diff options
Diffstat (limited to 'llvm/lib/Target/X86')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 15 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.h | 4 |
2 files changed, 9 insertions, 10 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index dc76d66b3a5..61c574e304d 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -2374,15 +2374,14 @@ bool X86TargetLowering::isUsedByReturnOnly(SDNode *N, SDValue &Chain) const { return true; } -EVT -X86TargetLowering::getTypeForExtArgOrReturn(LLVMContext &Context, EVT VT, - ISD::NodeType ExtendKind) const { - MVT ReturnMVT; - // TODO: Is this also valid on 32-bit? - if (Subtarget.is64Bit() && VT == MVT::i1 && ExtendKind == ISD::ZERO_EXTEND) +EVT X86TargetLowering::getTypeForExtReturn(LLVMContext &Context, EVT VT, + ISD::NodeType ExtendKind) const { + MVT ReturnMVT = MVT::i32; + + if (VT == MVT::i1 || VT == MVT::i8 || VT == MVT::i16) { + // The ABI does not require i1, i8 or i16 to be extended. ReturnMVT = MVT::i8; - else - ReturnMVT = MVT::i32; + } EVT MinVT = getRegisterType(Context, ReturnMVT); return VT.bitsLT(MinVT) ? MinVT : VT; diff --git a/llvm/lib/Target/X86/X86ISelLowering.h b/llvm/lib/Target/X86/X86ISelLowering.h index ee6e87314fa..c218a40cabb 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.h +++ b/llvm/lib/Target/X86/X86ISelLowering.h @@ -1092,8 +1092,8 @@ namespace llvm { bool mayBeEmittedAsTailCall(CallInst *CI) const override; - EVT getTypeForExtArgOrReturn(LLVMContext &Context, EVT VT, - ISD::NodeType ExtendKind) const override; + EVT getTypeForExtReturn(LLVMContext &Context, EVT VT, + ISD::NodeType ExtendKind) const override; bool CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF, bool isVarArg, |
