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make the rewriter add a #ifndef around the #define of __attribute__. 

Without it, there is no reason for a compiler that supports it to
emit the dead static globals that the rewriter labels attribute(used).

llvm-svn: 101149
This commit is contained in:
Chris Lattner 2010-04-13 17:33:56 +00:00
parent 8a2dae57e2
commit 8d269dc329
2 changed files with 3 additions and 1 deletions
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2
clang/lib/Frontend/RewriteObjC.cpp
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@ -640,7 +640,9 @@ void RewriteObjC::Initialize(ASTContext &context) {
if (LangOpts.Microsoft) {
Preamble += "#undef __OBJC_RW_DLLIMPORT\n";
Preamble += "#undef __OBJC_RW_STATICIMPORT\n";
Preamble += "#ifndef KEEP_ATTRIBUTES\n"; // We use this for clang tests.
Preamble += "#define __attribute__(X)\n";
Preamble += "#endif\n";
Preamble += "#define __weak\n";
}
else {

2
clang/test/Rewriter/rewrite-super-message.mm
View File

@ -1,5 +1,5 @@
// RUN: %clang_cc1 -x objective-c++ -Wno-return-type -fblocks -fms-extensions -rewrite-objc %s -o %t-rw.cpp
// RUN: %clang_cc1 -fsyntax-only -Wno-address-of-temporary -D"id=struct objc_object *" -D"Class=struct objc_class *" -D"SEL=void*" -D"__declspec(X)=" -emit-llvm -o - %t-rw.cpp | FileCheck %t-rw.cpp
// RUN: %clang_cc1 -fsyntax-only -Wno-address-of-temporary -DKEEP_ATTRIBUTES -D"id=struct objc_object *" -D"Class=struct objc_class *" -D"SEL=void*" -D"__declspec(X)=" -emit-llvm -o - %t-rw.cpp | FileCheck %t-rw.cpp
// radar 7738453
void *sel_registerName(const char *);