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| author | rdivacky <rdivacky@FreeBSD.org> | 2009-12-15 18:09:07 +0000 |
|---|---|---|
| committer | rdivacky <rdivacky@FreeBSD.org> | 2009-12-15 18:09:07 +0000 |
| commit | 40a6fcdb85efd93fe0e36c9552cfb0b18b5eacd6 (patch) | |
| tree | 076117cdf3579003f07cad4cdf0593347ce58150 /cmake/modules | |
| parent | e7908924d847e63b02bc82bfaa1709ab9c774dcd (diff) | |
| download | FreeBSD-src-40a6fcdb85efd93fe0e36c9552cfb0b18b5eacd6.zip FreeBSD-src-40a6fcdb85efd93fe0e36c9552cfb0b18b5eacd6.tar.gz | |
Update LLVM to 91430.
Diffstat (limited to 'cmake/modules')
| -rw-r--r-- | cmake/modules/CheckAtomic.cmake | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/cmake/modules/CheckAtomic.cmake b/cmake/modules/CheckAtomic.cmake index 27bbaba..f40ff4d 100644 --- a/cmake/modules/CheckAtomic.cmake +++ b/cmake/modules/CheckAtomic.cmake @@ -1,14 +1,25 @@ # atomic builtins are required for threading support. INCLUDE(CheckCXXSourceCompiles) - + CHECK_CXX_SOURCE_COMPILES(" +#ifdef _MSC_VER +#include <windows.h> +#endif int main() { +#ifdef _MSC_VER + volatile LONG val = 1; + MemoryBarrier(); + InterlockedCompareExchange(&val, 0, 1); + InterlockedIncrement(&val); + InterlockedDecrement(&val); +#else volatile unsigned long val = 1; __sync_synchronize(); __sync_val_compare_and_swap(&val, 1, 0); __sync_add_and_fetch(&val, 1); __sync_sub_and_fetch(&val, 1); +#endif return 0; } " LLVM_MULTITHREADED) |
