From f7f186847d9a170f1f1926e77cc4f00c7ca0b92b Mon Sep 17 00:00:00 2001 From: Tom de Vries Date: Thu, 3 Sep 2015 11:00:46 +0000 Subject: [PATCH] Add param parloops-chunk-size 2015-09-03 Tom de Vries * doc/invoke.texi (parloops-chunk-size): Add item. * params.def (PARAM_PARLOOPS_CHUNK_SIZE): Add DEFPARAM. * tree-parloops.c: Include params.h. (create_parallel_loop): Set chunk-size of schedule of omp-for loop, if param parloops-chunk-size is used. From-SVN: r227434 --- gcc/ChangeLog | 8 ++++++++ gcc/doc/invoke.texi | 4 ++++ gcc/params.def | 5 +++++ gcc/tree-parloops.c | 5 +++++ 4 files changed, 22 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 57234e7c1e0..1d0f7a3fa6a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2015-09-03 Tom de Vries + + * doc/invoke.texi (parloops-chunk-size): Add item. + * params.def (PARAM_PARLOOPS_CHUNK_SIZE): Add DEFPARAM. + * tree-parloops.c: Include params.h. + (create_parallel_loop): Set chunk-size of schedule of omp-for loop, if + param parloops-chunk-size is used. + 2015-09-03 Naveen H.S PR middle-end/67351 diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index e7bbcec27bb..d7dc64e46da 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -11001,6 +11001,10 @@ path. The default is 10. Maximum number of new jump thread paths to create for a finite state automaton. The default is 50. +@item parloops-chunk-size +Chunk size of omp schedule for loops parallelized by parloops. The default +is 0. + @end table @end table diff --git a/gcc/params.def b/gcc/params.def index c8b3a90e206..11238cbbe78 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -1135,6 +1135,11 @@ DEFPARAM (PARAM_MAX_FSM_THREAD_PATHS, "max-fsm-thread-paths", "Maximum number of new jump thread paths to create for a finite state automaton", 50, 1, 999999) + +DEFPARAM (PARAM_PARLOOPS_CHUNK_SIZE, + "parloops-chunk-size", + "Chunk size of omp schedule for loops parallelized by parloops", + 0, 0, 0) /* Local variables: diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c index d017479ec2e..c164121fdb4 100644 --- a/gcc/tree-parloops.c +++ b/gcc/tree-parloops.c @@ -57,6 +57,7 @@ along with GCC; see the file COPYING3. If not see #include "tree-nested.h" #include "cgraph.h" #include "tree-ssa.h" +#include "params.h" /* This pass tries to distribute iterations of loops into several threads. The implementation is straightforward -- for each loop we test whether its @@ -2092,6 +2093,10 @@ create_parallel_loop (struct loop *loop, tree loop_fn, tree data, type = TREE_TYPE (cvar); t = build_omp_clause (loc, OMP_CLAUSE_SCHEDULE); OMP_CLAUSE_SCHEDULE_KIND (t) = OMP_CLAUSE_SCHEDULE_STATIC; + int chunk_size = PARAM_VALUE (PARAM_PARLOOPS_CHUNK_SIZE); + if (chunk_size != 0) + OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (t) + = build_int_cst (integer_type_node, chunk_size); for_stmt = gimple_build_omp_for (NULL, GF_OMP_FOR_KIND_FOR, t, 1, NULL); gimple_set_location (for_stmt, loc); -- 2.30.2