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| author | Jakub Jelinek <jakub@redhat.com> | 2016-04-29 00:23:01 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-04-29 00:23:01 +0200 |
| commit | 8b80cc2131a7eb179a75392656b753d51045fb19 (patch) | |
| tree | 8377c737763a3df6594340ecbe12fc8605d2c3f5 /gcc/fold-const.c | |
| parent | 9f405ce1b5bc4befcc4c2ac482e92f1662131659 (diff) | |
| download | gcc-8b80cc2131a7eb179a75392656b753d51045fb19.zip gcc-8b80cc2131a7eb179a75392656b753d51045fb19.tar.gz gcc-8b80cc2131a7eb179a75392656b753d51045fb19.tar.bz2 | |
re PR middle-end/70843 (ICE in add_expr, at tree.c:7913)
PR middle-end/70843
* fold-const.c (operand_equal_p): Don't verify hash value equality
if arg0 == arg1.
* tree.c (inchash::add_expr): Handle STATEMENT_LIST. Ignore BLOCK
and OMP_CLAUSE.
* gcc.dg/pr70843.c: New test.
From-SVN: r235615
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 96d8484..69749a8 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2756,12 +2756,15 @@ operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags) { if (operand_equal_p (arg0, arg1, flags | OEP_NO_HASH_CHECK)) { - inchash::hash hstate0 (0), hstate1 (0); - inchash::add_expr (arg0, hstate0, flags); - inchash::add_expr (arg1, hstate1, flags); - hashval_t h0 = hstate0.end (); - hashval_t h1 = hstate1.end (); - gcc_assert (h0 == h1); + if (arg0 != arg1) + { + inchash::hash hstate0 (0), hstate1 (0); + inchash::add_expr (arg0, hstate0, flags); + inchash::add_expr (arg1, hstate1, flags); + hashval_t h0 = hstate0.end (); + hashval_t h1 = hstate1.end (); + gcc_assert (h0 == h1); + } return 1; } else |