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| author | Richard Biener <rguenther@suse.de> | 2018-09-03 14:29:00 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2018-09-03 14:29:00 +0000 |
| commit | 339e6723c9c2c062933c17eec128407a0778d99d (patch) | |
| tree | 2fd2df65b089c28553d9199311459088d891fe2c /gcc/tree-ssa-sccvn.c | |
| parent | 7efe0dd0b43db1ac5070908290a3febfcfb73513 (diff) | |
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re PR tree-optimization/87200 (ICE in set_ssa_val_to, at tree-ssa-sccvn.c:3629)
2018-09-03 Richard Biener <rguenther@suse.de>
PR tree-optimization/87200
* tree-ssa-sccvn.c (vn_nary_build_or_lookup_1): Valueize a
simplify result.
* gcc.dg/torture/pr87200.c: New testcase.
From-SVN: r264062
Diffstat (limited to 'gcc/tree-ssa-sccvn.c')
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 26d093e..1f00335 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -1759,8 +1759,13 @@ vn_nary_build_or_lookup_1 (gimple_match_op *res_op, bool insert) gimple *new_stmt = NULL; if (res && gimple_simplified_result_is_gimple_val (res_op)) - /* The expression is already available. */ - result = res_op->ops[0]; + { + /* The expression is already available. */ + result = res_op->ops[0]; + /* Valueize it, simplification returns sth in AVAIL only. */ + if (TREE_CODE (result) == SSA_NAME) + result = SSA_VAL (result); + } else { tree val = vn_lookup_simplify_result (res_op); |