[WebAssembly] Implement unaligned loads and stores.
Differential Revision: http://reviews.llvm.org/D16534
llvm-svn: 258779
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyPeephole.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyPeephole.cpp
index 8653265..76ef5c0 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyPeephole.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyPeephole.cpp
@@ -70,8 +70,10 @@
MachineOperand &MO = MI.getOperand(0);
unsigned OldReg = MO.getReg();
// TODO: Handle SP/physregs
- if (OldReg == MI.getOperand(3).getReg() &&
- TargetRegisterInfo::isVirtualRegister(MI.getOperand(3).getReg())) {
+ if (OldReg ==
+ MI.getOperand(WebAssembly::StoreValueOperandNo).getReg() &&
+ TargetRegisterInfo::isVirtualRegister(
+ MI.getOperand(WebAssembly::StoreValueOperandNo).getReg())) {
Changed = true;
unsigned NewReg = MRI.createVirtualRegister(MRI.getRegClass(OldReg));
MO.setReg(NewReg);