diff options
| author | Tom de Vries <tom@codesourcery.com> | 2015-10-12 14:14:11 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2015-10-12 14:14:11 +0000 |
| commit | 7aab672f4239ec94b577d1377b2cd0ac8655df35 (patch) | |
| tree | 775383ae9d05c78a66379b7c0464fd20b0f4f490 | |
| parent | 9371aeccf2c506d5896a5ec7a947137ab465de93 (diff) | |
| download | gcc-7aab672f4239ec94b577d1377b2cd0ac8655df35.zip gcc-7aab672f4239ec94b577d1377b2cd0ac8655df35.tar.gz gcc-7aab672f4239ec94b577d1377b2cd0ac8655df35.tar.bz2 | |
Handle simple latch in expand_omp_for_generic
2015-10-12 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/67476
* omp-low.c (expand_omp_for_generic): Handle simple latch.
From-SVN: r228717
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/omp-low.c | 9 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4d721c1..97f4a0d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2015-10-12 Tom de Vries <tom@codesourcery.com> + + PR tree-optimization/67476 + * omp-low.c (expand_omp_for_generic): Handle simple latch. + 2015-10-12 Christophe Lyon <christophe.lyon@linaro.org> * config/aarch64/aarch64-simd-builtins.def: Update builtins diff --git a/gcc/omp-low.c b/gcc/omp-low.c index cdcf9d6..f59a6a4 100644 --- a/gcc/omp-low.c +++ b/gcc/omp-low.c @@ -6162,7 +6162,9 @@ expand_omp_for_generic (struct omp_region *region, if (!broken_loop) { l2_bb = create_empty_bb (cont_bb); - gcc_assert (BRANCH_EDGE (cont_bb)->dest == l1_bb); + gcc_assert (BRANCH_EDGE (cont_bb)->dest == l1_bb + || (single_succ_edge (BRANCH_EDGE (cont_bb)->dest)->dest + == l1_bb)); gcc_assert (EDGE_COUNT (cont_bb->succs) == 2); } else @@ -6438,6 +6440,11 @@ expand_omp_for_generic (struct omp_region *region, make_edge (cont_bb, l2_bb, EDGE_FALSE_VALUE); add_bb_to_loop (l2_bb, cont_bb->loop_father); e = find_edge (cont_bb, l1_bb); + if (e == NULL) + { + e = BRANCH_EDGE (cont_bb); + gcc_assert (single_succ (e->dest) == l1_bb); + } if (gimple_omp_for_combined_p (fd->for_stmt)) { remove_edge (e); |