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[Bug tree-optimization/69170] [6 Regression] ICE (segfault) in find_uses_to_rename_use
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 11 Jan 2016 16:07:19 +0000
- Subject: [Bug tree-optimization/69170] [6 Regression] ICE (segfault) in find_uses_to_rename_use
- Auto-submitted: auto-generated
- References: <bug-69170-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69170
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Seems during SLP vect_get_constant_vectors is called here with op which is
SSA_NAME set in a pattern sequence (created during
vect_recog_vector_vector_shift_pattern). When the sequences are killed, the
SSA_NAME is put on a freelist, but the uses remain. Richard, can you please
have a look at this?