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| author | David Majnemer <david.majnemer@gmail.com> | 2015-02-13 07:55:47 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2015-02-13 07:55:47 +0000 |
| commit | abc482effcabd373f5c96fb8f9dd493968a112dd (patch) | |
| tree | 2b1eb59e9ebf337925c18d2ad7537c0d60995c27 /clang/test/Driver/cl-options.c | |
| parent | 2a903b900d212dfaf5482408042a6f7b9e87c9a6 (diff) | |
| download | bcm5719-llvm-abc482effcabd373f5c96fb8f9dd493968a112dd.tar.gz bcm5719-llvm-abc482effcabd373f5c96fb8f9dd493968a112dd.zip | |
MS ABI: Implement /volatile:ms
The /volatile:ms semantics turn volatile loads and stores into atomic
acquire and release operations. This distinction is important because
volatile memory operations do not form a happens-before relationship
with non-atomic memory. This means that a volatile store is not
sufficient for implementing a mutex unlock routine.
Differential Revision: http://reviews.llvm.org/D7580
llvm-svn: 229082
Diffstat (limited to 'clang/test/Driver/cl-options.c')
| -rw-r--r-- | clang/test/Driver/cl-options.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c index bfd7f10b94b..ba717f0ff4c 100644 --- a/clang/test/Driver/cl-options.c +++ b/clang/test/Driver/cl-options.c @@ -123,6 +123,12 @@ // RUN: %clang_cl /vmg /vmm /vms -### -- %s 2>&1 | FileCheck -check-prefix=VMX %s // VMX: '/vms' not allowed with '/vmm' +// RUN: %clang_cl /volatile:iso -### -- %s 2>&1 | FileCheck -check-prefix=VOLATILE-ISO %s +// VOLATILE-ISO-NOT: "-fms-volatile" + +// RUN: %clang_cl /volatile:ms -### -- %s 2>&1 | FileCheck -check-prefix=VOLATILE-MS %s +// VOLATILE-MS: "-fms-volatile" + // RUN: %clang_cl /W0 -### -- %s 2>&1 | FileCheck -check-prefix=W0 %s // W0: -w |
