1 files changed, 0 insertions, 23 deletions
diff --git a/llvm/lib/CodeGen/TargetRegisterInfo.cpp b/llvm/lib/CodeGen/TargetRegisterInfo.cpp
index 8b5cd3e..5db1c58 100644
--- a/llvm/lib/CodeGen/TargetRegisterInfo.cpp
+++ b/llvm/lib/CodeGen/TargetRegisterInfo.cpp
@@ -472,29 +472,6 @@ unsigned TargetRegisterInfo::getRegSizeInBits(unsigned Reg,
   return getRegSizeInBits(*RC);
 }
 
-unsigned
-TargetRegisterInfo::lookThruCopyLike(unsigned SrcReg,
-                                     const MachineRegisterInfo *MRI) const {
-  while (true) {
-    const MachineInstr *MI = MRI->getVRegDef(SrcReg);
-    if (!MI->isCopyLike())
-      return SrcReg;
-
-    unsigned CopySrcReg;
-    if (MI->isCopy())
-      CopySrcReg = MI->getOperand(1).getReg();
-    else {
-      assert(MI->isSubregToReg() && "Bad opcode for lookThruCopyLike");
-      CopySrcReg = MI->getOperand(2).getReg();
-    }
-
-    if (!isVirtualRegister(CopySrcReg))
-      return CopySrcReg;
-
-    SrcReg = CopySrcReg;
-  }
-}
-
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
 LLVM_DUMP_METHOD
 void TargetRegisterInfo::dumpReg(unsigned Reg, unsigned SubRegIndex,