On 09/11/15 16:35, Tom de Vries wrote:
Hi,
this patch series for stage1 trunk adds support to:
- parallelize oacc kernels regions using parloops, and
- map the loops onto the oacc gang dimension.
The patch series contains these patches:
1 Insert new exit block only when needed in
transform_to_exit_first_loop_alt
2 Make create_parallel_loop return void
3 Ignore reduction clause on kernels directive
4 Implement -foffload-alias
5 Add in_oacc_kernels_region in struct loop
6 Add pass_oacc_kernels
7 Add pass_dominator_oacc_kernels
8 Add pass_ch_oacc_kernels
9 Add pass_parallelize_loops_oacc_kernels
10 Add pass_oacc_kernels pass group in passes.def
11 Update testcases after adding kernels pass group
12 Handle acc loop directive
13 Add c-c++-common/goacc/kernels-*.c
14 Add gfortran.dg/goacc/kernels-*.f95
15 Add libgomp.oacc-c-c++-common/kernels-*.c
16 Add libgomp.oacc-fortran/kernels-*.f95
The first 9 patches are more or less independent, but patches 10-16 are
intended to be committed at the same time.
Bootstrapped and reg-tested on x86_64.
Build and reg-tested with nvidia accelerator, in combination with a
patch that enables accelerator testing (which is submitted at
https://gcc.gnu.org/ml/gcc-patches/2015-10/msg01771.html ).
I'll post the individual patches in reply to this message.
As discussed here (
https://gcc.gnu.org/ml/gcc-patches/2015-11/msg00785.html ), the kernels
directive does not allow the reduction clause. This patch fixes that.
Thanks,
- Tom
Ignore reduction clause on kernels directive
2015-11-08 Tom de Vries <t...@codesourcery.com>
* c-omp.c (c_oacc_split_loop_clauses): Don't copy OMP_CLAUSE_REDUCTION,
classify as loop clause.
---
gcc/c-family/c-omp.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/gcc/c-family/c-omp.c b/gcc/c-family/c-omp.c
index 3e93b59..a3b99b2 100644
--- a/gcc/c-family/c-omp.c
+++ b/gcc/c-family/c-omp.c
@@ -867,7 +867,7 @@ c_omp_check_loop_iv_exprs (location_t stmt_loc, tree declv, tree decl,
tree
c_oacc_split_loop_clauses (tree clauses, tree *not_loop_clauses)
{
- tree next, loop_clauses, t;
+ tree next, loop_clauses;
loop_clauses = *not_loop_clauses = NULL_TREE;
for (; clauses ; clauses = next)
@@ -886,16 +886,11 @@ c_oacc_split_loop_clauses (tree clauses, tree *not_loop_clauses)
case OMP_CLAUSE_SEQ:
case OMP_CLAUSE_INDEPENDENT:
case OMP_CLAUSE_PRIVATE:
+ case OMP_CLAUSE_REDUCTION:
OMP_CLAUSE_CHAIN (clauses) = loop_clauses;
loop_clauses = clauses;
break;
- /* Reductions belong in both constructs. */
- case OMP_CLAUSE_REDUCTION:
- t = copy_node (clauses);
- OMP_CLAUSE_CHAIN (t) = loop_clauses;
- loop_clauses = t;
-
/* Parallel/kernels clauses. */
default:
OMP_CLAUSE_CHAIN (clauses) = *not_loop_clauses;
--
1.9.1
