diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86CallingConv.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86CallingConv.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86CallingConv.cpp b/llvm/lib/Target/X86/X86CallingConv.cpp index 9be1147df3c..aee344a2676 100644 --- a/llvm/lib/Target/X86/X86CallingConv.cpp +++ b/llvm/lib/Target/X86/X86CallingConv.cpp @@ -162,7 +162,10 @@ static bool CC_X86_64_VectorCall(unsigned &ValNo, MVT &ValVT, MVT &LocVT, // created on top of the basic 32 bytes of win64. // It can happen if the fifth or sixth argument is vector type or HVA. // At that case for each argument a shadow stack of 8 bytes is allocated. - if (Reg == X86::XMM4 || Reg == X86::XMM5) + const TargetRegisterInfo *TRI = + State.getMachineFunction().getSubtarget().getRegisterInfo(); + if (TRI->regsOverlap(Reg, X86::XMM4) || + TRI->regsOverlap(Reg, X86::XMM5)) State.AllocateStack(8, 8); if (!ArgFlags.isHva()) { |
