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[Bug target/79058] [7 Regression] ARM: internal compiler error: in extract_constrain_insn, at recog.c:2213
- From: "vmakarov at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 17 Jan 2017 16:17:56 +0000
- Subject: [Bug target/79058] [7 Regression] ARM: internal compiler error: in extract_constrain_insn, at recog.c:2213
- Auto-submitted: auto-generated
- References: <bug-79058-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79058
--- Comment #26 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
(In reply to Dominik Vogt from comment #24)
> While you're at it ... does it have the same or a similar cause as the Avr
> bug?
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78883
>
> (A HImode quantity got allocated to r31+r32 (r31 is the last hardreg), in
> presence of a paradoxical subreg of memory.)
It might be.
As for the current PR, the problem was in wrong IRA (not LRA) assignment.