1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp
index d3df7d8bc7d..b836b940c93 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.cpp
+++ b/llvm/lib/Target/X86/X86InstrInfo.cpp
@@ -6852,6 +6852,16 @@ void X86InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
   llvm_unreachable("Cannot emit physreg copy instruction");
 }
 
+bool X86InstrInfo::isCopyInstr(const MachineInstr &MI, MachineOperand &Src,
+                               MachineOperand &Dest) const {
+  if (MI.isMoveReg()) {
+    Dest = MI.getOperand(0);
+    Src = MI.getOperand(1);
+    return true;
+  }
+  return false;
+}
+
 static unsigned getLoadStoreRegOpcode(unsigned Reg,
                                       const TargetRegisterClass *RC,
                                       bool isStackAligned,