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| author | Owen Anderson <resistor@mac.com> | 2009-05-19 22:18:56 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2009-05-19 22:18:56 +0000 |
| commit | a86037084d8c2338c305533807b3213cfdc47a3e (patch) | |
| tree | cedee6e1057dcd871c41a1e150497f264ef4bffa /include/llvm/System | |
| parent | 6aa219a18c59a9bc0b1eeb6eece09cfabaaefabe (diff) | |
| download | external_llvm-a86037084d8c2338c305533807b3213cfdc47a3e.zip external_llvm-a86037084d8c2338c305533807b3213cfdc47a3e.tar.gz external_llvm-a86037084d8c2338c305533807b3213cfdc47a3e.tar.bz2 | |
Split the ENABLE_THREADS #define in two. Now ENABLE_THREADS indicates the ability to run multiple threads at once in the JIT, and requires only
mutex support. LLVM_MULTITHREADED indicates (or will indicate) the ability to run LLVM itself across multiple threads, and requires atomics support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72140 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/System')
| -rw-r--r-- | include/llvm/System/Atomic.h | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/include/llvm/System/Atomic.h b/include/llvm/System/Atomic.h index 5830b37..38388a4 100644 --- a/include/llvm/System/Atomic.h +++ b/include/llvm/System/Atomic.h @@ -23,14 +23,8 @@ namespace llvm { namespace sys { inline void MemoryFence() { -#if !defined(ENABLE_THREADS) || ENABLE_THREADS == 0 -# if defined(__GNUC__) - __asm__ __volatile__("" : : : "memory"); -# elif defined(_MSC_VER) - __asm { }; -# else -# error No memory fence implementation for your platform! -# endif +#if LLVM_MULTITHREADED==0 + return; #else # if defined(__GNUC__) __sync_synchronize(); @@ -42,7 +36,7 @@ namespace llvm { #endif } -#if !defined(ENABLE_THREADS) || ENABLE_THREADS == 0 +#if LLVM_MULTITHREADED==0 typedef unsigned long cas_flag; template<typename T> inline T CompareAndSwap(volatile T* dest, |