diff options
| author | Richard Biener <rguenther@suse.de> | 2018-08-28 10:13:18 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2018-08-28 10:13:18 +0000 |
| commit | 7b3ca2443530663016432f3b6515e408ce35ba64 (patch) | |
| tree | f417ac93a767513d49186205a0fc4d786aaed42c /gcc/tree-ssa-pre.c | |
| parent | 6df46f59d3bb38f31c6f7a5e06231944d18fa4dc (diff) | |
| download | gcc-7b3ca2443530663016432f3b6515e408ce35ba64.zip gcc-7b3ca2443530663016432f3b6515e408ce35ba64.tar.gz gcc-7b3ca2443530663016432f3b6515e408ce35ba64.tar.bz2 | |
re PR tree-optimization/87117 (ICE in eliminate_dom_walker::eliminate_cleanup(bool) at gcc/gcc/tree-ssa-sccvn.c:5431 since r263875)
2018-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/87117
* tree-ssa-pre.c (compute_avail): Do not make expressions
with predicated values available.
(get_expr_value_id): Assert we do not run into predicated value
expressions.
* gcc.dg/pr87117-2.c: New testcase.
From-SVN: r263910
Diffstat (limited to 'gcc/tree-ssa-pre.c')
| -rw-r--r-- | gcc/tree-ssa-pre.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c index 2dce88b..267086c 100644 --- a/gcc/tree-ssa-pre.c +++ b/gcc/tree-ssa-pre.c @@ -663,6 +663,7 @@ get_expr_value_id (pre_expr expr) id = VN_INFO (PRE_EXPR_NAME (expr))->value_id; break; case NARY: + gcc_assert (!PRE_EXPR_NARY (expr)->predicated_values); id = PRE_EXPR_NARY (expr)->value_id; break; case REFERENCE: @@ -3902,7 +3903,7 @@ compute_avail (void) continue; vn_nary_op_lookup_stmt (stmt, &nary); - if (!nary) + if (!nary || nary->predicated_values) continue; /* If the NARY traps and there was a preceding |