Commit Graph

14 Commits

Author SHA1 Message Date
David Sheinkman 92589990ba [OpenMP] fix segfault when a variable referenced in reduction clause is a reference parameter\nDifferential Revision: http://reviews.llvm.org/D24524
llvm-svn: 283223
2016-10-04 14:41:36 +00:00
Alexey Bataev c5970623e0 Revert "[OPENMP] Allow skip expression after comma in clauses with lists."
This reverts commit http://reviews.llvm.org/rL265003. After some
thoughts decided to emit errors here.

llvm-svn: 265119
2016-04-01 08:43:42 +00:00
Alexey Bataev 05968174c3 [OPENMP] Allow skip expression after comma in clauses with lists.
Compatibility fix for better compatibility with the existing software.

llvm-svn: 265003
2016-03-31 09:13:44 +00:00
Alexey Bataev a839dddf92 [OPENMP 4.0] Use 'declare reduction' constructs in 'reduction' clauses.
OpenMP 4.0 allows to define custom reduction operations using '#pragma
omp declare reduction' construct. Patch allows to use this custom
defined reduction operations in 'reduction' clauses.

llvm-svn: 263701
2016-03-17 10:19:46 +00:00
Alexey Bataev 1189bd0205 [OPENMP 4.5] Allow arrays in 'reduction' clause.
OpenMP 4.5, alogn with array sections, allows to use variables of array type in reductions.

llvm-svn: 258804
2016-01-26 12:20:39 +00:00
Alexey Bataev dffa93a620 [OPENMP] Fixed processing of predetermined data-sharing attributes
Predetermined data-shared attributes for local variables are now considered as implicit. Also, patch prohibits changin of DSA for static memebers of classes.

llvm-svn: 255229
2015-12-10 08:20:58 +00:00
Charles Li e7cbb3ed4f [Lit Test] Updated 34 Lit tests to be C++11 compatible.
Added expected diagnostics new to C++11.
Expanded RUN line to: default, C++98/03 and C++11.

llvm-svn: 253371
2015-11-17 20:25:05 +00:00
Alexey Bataev a176421da5 [OPENMP 4.1] Sema analysis for array sections in 'reduction' clause.
OpenMP 4.1 allows to use array sections|subscript expressions in 'reduction' clauses. Added sema analysis, updated tests.

llvm-svn: 248880
2015-09-30 09:22:36 +00:00
Kelvin Li 4eea8c6b82 Allow static local variables specified on data-sharing attribute clauses.
http://reviews.llvm.org/D11619

llvm-svn: 247715
2015-09-15 18:56:58 +00:00
Alexey Bataev db39021cee [OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492)
-fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option that allows to override effect of -fopenmp and link libgomp library (if -fopenmp=libgomp is specified).
Differential Revision: http://reviews.llvm.org/D9736

llvm-svn: 237769
2015-05-20 04:24:19 +00:00
Alexey Bataev 6ddfe1a6af [OPENMP] Fix for checking of data-sharing attributes for canonical var decls only.
Currently checks for active data-sharing attributes for variables are performed for found var decls. Instead these checks must be performed for canonical decls of these variables to avoid possible troubles with with the differently qualified re-declarations of the same variable, for example:
namespace A { int x; }
namespace B { using A::x; }
Both A::x and B::x actually reference the same object A::x and this fact must be taken into account during data-sharing attributes analysis.

llvm-svn: 235096
2015-04-16 13:49:42 +00:00
Alexey Bataev 794ba0dcb7 [OPENMP] Codegen for 'reduction' clause in 'parallel' directive.
Emit a code for reduction clause. Next code should be emitted for reductions:

static kmp_critical_name lock = { 0 };

void reduce_func(void *lhs[<n>], void *rhs[<n>]) {
  ...
  *(Type<i> *)lhs[i] = RedOp<i>(*(Type<i> *)lhs[i], *(Type<i> *)rhs[i]);
  ...
}

... void *RedList[<n>] = {&<RHSExprs>[0], ..., &<RHSExprs>[<n> - 1]};
switch (__kmpc_reduce{_nowait}(<loc>, <gtid>, <n>, sizeof(RedList), RedList, reduce_func, &<lock>)) {
case 1:
  ...
  <LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i]);
  ...
  __kmpc_end_reduce{_nowait}(<loc>, <gtid>, &<lock>);
  break;
case 2:
  ...
  Atomic(<LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i]));
  ...
  break;
default:
  ;
}
Reduction variables are a kind of a private variables, they have private copies, but initial values are chosen in accordance with the reduction operation.

Differential Revision: http://reviews.llvm.org/D8915

llvm-svn: 234583
2015-04-10 10:43:45 +00:00
Alexey Bataev 24b04aa393 [OPENMP] Fixed data-sharing attributes processing for variables with global
storage.
This fix allows to use non-constant global variables, static local variables and static data
members in data-sharing attribute clauses in parallel and task regions.

llvm-svn: 226250
2015-01-16 07:11:33 +00:00
Alexander Musman e4e893bb36 [OPENMP] Parsing/Sema of directive omp parallel for simd
llvm-svn: 218299
2014-09-23 09:33:00 +00:00