diff options
| -rw-r--r-- | include/llvm/PassSupport.h | 91 |
1 files changed, 21 insertions, 70 deletions
diff --git a/include/llvm/PassSupport.h b/include/llvm/PassSupport.h index 454217970c..c79b41e587 100644 --- a/include/llvm/PassSupport.h +++ b/include/llvm/PassSupport.h @@ -129,6 +129,22 @@ private: PassInfo(const PassInfo &); // do not implement }; +#define CALL_ONCE_INITIALIZATION(function) \ + static volatile sys::cas_flag initialized = 0; \ + sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ + if (old_val == 0) { \ + function(Registry); \ + sys::MemoryFence(); \ + initialized = 2; \ + } else { \ + sys::cas_flag tmp = initialized; \ + sys::MemoryFence(); \ + while (tmp != 2) { \ + tmp = initialized; \ + sys::MemoryFence(); \ + } \ + } \ + #define INITIALIZE_PASS(passName, arg, name, cfg, analysis) \ static void* initialize##passName##PassOnce(PassRegistry &Registry) { \ PassInfo *PI = new PassInfo(name, arg, & passName ::ID, \ @@ -137,20 +153,7 @@ private: return PI; \ } \ void llvm::initialize##passName##Pass(PassRegistry &Registry) { \ - static volatile sys::cas_flag initialized = 0; \ - sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ - if (old_val == 0) { \ - initialize##passName##PassOnce(Registry); \ - sys::MemoryFence(); \ - initialized = 2; \ - } else { \ - sys::cas_flag tmp = initialized; \ - sys::MemoryFence(); \ - while (tmp != 2) { \ - tmp = initialized; \ - sys::MemoryFence(); \ - } \ - } \ + CALL_ONCE_INITIALIZATION(initialize##passName##PassOnce) \ } #define INITIALIZE_PASS_BEGIN(passName, arg, name, cfg, analysis) \ @@ -168,20 +171,7 @@ private: return PI; \ } \ void llvm::initialize##passName##Pass(PassRegistry &Registry) { \ - static volatile sys::cas_flag initialized = 0; \ - sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ - if (old_val == 0) { \ - initialize##passName##PassOnce(Registry); \ - sys::MemoryFence(); \ - initialized = 2; \ - } else { \ - sys::cas_flag tmp = initialized; \ - sys::MemoryFence(); \ - while (tmp != 2) { \ - tmp = initialized; \ - sys::MemoryFence(); \ - } \ - } \ + CALL_ONCE_INITIALIZATION(initialize##passName##PassOnce) \ } template<typename PassName> @@ -266,20 +256,7 @@ struct RegisterAnalysisGroup : public RegisterAGBase { return AI; \ } \ void llvm::initialize##agName##AnalysisGroup(PassRegistry &Registry) { \ - static volatile sys::cas_flag initialized = 0; \ - sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ - if (old_val == 0) { \ - initialize##agName##AnalysisGroupOnce(Registry); \ - sys::MemoryFence(); \ - initialized = 2; \ - } else { \ - sys::cas_flag tmp = initialized; \ - sys::MemoryFence(); \ - while (tmp != 2) { \ - tmp = initialized; \ - sys::MemoryFence(); \ - } \ - } \ + CALL_ONCE_INITIALIZATION(initialize##agName##AnalysisGroupOnce) \ } @@ -295,20 +272,7 @@ struct RegisterAnalysisGroup : public RegisterAGBase { return AI; \ } \ void llvm::initialize##passName##Pass(PassRegistry &Registry) { \ - static volatile sys::cas_flag initialized = 0; \ - sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ - if (old_val == 0) { \ - initialize##passName##PassOnce(Registry); \ - sys::MemoryFence(); \ - initialized = 2; \ - } else { \ - sys::cas_flag tmp = initialized; \ - sys::MemoryFence(); \ - while (tmp != 2) { \ - tmp = initialized; \ - sys::MemoryFence(); \ - } \ - } \ + CALL_ONCE_INITIALIZATION(initialize##passName##PassOnce) \ } @@ -326,20 +290,7 @@ struct RegisterAnalysisGroup : public RegisterAGBase { return AI; \ } \ void llvm::initialize##passName##Pass(PassRegistry &Registry) { \ - static volatile sys::cas_flag initialized = 0; \ - sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ - if (old_val == 0) { \ - initialize##passName##PassOnce(Registry); \ - sys::MemoryFence(); \ - initialized = 2; \ - } else { \ - sys::cas_flag tmp = initialized; \ - sys::MemoryFence(); \ - while (tmp != 2) { \ - tmp = initialized; \ - sys::MemoryFence(); \ - } \ - } \ + CALL_ONCE_INITIALIZATION(initialize##passName##PassOnce) \ } //===--------------------------------------------------------------------------- |