Make sure to copy back arguments that can be changed by FindAllocationOverload. This fixes placement new. (Sebastian, please review).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72673 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index a44dcf6f8b..65018daff7 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -508,6 +508,11 @@ bool Sema::FindAllocationFunctions(SourceLocation StartLoc, SourceRange Range,
       return true;
   }
 
+  // FindAllocationOverload can change the passed in arguments, so we need to
+  // copy them back.
+  if (NumPlaceArgs > 0)
+    std::copy(&AllocArgs[1], AllocArgs.end(), PlaceArgs);
+  
   // FIXME: This is leaked on error. But so much is currently in Sema that it's
   // easier to clean it in one go.
   AllocArgs[0]->Destroy(Context);