraint(const
TargetRegisterInfo *TRI,
case 'r': // GENERAL_REGS
case 'l': // INDEX_REGS
if (VT == MVT::i8 || VT == MVT::i1)
- return std::make_pair(0U, &X86::GR8_NOREX2RegClass);
+ return std::make_pair(0U, Subtarget.useInlineAsmGPR32()
+ ? &X86::GR8_NOREX2RegClass
+ : &X86::GR8RegClass);
if (VT == MVT::i16)
- return std::make_pair(0U, &X86::GR16_NOREX2RegClass);
+ return std::make_pair(0U, Subtarget.useInlineAsmGPR32()
+ ? &X86::GR16_NOREX2RegClass
+ : &X86::GR16RegClass);
if (VT == MVT::i32 || VT == MVT::f32 ||
(!VT.isVector() && !Subtarget.is64Bit()))
- return std::make_pair(0U, &X86::GR32_NOREX2RegClass);
+ return std::make_pair(0U, Subtarget.useInlineAsmGPR32()
----------------
FreddyLeaf wrote:
covered by getPreserverdRegister in RA.
https://github.com/llvm/llvm-project/pull/92338
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