1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPC32InstrInfo.h b/llvm/lib/Target/PowerPC/PPC32InstrInfo.h
index 35bab982f0d..bbc0be4cd56 100644
--- a/llvm/lib/Target/PowerPC/PPC32InstrInfo.h
+++ b/llvm/lib/Target/PowerPC/PPC32InstrInfo.h
@@ -38,6 +38,10 @@ public:
                            unsigned& sourceReg,
                            unsigned& destReg) const;
 
+  // commuteInstruction - We can commute rlwimi instructions, but only if the
+  // rotate amt is zero.  We also have to munge the immediates a bit.
+  virtual MachineInstr *commuteInstruction(MachineInstr *MI) const;
+  
   static unsigned invertPPCBranchOpcode(unsigned Opcode) {
     switch (Opcode) {
     default: assert(0 && "Unknown PPC branch opcode!");