Author: vsapsai Date: Mon May 13 15:11:10 2019 New Revision: 360625 URL: http://llvm.org/viewvc/llvm-project?rev=360625&view=rev Log: Make language option `GNUAsm` discoverable with `__has_extension` macro.
This can be used for better support of `-fno-gnu-inline-asm` builds. rdar://problem/49540880 Reviewers: aaron.ballman, rsmith Reviewed By: aaron.ballman Subscribers: eraman, jkorous, dexonsmith, craig.topper, cfe-commits Differential Revision: https://reviews.llvm.org/D61619 Modified: cfe/trunk/include/clang/Basic/Features.def cfe/trunk/test/Parser/asm.c cfe/trunk/test/Parser/no-gnu-inline-asm.c Modified: cfe/trunk/include/clang/Basic/Features.def URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Features.def?rev=360625&r1=360624&r2=360625&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/Features.def (original) +++ cfe/trunk/include/clang/Basic/Features.def Mon May 13 15:11:10 2019 @@ -248,6 +248,7 @@ EXTENSION(cxx_variable_templates, LangOp EXTENSION(overloadable_unmarked, true) EXTENSION(pragma_clang_attribute_namespaces, true) EXTENSION(pragma_clang_attribute_external_declaration, true) +EXTENSION(gnu_asm, LangOpts.GNUAsm) #undef EXTENSION #undef FEATURE Modified: cfe/trunk/test/Parser/asm.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Parser/asm.c?rev=360625&r1=360624&r2=360625&view=diff ============================================================================== --- cfe/trunk/test/Parser/asm.c (original) +++ cfe/trunk/test/Parser/asm.c Mon May 13 15:11:10 2019 @@ -1,5 +1,9 @@ // RUN: %clang_cc1 -fsyntax-only -verify %s +#if !__has_extension(gnu_asm) +#error Extension 'gnu_asm' should be available by default +#endif + void f1() { // PR7673: Some versions of GCC support an empty clobbers section. asm ("ret" : : :); Modified: cfe/trunk/test/Parser/no-gnu-inline-asm.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Parser/no-gnu-inline-asm.c?rev=360625&r1=360624&r2=360625&view=diff ============================================================================== --- cfe/trunk/test/Parser/no-gnu-inline-asm.c (original) +++ cfe/trunk/test/Parser/no-gnu-inline-asm.c Mon May 13 15:11:10 2019 @@ -1,5 +1,9 @@ // RUN: %clang_cc1 %s -triple i686-apple-darwin -verify -fsyntax-only -fno-gnu-inline-asm +#if __has_extension(gnu_asm) +#error Expected extension 'gnu_asm' to be disabled +#endif + asm ("INST r1, 0"); // expected-error {{GNU-style inline assembly is disabled}} void foo() __asm("__foo_func"); // AsmLabel is OK _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits