1 files changed, 2 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/FunctionLoweringInfo.h b/include/llvm/CodeGen/FunctionLoweringInfo.h
index 2da00b7d61ab..7c658515de09 100644
--- a/include/llvm/CodeGen/FunctionLoweringInfo.h
+++ b/include/llvm/CodeGen/FunctionLoweringInfo.h
@@ -1,4 +1,4 @@
-//===- FunctionLoweringInfo.h - Lower functions from LLVM IR to CodeGen ---===//
+//===- FunctionLoweringInfo.h - Lower functions from LLVM IR ---*- C++ -*--===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -246,6 +246,7 @@ public:
       return 0;
     unsigned &R = ValueMap[V];
     assert(R == 0 && "Already initialized this value register!");
+    assert(VirtReg2Value.empty());
     return R = CreateRegs(V->getType());
   }