diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/PassSupport.h | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/include/llvm/PassSupport.h b/include/llvm/PassSupport.h index e0e4e8a..a81af56 100644 --- a/include/llvm/PassSupport.h +++ b/include/llvm/PassSupport.h @@ -24,7 +24,7 @@ #include "Pass.h" #include "llvm/PassRegistry.h" #include "llvm/InitializePasses.h" -#include "llvm/Support/Compiler.h" +#include "llvm/System/Atomic.h" #include <vector> namespace llvm { @@ -137,10 +137,10 @@ private: return PI; \ } \ void llvm::initialize##passName##Pass(PassRegistry &Registry) { \ - ATTRIBUTE_USED \ - static void* initialized = initialize##passName##PassOnce(Registry); \ - } \ - static RegisterPass<passName> passName ## _info(arg, name, cfg, analysis); + static sys::cas_flag initialized = 0; \ + sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ + if (old_val == 0) initialize##passName##PassOnce(Registry); \ + } #define INITIALIZE_PASS_BEGIN(passName, arg, name, cfg, analysis) \ static void* initialize##passName##PassOnce(PassRegistry &Registry) { @@ -157,10 +157,10 @@ private: return PI; \ } \ void llvm::initialize##passName##Pass(PassRegistry &Registry) { \ - ATTRIBUTE_USED \ - static void* initialized = initialize##passName##PassOnce(Registry); \ - } \ - static RegisterPass<passName> passName ## _info(arg, name, cfg, analysis); + static sys::cas_flag initialized = 0; \ + sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ + if (old_val == 0) initialize##passName##PassOnce(Registry); \ + } template<typename PassName> Pass *callDefaultCtor() { return new PassName(); } @@ -244,10 +244,11 @@ struct RegisterAnalysisGroup : public RegisterAGBase { return AI; \ } \ void llvm::initialize##agName##AnalysisGroup(PassRegistry &Registry) { \ - ATTRIBUTE_USED static void* initialized = \ - initialize##agName##AnalysisGroupOnce(Registry); \ - } \ - static RegisterAnalysisGroup<agName> agName##_info (name); + static sys::cas_flag initialized = 0; \ + sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ + if (old_val == 0) initialize##agName##AnalysisGroupOnce(Registry); \ + } + #define INITIALIZE_AG_PASS(passName, agName, arg, name, cfg, analysis, def) \ static void* initialize##passName##PassOnce(PassRegistry &Registry) { \ @@ -260,11 +261,11 @@ struct RegisterAnalysisGroup : public RegisterAGBase { return AI; \ } \ void llvm::initialize##passName##Pass(PassRegistry &Registry) { \ - ATTRIBUTE_USED \ - static void* initialized = initialize##passName##PassOnce(Registry); \ - } \ - static RegisterPass<passName> passName ## _info(arg, name, cfg, analysis); \ - static RegisterAnalysisGroup<agName, def> passName ## _ag(passName ## _info); + static sys::cas_flag initialized = 0; \ + sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ + if (old_val == 0) initialize##passName##PassOnce(Registry); \ + } + #define INITIALIZE_AG_PASS_BEGIN(passName, agName, arg, n, cfg, analysis, def) \ static void* initialize##passName##PassOnce(PassRegistry &Registry) { @@ -279,11 +280,10 @@ struct RegisterAnalysisGroup : public RegisterAGBase { return AI; \ } \ void llvm::initialize##passName##Pass(PassRegistry &Registry) { \ - ATTRIBUTE_USED \ - static void* initialized = initialize##passName##PassOnce(Registry); \ - } \ - static RegisterPass<passName> passName ## _info(arg, n, cfg, analysis); \ - static RegisterAnalysisGroup<agName, def> passName ## _ag(passName ## _info); + static sys::cas_flag initialized = 0; \ + sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \ + if (old_val == 0) initialize##passName##PassOnce(Registry); \ + } //===--------------------------------------------------------------------------- /// PassRegistrationListener class - This class is meant to be derived from by |