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| author | Alexey Bataev <a.bataev@hotmail.com> | 2014-09-22 10:01:53 +0000 |
|---|---|---|
| committer | Alexey Bataev <a.bataev@hotmail.com> | 2014-09-22 10:01:53 +0000 |
| commit | 3a3bf0bbe35fee25219e075ee9b76abb8633c24b (patch) | |
| tree | 3010cda60f887c06f50ed0323ed9ee4d6ec59c72 /clang/lib/CodeGen/CGOpenMPRuntime.h | |
| parent | b105a2c3e07f49e3af7400d7e58de52acfd2c733 (diff) | |
| download | bcm5719-llvm-3a3bf0bbe35fee25219e075ee9b76abb8633c24b.tar.gz bcm5719-llvm-3a3bf0bbe35fee25219e075ee9b76abb8633c24b.zip | |
[OPENMP] Codegen for 'omp critical' directive.
This patch adds codegen for constructs:
#pragma omp critical [name]
<body>
It generates global variable ".gomp_critical_user_[name].var" of type int32[8]. Then it generates library call "kmpc_critical(loc, gtid, .gomp_critical_user_[name].var)", code for <body> statement and final call "kmpc_end_critical(loc, gtid, .gomp_critical_user_[name].var)".
Differential Revision: http://reviews.llvm.org/D5202
llvm-svn: 218239
Diffstat (limited to 'clang/lib/CodeGen/CGOpenMPRuntime.h')
| -rw-r--r-- | clang/lib/CodeGen/CGOpenMPRuntime.h | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.h b/clang/lib/CodeGen/CGOpenMPRuntime.h index 3759a771039..d32c43a8b03 100644 --- a/clang/lib/CodeGen/CGOpenMPRuntime.h +++ b/clang/lib/CodeGen/CGOpenMPRuntime.h @@ -16,6 +16,7 @@ #include "clang/AST/Type.h" #include "llvm/ADT/DenseMap.h" +#include "llvm/ADT/StringMap.h" #include "llvm/IR/Type.h" #include "llvm/IR/Value.h" @@ -27,6 +28,7 @@ class Constant; class Function; class Module; class StructLayout; +class ArrayType; class FunctionType; class StructType; class Type; @@ -67,8 +69,14 @@ public: // Call to void __kmpc_fork_call(ident_t *loc, kmp_int32 argc, kmpc_micro // microtask, ...); OMPRTL__kmpc_fork_call, - // Call to kmp_int32 kmpc_global_thread_num(ident_t *loc); - OMPRTL__kmpc_global_thread_num + // Call to __kmpc_int32 kmpc_global_thread_num(ident_t *loc); + OMPRTL__kmpc_global_thread_num, + // Call to void __kmpc_critical(ident_t ∗loc, kmp_int32 global_tid, + // kmp_critical_name ∗crit); + OMPRTL__kmpc_critical, + // Call to void __kmpc_end_critical(ident_t ∗loc, kmp_int32 global_tid, + // kmp_critical_name ∗crit); + OMPRTL__kmpc_end_critical }; private: @@ -134,10 +142,15 @@ private: /// \brief Map of local gtid and functions. typedef llvm::DenseMap<llvm::Function *, llvm::Value *> OpenMPGtidMapTy; OpenMPGtidMapTy OpenMPGtidMap; + /// \brief Type kmp_critical_name, originally defined as typedef kmp_int32 + /// kmp_critical_name[8]; + llvm::ArrayType *KmpCriticalNameTy; + /// \brief Map of critical regions names and the corresponding lock objects. + llvm::StringMap<llvm::Value *, llvm::BumpPtrAllocator> CriticalRegionVarNames; public: explicit CGOpenMPRuntime(CodeGenModule &CGM); - ~CGOpenMPRuntime() {} + virtual ~CGOpenMPRuntime() {} /// \brief Cleans up references to the objects in finished function. /// \param CGF Reference to finished CodeGenFunction. @@ -170,6 +183,31 @@ public: /// \param Function OpenMP runtime function. /// \return Specified function. llvm::Constant *CreateRuntimeFunction(OpenMPRTLFunction Function); + + /// \brief Returns corresponding lock object for the specified critical region + /// name. If the lock object does not exist it is created, otherwise the + /// reference to the existing copy is returned. + llvm::Value *GetCriticalRegionLock(StringRef CriticalName); + + /// \brief Emits start of the critical region by calling void + /// __kmpc_critical(ident_t ∗loc, kmp_int32 global_tid, kmp_critical_name + /// ∗\a RegionLock) + /// \param CGF Reference to current CodeGenFunction. + /// \param RegionLock The lock object for critical region. + /// \param Loc Location of the construct. + virtual void EmitOMPCriticalRegionStart(CodeGenFunction &CGF, + llvm::Value *RegionLock, + SourceLocation Loc); + + /// \brief Emits end of the critical region by calling void + /// __kmpc_end_critical(ident_t ∗loc, kmp_int32 global_tid, kmp_critical_name + /// ∗\a RegionLock) + /// \param CGF Reference to current CodeGenFunction. + /// \param RegionLock The lock object for critical region. + /// \param Loc Location of the construct. + virtual void EmitOMPCriticalRegionEnd(CodeGenFunction &CGF, + llvm::Value *RegionLock, + SourceLocation Loc); }; } // namespace CodeGen } // namespace clang |
