diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 863379ec5af..53a095f7180 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -1362,18 +1362,14 @@ X86TargetLowering::getOptimalMemOpType(uint64_t Size, bool IsZeroVal, bool MemcpyStrSrc, MachineFunction &MF) 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 - // cases like PR2962. This should be removed when PR2962 is fixed. const Function *F = MF.getFunction(); if (IsZeroVal && !F->getFnAttributes().hasAttribute(Attributes::NoImplicitFloat)) { if (Size >= 16 && (Subtarget->isUnalignedMemAccessFast() || ((DstAlign == 0 || DstAlign >= 16) && - (SrcAlign == 0 || SrcAlign >= 16))) && - Subtarget->getStackAlignment() >= 16) { - if (Subtarget->getStackAlignment() >= 32) { + (SrcAlign == 0 || SrcAlign >= 16)))) { + if (Size >= 32) { if (Subtarget->hasAVX2()) return MVT::v8i32; if (Subtarget->hasAVX()) @@ -1385,7 +1381,6 @@ X86TargetLowering::getOptimalMemOpType(uint64_t Size, return MVT::v4f32; } else if (!MemcpyStrSrc && Size >= 8 && !Subtarget->is64Bit() && - Subtarget->getStackAlignment() >= 8 && Subtarget->hasSSE2()) { // Do not use f64 to lower memcpy if source is string constant. It's // better to use i32 to avoid the loads. |
