diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index bd268eca8f5..5d6e571db12 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -1076,6 +1076,7 @@ unsigned X86TargetLowering::getByValTypeAlignment(const Type *Ty) const { EVT X86TargetLowering::getOptimalMemOpType(uint64_t Size, unsigned DstAlign, unsigned SrcAlign, + bool SafeToUseFP, SelectionDAG &DAG) const { // FIXME: This turns off use of xmm stores for memset/memcpy on targets like // linux. This is because the stack realignment code can't handle certain @@ -1089,9 +1090,10 @@ X86TargetLowering::getOptimalMemOpType(uint64_t Size, Subtarget->getStackAlignment() >= 16) { if (Subtarget->hasSSE2()) return MVT::v4i32; - if (Subtarget->hasSSE1()) + if (SafeToUseFP && Subtarget->hasSSE1()) return MVT::v4f32; - } else if (Size >= 8 && + } else if (SafeToUseFP && + Size >= 8 && Subtarget->getStackAlignment() >= 8 && Subtarget->hasSSE2()) return MVT::f64; |
