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Only evaluate __has_feature(c_thread_local) and __has_feature(cxx_thread_local) true when the target supports thread-local storage. 

llvm-svn: 180909
This commit is contained in:
Douglas Gregor 2013-05-02 05:28:32 +00:00
parent bca31a3d64
commit a7130bfed6
2 changed files with 8 additions and 4 deletions
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6
clang/lib/Lex/PPMacroExpansion.cpp
View File

@ -751,7 +751,8 @@ static bool HasFeature(const Preprocessor &PP, const IdentifierInfo *II) {
.Case("c_atomic", LangOpts.C11)
.Case("c_generic_selections", LangOpts.C11)
.Case("c_static_assert", LangOpts.C11)
.Case("c_thread_local", LangOpts.C11)
.Case("c_thread_local",
LangOpts.C11 && PP.getTargetInfo().isTLSSupported())
// C++11 features
.Case("cxx_access_control_sfinae", LangOpts.CPlusPlus11)
.Case("cxx_alias_templates", LangOpts.CPlusPlus11)
@ -783,7 +784,8 @@ static bool HasFeature(const Preprocessor &PP, const IdentifierInfo *II) {
.Case("cxx_rvalue_references", LangOpts.CPlusPlus11)
.Case("cxx_strong_enums", LangOpts.CPlusPlus11)
.Case("cxx_static_assert", LangOpts.CPlusPlus11)
.Case("cxx_thread_local", LangOpts.CPlusPlus11)
.Case("cxx_thread_local",
LangOpts.CPlusPlus11 && PP.getTargetInfo().isTLSSupported())
.Case("cxx_trailing_return", LangOpts.CPlusPlus11)
.Case("cxx_unicode_literals", LangOpts.CPlusPlus11)
.Case("cxx_unrestricted_unions", LangOpts.CPlusPlus11)

6
clang/test/Lexer/has_feature_cxx0x.cpp
View File

@ -1,5 +1,6 @@
// RUN: %clang_cc1 -E -std=c++11 %s -o - | FileCheck --check-prefix=CHECK-0X %s
// RUN: %clang_cc1 -E %s -o - | FileCheck --check-prefix=CHECK-NO-0X %s
// RUN: %clang_cc1 -E -triple x86_64-linux-gnu -std=c++11 %s -o - | FileCheck --check-prefix=CHECK-0X %s
// RUN: %clang_cc1 -E -triple armv7-apple-darwin -std=c++11 %s -o - | FileCheck --check-prefix=CHECK-NO-TLS %s
// RUN: %clang_cc1 -E -triple x86_64-linux-gnu %s -o - | FileCheck --check-prefix=CHECK-NO-0X %s
#if __has_feature(cxx_atomic)
int has_atomic();
@ -290,3 +291,4 @@ int no_thread_local();
// CHECK-0X: has_thread_local
// CHECK-NO-0X: no_thread_local
// CHECK-NO-TLS: no_thread_local