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[Bug tree-optimization/83170] [8 Regression] ICE: Segmentation fault - during GIMPLE pass: store-merging
- 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: Sat, 02 Dec 2017 07:59:28 +0000
- Subject: [Bug tree-optimization/83170] [8 Regression] ICE: Segmentation fault - during GIMPLE pass: store-merging
- Auto-submitted: auto-generated
- References: <bug-83170-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83170
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Dec 2 07:58:57 2017
New Revision: 255356
URL: https://gcc.gnu.org/viewcvs?rev=255356&root=gcc&view=rev
Log:
PR tree-optimization/83170
PR tree-optimization/83241
* gimple-ssa-store-merging.c
(imm_store_chain_info::try_coalesce_bswap): Update vuse field from
gimple_vuse (ins_stmt) in case it has changed.
(imm_store_chain_info::output_merged_store): Likewise.
* gcc.dg/store_merging_17.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/store_merging_17.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimple-ssa-store-merging.c
trunk/gcc/testsuite/ChangeLog