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[Bug tree-optimization/79887] [7 Regression] ICE in set_uid_loop_bbs, at tree-vectorizer.c:482
- From: "marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 06 Mar 2017 08:31:09 +0000
- Subject: [Bug tree-optimization/79887] [7 Regression] ICE in set_uid_loop_bbs, at tree-vectorizer.c:482
- Auto-submitted: auto-generated
- References: <bug-79887-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79887
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
A simpler test-case from our test-suite:
$ gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/no-trapping-math-1.c -O3
--param vect-epilogues-nomask=1 -mavx512ifma
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/no-trapping-math-1.c: In
function ‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/no-trapping-math-1.c:5:1:
internal compiler error: in set_uid_loop_bbs, at tree-vectorizer.c:482
foo (float a[32], float b[2][32])
^~~
0xe83956 set_uid_loop_bbs
../../gcc/tree-vectorizer.c:481
0xe83956 vectorize_loops()
../../gcc/tree-vectorizer.c:681