clang  3.7.0
Public Member Functions | List of all members
clang::CodeGen::CodeGenFunction::OMPPrivateScope Class Reference

The scope used to remap some variables as private in the OpenMP loop body (or other captured region emitted without outlining), and to restore old vars back on exit. More...

#include <CodeGenFunction.h>

Inheritance diagram for clang::CodeGen::CodeGenFunction::OMPPrivateScope:
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Collaboration diagram for clang::CodeGen::CodeGenFunction::OMPPrivateScope:
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Public Member Functions

 OMPPrivateScope (CodeGenFunction &CGF)
 Enter a new OpenMP private scope. More...
 
bool addPrivate (const VarDecl *LocalVD, const std::function< llvm::Value *()> &PrivateGen)
 Registers LocalVD variable as a private and apply PrivateGen function for it to generate corresponding private variable. PrivateGen returns an address of the generated private variable. More...
 
bool Privatize ()
 Privatizes local variables previously registered as private. Registration is separate from the actual privatization to allow initializers use values of the original variables, not the private one. This is important, for example, if the private variable is a class variable initialized by a constructor that references other private variables. But at initialization original variables must be used, not private copies. More...
 
void ForceCleanup ()
 
 ~OMPPrivateScope ()
 Exit scope - all the mapped variables are restored. More...
 
- Public Member Functions inherited from clang::CodeGen::CodeGenFunction::RunCleanupsScope
 RunCleanupsScope (CodeGenFunction &CGF)
 Enter a new cleanup scope. More...
 
 ~RunCleanupsScope ()
 Exit this cleanup scope, emitting any accumulated cleanups. More...
 
bool requiresCleanups () const
 Determine whether this scope requires any cleanups. More...
 
void ForceCleanup ()
 Force the emission of cleanups now, instead of waiting until this object is destroyed. More...
 

Additional Inherited Members

- Protected Attributes inherited from clang::CodeGen::CodeGenFunction::RunCleanupsScope
bool PerformCleanup
 
CodeGenFunctionCGF
 

Detailed Description

The scope used to remap some variables as private in the OpenMP loop body (or other captured region emitted without outlining), and to restore old vars back on exit.

Definition at line 561 of file CodeGenFunction.h.

Constructor & Destructor Documentation

clang::CodeGen::CodeGenFunction::OMPPrivateScope::OMPPrivateScope ( CodeGenFunction CGF)
inlineexplicit

Enter a new OpenMP private scope.

Definition at line 572 of file CodeGenFunction.h.

clang::CodeGen::CodeGenFunction::OMPPrivateScope::~OMPPrivateScope ( )
inline

Exit scope - all the mapped variables are restored.

Definition at line 617 of file CodeGenFunction.h.

References ForceCleanup(), and clang::CodeGen::CodeGenFunction::RunCleanupsScope::PerformCleanup.

Member Function Documentation

bool clang::CodeGen::CodeGenFunction::OMPPrivateScope::addPrivate ( const VarDecl LocalVD,
const std::function< llvm::Value *()> &  PrivateGen 
)
inline

Registers LocalVD variable as a private and apply PrivateGen function for it to generate corresponding private variable. PrivateGen returns an address of the generated private variable.

Returns
true if the variable is registered as private, false if it has been privatized already.

Definition at line 580 of file CodeGenFunction.h.

References clang::CodeGen::CodeGenFunction::RunCleanupsScope::CGF, and clang::CodeGen::CodeGenFunction::RunCleanupsScope::PerformCleanup.

Referenced by emitLinearClauseFinal(), clang::CodeGen::CodeGenFunction::EmitOMPCopy(), clang::CodeGen::CodeGenFunction::EmitOMPFirstprivateClause(), clang::CodeGen::CodeGenFunction::EmitOMPLastprivateClauseInit(), clang::CodeGen::CodeGenFunction::EmitOMPPrivateClause(), clang::CodeGen::CodeGenFunction::EmitOMPReductionClauseInit(), emitPrivateLinearVars(), emitPrivateLoopCounters(), and emitReductionFunction().

void clang::CodeGen::CodeGenFunction::OMPPrivateScope::ForceCleanup ( )
inline
bool clang::CodeGen::CodeGenFunction::OMPPrivateScope::Privatize ( )
inline

Privatizes local variables previously registered as private. Registration is separate from the actual privatization to allow initializers use values of the original variables, not the private one. This is important, for example, if the private variable is a class variable initialized by a constructor that references other private variables. But at initialization original variables must be used, not private copies.

Returns
true if at least one variable was privatized, false otherwise.

Definition at line 599 of file CodeGenFunction.h.

References clang::CodeGen::CodeGenFunction::RunCleanupsScope::CGF.

Referenced by emitLinearClauseFinal(), clang::CodeGen::CodeGenFunction::EmitOMPCopy(), clang::CodeGen::CodeGenFunction::EmitOMPParallelDirective(), clang::CodeGen::CodeGenFunction::EmitOMPSimdDirective(), clang::CodeGen::CodeGenFunction::EmitOMPSingleDirective(), emitPreCond(), and emitReductionFunction().


The documentation for this class was generated from the following file: