It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned.
llvm-svn: 46893
diff --git a/llvm/lib/Target/Alpha/AlphaInstrInfo.cpp b/llvm/lib/Target/Alpha/AlphaInstrInfo.cpp
index 53d7104..48e23f9 100644
--- a/llvm/lib/Target/Alpha/AlphaInstrInfo.cpp
+++ b/llvm/lib/Target/Alpha/AlphaInstrInfo.cpp
@@ -250,9 +250,10 @@
NewMIs.push_back(MIB);
}
-MachineInstr *AlphaInstrInfo::foldMemoryOperand(MachineInstr *MI,
- SmallVectorImpl<unsigned> &Ops,
- int FrameIndex) const {
+MachineInstr *AlphaInstrInfo::foldMemoryOperand(MachineFunction &MF,
+ MachineInstr *MI,
+ SmallVectorImpl<unsigned> &Ops,
+ int FrameIndex) const {
if (Ops.size() != 1) return NULL;
// Make sure this is a reg-reg copy.