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author | Alexey Bataev <a.bataev@hotmail.com> | 2016-03-03 05:21:39 +0000 |
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committer | Alexey Bataev <a.bataev@hotmail.com> | 2016-03-03 05:21:39 +0000 |
commit | 94a4f0cb5f8a44e1228f1fd06c8d970125084c71 (patch) | |
tree | 5e5bfcc492ec4e95123b4a51523a59da17ebebf5 /clang/lib/Sema/ScopeInfo.cpp | |
parent | 2a4985c929e93e623a2899f485f6f5f014bf4c83 (diff) | |
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[OPENMP 4.0] Initial support for 'omp declare reduction' construct.
Add parsing, sema analysis and serialization/deserialization for 'declare reduction' construct.
User-defined reductions are defined as
#pragma omp declare reduction( reduction-identifier : typename-list : combiner ) [initializer ( initializer-expr )]
These custom reductions may be used in 'reduction' clauses of OpenMP constructs. The combiner specifies how partial results can be combined into a single value. The
combiner can use the special variable identifiers omp_in and omp_out that are of the type of the variables being reduced with this reduction-identifier. Each of them will
denote one of the values to be combined before executing the combiner. It is assumed that the special omp_out identifier will refer to the storage that holds the resulting
combined value after executing the combiner.
As the initializer-expr value of a user-defined reduction is not known a priori the initializer-clause can be used to specify one. Then the contents of the initializer-clause
will be used as the initializer for private copies of reduction list items where the omp_priv identifier will refer to the storage to be initialized. The special identifier
omp_orig can also appear in the initializer-clause and it will refer to the storage of the original variable to be reduced.
Differential Revision: http://reviews.llvm.org/D11182
llvm-svn: 262582
Diffstat (limited to 'clang/lib/Sema/ScopeInfo.cpp')
-rw-r--r-- | clang/lib/Sema/ScopeInfo.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/clang/lib/Sema/ScopeInfo.cpp b/clang/lib/Sema/ScopeInfo.cpp index cbd7ef7..ef9eed6 100644 --- a/clang/lib/Sema/ScopeInfo.cpp +++ b/clang/lib/Sema/ScopeInfo.cpp @@ -28,6 +28,7 @@ void FunctionScopeInfo::Clear() { HasBranchIntoScope = false; HasIndirectGoto = false; HasDroppedStmt = false; + HasOMPDeclareReductionCombiner = false; ObjCShouldCallSuper = false; ObjCIsDesignatedInit = false; ObjCWarnForNoDesignatedInitChain = false; |