From: Hal Finkel <hfinkel@anl.gov>
Date: Fri, 2 Mar 2012 20:54:36 +0000 (+0000)
Subject: Fix an ABI problem with ptrdiff_t and intptr_t on PPC32
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=178a9b8b22cb77b4291bf076c0cd8d6561c7e711;p=clang

Fix an ABI problem with ptrdiff_t and intptr_t on PPC32

ptrdiff_t on PPC32 on Linux, etc. should be int not long.
This does not matter for C, but it does matter for C++ because of
name mangling.

The preprocessor test has been changed accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151935 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index ac8c355707..a7c4f225c3 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -865,6 +865,8 @@ public:
     case llvm::Triple::FreeBSD:
     case llvm::Triple::NetBSD:
       SizeType = UnsignedInt;
+      PtrDiffType = SignedInt;
+      IntPtrType = SignedInt;
       break;
     default:
       break;
diff --git a/test/Preprocessor/init.c b/test/Preprocessor/init.c
index aff8c62092..a43d1765a7 100644
--- a/test/Preprocessor/init.c
+++ b/test/Preprocessor/init.c
@@ -852,7 +852,7 @@
 // PPC-LINUX:#define __INTMAX_MAX__ 9223372036854775807LL
 // PPC-LINUX:#define __INTMAX_TYPE__ long long int
 // PPC-LINUX:#define __INTMAX_WIDTH__ 64
-// PPC-LINUX:#define __INTPTR_TYPE__ long int
+// PPC-LINUX:#define __INTPTR_TYPE__ int
 // PPC-LINUX:#define __INTPTR_WIDTH__ 32
 // PPC-LINUX:#define __INT_MAX__ 2147483647
 // PPC-LINUX:#define __LDBL_DENORM_MIN__ 4.94065645841246544176568792868221e-324L
@@ -875,7 +875,7 @@
 // PPC-LINUX:#define __NO_INLINE__ 1
 // PPC-LINUX:#define __POINTER_WIDTH__ 32
 // PPC-LINUX:#define __POWERPC__ 1
-// PPC-LINUX:#define __PTRDIFF_TYPE__ long int
+// PPC-LINUX:#define __PTRDIFF_TYPE__ int
 // PPC-LINUX:#define __PTRDIFF_WIDTH__ 32
 // PPC-LINUX:#define __REGISTER_PREFIX__
 // PPC-LINUX:#define __SCHAR_MAX__ 127