From: Anders Carlsson <andersca@mac.com>
Date: Tue, 20 Apr 2010 05:07:22 +0000 (+0000)
Subject: Assert that the path from the derived to the base class in CodeGenFunction::GetAddres... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2692d8284c77eee8ef3a93bf114cfec997a191a1;p=clang

Assert that the path from the derived to the base class in CodeGenFunction::GetAddressOfBaseClass is not ambiguous.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101869 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGClass.cpp b/lib/CodeGen/CGClass.cpp
index 42b0591f38..5e7cc4b514 100644
--- a/lib/CodeGen/CGClass.cpp
+++ b/lib/CodeGen/CGClass.cpp
@@ -120,14 +120,21 @@ CodeGenFunction::GetAddressOfBaseClass(llvm::Value *Value,
     return Builder.CreateBitCast(Value, BasePtrTy);
   }
 
+#ifndef NDEBUG
+  CXXBasePaths Paths(/*FindAmbiguities=*/true,
+                     /*RecordPaths=*/true, /*DetectVirtual=*/false);
+#else
   CXXBasePaths Paths(/*FindAmbiguities=*/false,
                      /*RecordPaths=*/true, /*DetectVirtual=*/false);
+#endif
   if (!const_cast<CXXRecordDecl *>(Class)->
         isDerivedFrom(const_cast<CXXRecordDecl *>(BaseClass), Paths)) {
     assert(false && "Class must be derived from the passed in base class!");
     return 0;
   }
 
+  assert(!Paths.isAmbiguous(BTy) && "Path is ambiguous");
+
   unsigned Start = 0;
   llvm::Value *VirtualOffset = 0;