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.
this patch makes create_parallel_loop return void. The result is
currently unused.
Thanks,
- Tom
Make create_parallel_loop return void
2015-11-09 Tom de Vries <t...@codesourcery.com>
* tree-parloops.c (create_parallel_loop): Return void.
---
gcc/tree-parloops.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c
index 6a49aa9..17415a8 100644
--- a/gcc/tree-parloops.c
+++ b/gcc/tree-parloops.c
@@ -1986,10 +1986,9 @@ transform_to_exit_first_loop (struct loop *loop,
/* Create the parallel constructs for LOOP as described in gen_parallel_loop.
LOOP_FN and DATA are the arguments of GIMPLE_OMP_PARALLEL.
NEW_DATA is the variable that should be initialized from the argument
- of LOOP_FN. N_THREADS is the requested number of threads. Returns the
- basic block containing GIMPLE_OMP_PARALLEL tree. */
+ of LOOP_FN. N_THREADS is the requested number of threads. */
-static basic_block
+static void
create_parallel_loop (struct loop *loop, tree loop_fn, tree data,
tree new_data, unsigned n_threads, location_t loc)
{
@@ -2162,8 +2161,6 @@ create_parallel_loop (struct loop *loop, tree loop_fn, tree data,
/* After the above dom info is hosed. Re-compute it. */
free_dominance_info (CDI_DOMINATORS);
calculate_dominance_info (CDI_DOMINATORS);
-
- return paral_bb;
}
/* Generates code to execute the iterations of LOOP in N_THREADS
--
1.9.1
