Devirtualize calls on temporaries. A().f() for example.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83882 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/CodeGen/CGCXX.cpp b/lib/CodeGen/CGCXX.cpp
index 0744b79d45..ed7ee4298c 100644
--- a/lib/CodeGen/CGCXX.cpp
+++ b/lib/CodeGen/CGCXX.cpp
@@ -206,8 +206,14 @@ static bool canDevirtualizeMemberFunctionCalls(const Expr *Base) {
       // This is a record decl. We know the type and can devirtualize it.
       return VD->getType()->isRecordType();
     }
+    
+    return false;
   }
   
+  // We can always devirtualize calls on temporaries.
+  if (isa<CXXTemporaryObjectExpr>(Base))
+    return true;
+  
   // We can't devirtualize the call.
   return false;
 }