Author: arphaman Date: Mon Nov 21 05:05:15 2016 New Revision: 287529 URL: http://llvm.org/viewvc/llvm-project?rev=287529&view=rev Log: [Frontend] Add a predefined macro that describes the Objective-C bool type
This commit adds a new predefined macro named __OBJC_BOOL_IS_BOOL that describes the Objective-C boolean type: its value is zero if the Objective-C boolean uses the signed character type, otherwise its value is one as the Objective-C boolean uses the builtin boolean type. rdar://21170440 Differential Revision: https://reviews.llvm.org/D26234 Added: cfe/trunk/test/Frontend/objc-bool-is-bool.m Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/InitPreprocessor.cpp?rev=287529&r1=287528&r2=287529&view=diff ============================================================================== --- cfe/trunk/lib/Frontend/InitPreprocessor.cpp (original) +++ cfe/trunk/lib/Frontend/InitPreprocessor.cpp Mon Nov 21 05:05:15 2016 @@ -591,6 +591,9 @@ static void InitializePredefinedMacros(c Builder.defineMacro("OBJC_ZEROCOST_EXCEPTIONS"); } + Builder.defineMacro("__OBJC_BOOL_IS_BOOL", + Twine(TI.useSignedCharForObjCBool() ? "0" : "1")); + if (LangOpts.getGC() != LangOptions::NonGC) Builder.defineMacro("__OBJC_GC__"); Added: cfe/trunk/test/Frontend/objc-bool-is-bool.m URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Frontend/objc-bool-is-bool.m?rev=287529&view=auto ============================================================================== --- cfe/trunk/test/Frontend/objc-bool-is-bool.m (added) +++ cfe/trunk/test/Frontend/objc-bool-is-bool.m Mon Nov 21 05:05:15 2016 @@ -0,0 +1,13 @@ +// RUN: %clang_cc1 -fsyntax-only -E -dM -triple=armv7k-apple-watchos %s | FileCheck --check-prefix=BOOL %s +// RUN: %clang_cc1 -fsyntax-only -E -dM -triple=x86_64-apple-darwin16 %s | FileCheck --check-prefix=CHAR %s +// RUN: %clang_cc1 -x c -fsyntax-only -E -dM -triple=x86_64-apple-darwin16 %s | FileCheck --check-prefix=NONE %s + +// rdar://21170440 + +// BOOL: #define __OBJC_BOOL_IS_BOOL 1 +// BOOL-NOT: #define __OBJC_BOOL_IS_BOOL 0 + +// CHAR: #define __OBJC_BOOL_IS_BOOL 0 +// CHAR-NOT: #define __OBJC_BOOL_IS_BOOL 1 + +// NONE-NOT: __OBJC_BOOL_IS_BOOL _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
