Add __PTRDIFF_WIDTH__ macro to eventually replace __PTRDIFF_TYPE__ in stdint.h.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89342 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/InitPreprocessor.cpp b/lib/Frontend/InitPreprocessor.cpp
index 03d3a00..c64b846 100644
--- a/lib/Frontend/InitPreprocessor.cpp
+++ b/lib/Frontend/InitPreprocessor.cpp
@@ -390,6 +390,7 @@
DefineTypeWidth("__INTMAX_WIDTH__", TI.getIntMaxType(), TI, Buf);
DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Buf);
+ DefineTypeWidth("__PTRDIFF_WIDTH__", TI.getPtrDiffType(0), TI, Buf);
DefineTypeWidth("__INTPTR_WIDTH__", TI.getIntPtrType(), TI, Buf);
DefineType("__SIZE_TYPE__", TI.getSizeType(), Buf);
DefineType("__WCHAR_TYPE__", TI.getWCharType(), Buf);