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[Bug rtl-optimization/85342] [8 Regression] ICE: SIGSEGV in copyprop_hardreg_forward_1 (regcprop.c:995) with -O2 -mavx512vl
- 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: Wed, 11 Apr 2018 14:32:24 +0000
- Subject: [Bug rtl-optimization/85342] [8 Regression] ICE: SIGSEGV in copyprop_hardreg_forward_1 (regcprop.c:995) with -O2 -mavx512vl
- Auto-submitted: auto-generated
- References: <bug-85342-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85342
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 43911
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43911&action=edit
gcc8-pr85342.patch
Untested fix. After failed apply_change_group, recog_data.insn is NULL and
rest of recog_data is garbage, so there is no need to update it.