commit c831d8b977a09bf2907d03128b48b5c914a2fafd
author Richard Smith <richard-llvm@metafoo.co.uk> Fri Aug 24 23:43:39 2012 +0000
committer Richard Smith <richard-llvm@metafoo.co.uk> Fri Aug 24 23:43:39 2012 +0000
tree 78bf3efb86abbf7d084f1768be4605b190fbf91d
parent 0d3a3fd7211a1b368d1f8c0d7ca1cfd40d31a0ea

Fix integer unsigned behavior in clang due to signed left shift overflow.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162626 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGRTTI.cpp

diff --git a/lib/CodeGen/CGRTTI.cpp b/lib/CodeGen/CGRTTI.cpp
index eca9f5b..e46423b 100644
--- a/lib/CodeGen/CGRTTI.cpp
+++ b/lib/CodeGen/CGRTTI.cpp
@@ -886,7 +886,7 @@
       Offset = Layout.getBaseClassOffset(BaseDecl);
     };
     
-    OffsetFlags = Offset.getQuantity() << 8;
+    OffsetFlags = uint64_t(Offset.getQuantity()) << 8;
     
     // The low-order byte of __offset_flags contains flags, as given by the 
     // masks from the enumeration __offset_flags_masks.