diff options
| author | Michael J. Spencer <bigcheesegs@gmail.com> | 2013-04-04 23:53:43 +0000 |
|---|---|---|
| committer | Michael J. Spencer <bigcheesegs@gmail.com> | 2013-04-04 23:53:43 +0000 |
| commit | a0d5eb3a277a2e09bf1c51282a6b5d1bbcc3525c (patch) | |
| tree | bef40aecfd20939b1566564414d951c444b148c9 | |
| parent | d953d66ee97f89d5d72de15f6e45cb104324b301 (diff) | |
| download | bcm5719-llvm-a0d5eb3a277a2e09bf1c51282a6b5d1bbcc3525c.tar.gz bcm5719-llvm-a0d5eb3a277a2e09bf1c51282a6b5d1bbcc3525c.zip | |
Add support for __GCC_HAVE_SYNC_COMPARE_AND_SWAP_{1,2,4,8} on x86.
This fixes std::thread with libstdc++.
llvm-svn: 178816
| -rw-r--r-- | clang/lib/Basic/Targets.cpp | 8 | ||||
| -rw-r--r-- | clang/test/Preprocessor/predefined-macros.c | 18 |
2 files changed, 26 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp index c7da36e8f7b..3eda9d8c184 100644 --- a/clang/lib/Basic/Targets.cpp +++ b/clang/lib/Basic/Targets.cpp @@ -2730,6 +2730,14 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts, case NoMMX3DNow: break; } + + if (CPU >= CK_i486) { + Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1"); + Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2"); + Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4"); + } + if (CPU >= CK_i586) + Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8"); } bool X86TargetInfo::hasFeature(StringRef Feature) const { diff --git a/clang/test/Preprocessor/predefined-macros.c b/clang/test/Preprocessor/predefined-macros.c index 2c193018b5c..94671f3335c 100644 --- a/clang/test/Preprocessor/predefined-macros.c +++ b/clang/test/Preprocessor/predefined-macros.c @@ -26,3 +26,21 @@ // RUN: %clang_cc1 %s -E -dM -o - \ // RUN: | FileCheck %s --check-prefix=CHECK-FINITE-MATH-FLAG-UNDEFINED // CHECK-FINITE-MATH-FLAG-UNDEFINED: #define __FINITE_MATH_ONLY__ 0 +// +// RUN: %clang_cc1 %s -E -dM -o - -triple i686 -target-cpu i386 \ +// RUN: | FileCheck %s --check-prefix=CHECK-SYNC_CAS_I386 +// CHECK-SYNC_CAS_I386-NOT: __GCC_HAVE_SYNC_COMPARE_AND_SWAP +// +// RUN: %clang_cc1 %s -E -dM -o - -triple i686 -target-cpu i486 \ +// RUN: | FileCheck %s --check-prefix=CHECK-SYNC_CAS_I486 +// CHECK-SYNC_CAS_I486: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 +// CHECK-SYNC_CAS_I486: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 +// CHECK-SYNC_CAS_I486: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 +// CHECK-SYNC_CAS_I486-NOT: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 +// +// RUN: %clang_cc1 %s -E -dM -o - -triple i686 -target-cpu i586 \ +// RUN: | FileCheck %s --check-prefix=CHECK-SYNC_CAS_I586 +// CHECK-SYNC_CAS_I586: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 +// CHECK-SYNC_CAS_I586: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 +// CHECK-SYNC_CAS_I586: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 +// CHECK-SYNC_CAS_I586: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 |
