diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 228ec9f..11e07df 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -3390,17 +3390,10 @@ X86TargetLowering::LowerAsSplatVectorLoad(SDValue SrcOp, EVT VT, DebugLoc dl, MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo(); if (DAG.InferPtrAlignment(Ptr) < 16) { if (MFI->isFixedObjectIndex(FI)) { - // Can't change the alignment. Reference stack + offset explicitly - // if stack pointer is at least 16-byte aligned. - unsigned StackAlign = Subtarget->getStackAlignment(); - if (StackAlign < 16) - return SDValue(); - Offset = MFI->getObjectOffset(FI) + Offset; - SDValue StackPtr = DAG.getCopyFromReg(Chain, dl, X86StackPtr, - getPointerTy()); - Ptr = DAG.getNode(ISD::ADD, dl, getPointerTy(), StackPtr, - DAG.getConstant(Offset & ~15, getPointerTy())); - Offset %= 16; + // Can't change the alignment. FIXME: It's possible to compute + // the exact stack offset and reference FI + adjust offset instead. + // If someone *really* cares about this. That's the way to implement it. + return SDValue(); } else { MFI->setObjectAlignment(FI, 16); } @@ -7579,7 +7572,7 @@ bool X86TargetLowering::isTruncateFree(EVT VT1, EVT VT2) const { bool X86TargetLowering::isZExtFree(const Type *Ty1, const Type *Ty2) const { // x86-64 implicitly zero-extends 32-bit results in 64-bit registers. - return Ty1->isInteger(64) && Ty2->isInteger(64) && Subtarget->is64Bit(); + return Ty1->isInteger(32) && Ty2->isInteger(64) && Subtarget->is64Bit(); } bool X86TargetLowering::isZExtFree(EVT VT1, EVT VT2) const { |
