Add option to commuteInstruction() which forces it to create a new (commuted) instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52308 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 4384426..bbe5bd3 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -1146,7 +1146,8 @@
/// commuteInstruction - We have a few instructions that must be hacked on to
/// commute them.
///
-MachineInstr *X86InstrInfo::commuteInstruction(MachineInstr *MI) const {
+MachineInstr *
+X86InstrInfo::commuteInstruction(MachineInstr *MI, bool NewMI) const {
switch (MI->getOpcode()) {
case X86::SHRD16rri8: // A = SHRD16rri8 B, C, I -> A = SHLD16rri8 C, B, (16-I)
case X86::SHLD16rri8: // A = SHLD16rri8 B, C, I -> A = SHRD16rri8 C, B, (16-I)
@@ -1276,7 +1277,7 @@
// Fallthrough intended.
}
default:
- return TargetInstrInfoImpl::commuteInstruction(MI);
+ return TargetInstrInfoImpl::commuteInstruction(MI, NewMI);
}
}