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| author | Jakub Jelinek <jakub@redhat.com> | 2018-11-20 21:44:38 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-11-20 21:44:38 +0100 |
| commit | 260a993319bdf4ebc01298b7e802afbd3b35574a (patch) | |
| tree | 4b9e2eecda347c32bfd5e0a1066da9ed4d289a5f /gcc/omp-simd-clone.c | |
| parent | 59730cc567ecdd3a550d9c005dbaa63620cc0f19 (diff) | |
| download | gcc-260a993319bdf4ebc01298b7e802afbd3b35574a.zip gcc-260a993319bdf4ebc01298b7e802afbd3b35574a.tar.gz gcc-260a993319bdf4ebc01298b7e802afbd3b35574a.tar.bz2 | |
re PR tree-optimization/87895 (ICE in purge_dead_edges, at cfgrtl.c:3246)
PR tree-optimization/87895
* omp-simd-clone.c (ipa_simd_modify_function_body): When removing
or replacing GIMPLE_RETURN, set EDGE_FALLTHRU on the edge to EXIT.
(simd_clone_adjust): Don't set EDGE_FALLTHRU here. In a loop that
redirects edges to EXIT to edges to incr_bb, iterate while EXIT
has any preds and always use EDGE_PRED (, 0).
* gcc.dg/gomp/pr87895-1.c: New test.
* gcc.dg/gomp/pr87895-2.c: New test.
* gcc.dg/gomp/pr87895-3.c: New test.
From-SVN: r266328
Diffstat (limited to 'gcc/omp-simd-clone.c')
| -rw-r--r-- | gcc/omp-simd-clone.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/gcc/omp-simd-clone.c b/gcc/omp-simd-clone.c index 7aa362a..ba03bd5 100644 --- a/gcc/omp-simd-clone.c +++ b/gcc/omp-simd-clone.c @@ -994,6 +994,8 @@ ipa_simd_modify_function_body (struct cgraph_node *node, if (greturn *return_stmt = dyn_cast <greturn *> (stmt)) { tree retval = gimple_return_retval (return_stmt); + edge e = find_edge (bb, EXIT_BLOCK_PTR_FOR_FN (cfun)); + e->flags |= EDGE_FALLTHRU; if (!retval) { gsi_remove (&gsi, true); @@ -1150,14 +1152,9 @@ simd_clone_adjust (struct cgraph_node *node) incr_bb = create_empty_bb (orig_exit); incr_bb->count = profile_count::zero (); add_bb_to_loop (incr_bb, body_bb->loop_father); - /* The succ of orig_exit was EXIT_BLOCK_PTR_FOR_FN (cfun), with an empty - flag. Set it now to be a FALLTHRU_EDGE. */ - gcc_assert (EDGE_COUNT (orig_exit->succs) == 1); - EDGE_SUCC (orig_exit, 0)->flags |= EDGE_FALLTHRU; - for (unsigned i = 0; - i < EDGE_COUNT (EXIT_BLOCK_PTR_FOR_FN (cfun)->preds); ++i) + while (EDGE_COUNT (EXIT_BLOCK_PTR_FOR_FN (cfun)->preds)) { - edge e = EDGE_PRED (EXIT_BLOCK_PTR_FOR_FN (cfun), i); + edge e = EDGE_PRED (EXIT_BLOCK_PTR_FOR_FN (cfun), 0); redirect_edge_succ (e, incr_bb); incr_bb->count += e->count (); } |