Change the metadata for heapallocsite calls when the type is cast.

llvm-svn: 359823
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index ed58255..b837fa4 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -4370,7 +4370,6 @@
   }
 
   // Add metadata for calls to MSAllocator functions
-  // FIXME: Get the type that the return value is cast to.
   if (getDebugInfo() && TargetDecl &&
       TargetDecl->hasAttr<MSAllocatorAttr>())
     getDebugInfo()->addHeapAllocSiteMetadata(CI, RetTy, Loc);
diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp
index 83e9349..777e1dc 100644
--- a/clang/lib/CodeGen/CGExprScalar.cpp
+++ b/clang/lib/CodeGen/CGExprScalar.cpp
@@ -2063,6 +2063,12 @@
       }
     }
 
+    // Update heapallocsite metadata when there is an explicit cast.
+    if (llvm::CallInst *CI = dyn_cast<llvm::CallInst>(Src))
+      if (CI->getMetadata("heapallocsite") && isa<ExplicitCastExpr>(CE))
+          CGF.getDebugInfo()->
+              addHeapAllocSiteMetadata(CI, CE->getType(), CE->getExprLoc());
+
     return Builder.CreateBitCast(Src, DstTy);
   }
   case CK_AddressSpaceConversion: {