diff options
author | Alexey Bataev <a.bataev@hotmail.com> | 2015-04-16 05:39:01 +0000 |
---|---|---|
committer | Alexey Bataev <a.bataev@hotmail.com> | 2015-04-16 05:39:01 +0000 |
commit | 6ff3f69756850538a211d74c06176826244ab970 (patch) | |
tree | 4c1eafd2da27749d79c139bd9162be1c664cfdb8 /lib/AST/Stmt.cpp | |
parent | 5a78b2480c717cbbf91747a154e3556b40ae8b76 (diff) |
[OPENMP] Codegen for 'copyin' clause in 'parallel' directive.
Emits the following code for the clause at the beginning of the outlined function for implicit threads:
if (<not a master thread>) {
...
<thread local copy of var> = <master thread local copy of var>;
...
}
<sync point>;
Checking for a non-master thread is performed by comparing of the address of the thread local variable with the address of the master's variable. Master thread always uses original variables, so you always know the address of the variable in the master thread.
Differential Revision: http://reviews.llvm.org/D9026
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@235075 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AST/Stmt.cpp')
-rw-r--r-- | lib/AST/Stmt.cpp | 38 |
1 files changed, 31 insertions, 7 deletions
diff --git a/lib/AST/Stmt.cpp b/lib/AST/Stmt.cpp index 205a3229ee..0e8652f82a 100644 --- a/lib/AST/Stmt.cpp +++ b/lib/AST/Stmt.cpp @@ -1395,17 +1395,41 @@ OMPAlignedClause *OMPAlignedClause::CreateEmpty(const ASTContext &C, return new (Mem) OMPAlignedClause(NumVars); } -OMPCopyinClause *OMPCopyinClause::Create(const ASTContext &C, - SourceLocation StartLoc, - SourceLocation LParenLoc, - SourceLocation EndLoc, - ArrayRef<Expr *> VL) { +void OMPCopyinClause::setSourceExprs(ArrayRef<Expr *> SrcExprs) { + assert(SrcExprs.size() == varlist_size() && "Number of source expressions is " + "not the same as the " + "preallocated buffer"); + std::copy(SrcExprs.begin(), SrcExprs.end(), varlist_end()); +} + +void OMPCopyinClause::setDestinationExprs(ArrayRef<Expr *> DstExprs) { + assert(DstExprs.size() == varlist_size() && "Number of destination " + "expressions is not the same as " + "the preallocated buffer"); + std::copy(DstExprs.begin(), DstExprs.end(), getSourceExprs().end()); +} + +void OMPCopyinClause::setAssignmentOps(ArrayRef<Expr *> AssignmentOps) { + assert(AssignmentOps.size() == varlist_size() && + "Number of assignment expressions is not the same as the preallocated " + "buffer"); + std::copy(AssignmentOps.begin(), AssignmentOps.end(), + getDestinationExprs().end()); +} + +OMPCopyinClause *OMPCopyinClause::Create( + const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc, + SourceLocation EndLoc, ArrayRef<Expr *> VL, ArrayRef<Expr *> SrcExprs, + ArrayRef<Expr *> DstExprs, ArrayRef<Expr *> AssignmentOps) { void *Mem = C.Allocate(llvm::RoundUpToAlignment(sizeof(OMPCopyinClause), llvm::alignOf<Expr *>()) + - sizeof(Expr *) * VL.size()); + 4 * sizeof(Expr *) * VL.size()); OMPCopyinClause *Clause = new (Mem) OMPCopyinClause(StartLoc, LParenLoc, EndLoc, VL.size()); Clause->setVarRefs(VL); + Clause->setSourceExprs(SrcExprs); + Clause->setDestinationExprs(DstExprs); + Clause->setAssignmentOps(AssignmentOps); return Clause; } @@ -1413,7 +1437,7 @@ OMPCopyinClause *OMPCopyinClause::CreateEmpty(const ASTContext &C, unsigned N) { void *Mem = C.Allocate(llvm::RoundUpToAlignment(sizeof(OMPCopyinClause), llvm::alignOf<Expr *>()) + - sizeof(Expr *) * N); + 4 * sizeof(Expr *) * N); return new (Mem) OMPCopyinClause(N); } |