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[Bug middle-end/32370] [4.3 Regression] Segfault after rejecting bogus assembler
- From: "sje at cup dot hp dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Jun 2007 17:13:00 -0000
- Subject: [Bug middle-end/32370] [4.3 Regression] Segfault after rejecting bogus assembler
- References: <bug-32370-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from sje at cup dot hp dot com 2007-06-21 17:13 -------
With optimization, it looks like we die because df_insn_change_bb can handle
insn_info being NULL but it can't handle insn_info->defs (or uses or eq_uses)
being NULL and that is what is happening with -O2. When no optimization is
being done then the failure looks different. I believe this is due to the
dataflow merge.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32370