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[Bug debug/51471] [4.7 Regression] gcc.c-torture/execute/20040811-1.c and gcc.c-torture/execute/vla-dealloc-1.c fails at -O3 -g on mips64-linux-gnu
- From: "vries at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 04 Jan 2012 21:43:29 +0000
- Subject: [Bug debug/51471] [4.7 Regression] gcc.c-torture/execute/20040811-1.c and gcc.c-torture/execute/vla-dealloc-1.c fails at -O3 -g on mips64-linux-gnu
- Auto-submitted: auto-generated
- References: <bug-51471-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51471
--- Comment #15 from vries at gcc dot gnu.org 2012-01-04 21:43:29 UTC ---
(In reply to comment #14)
> (In reply to comment #13)
> > AFAIU, the only thing causing problems is frame-related insns being speculated.
>
> Yes this patch seems more correct. I will submit it after a bootstrap/test on
> mips64-linux-gnu.
I still wonder though why Richard Henderson says in PR50283 comment 9: We're
supposed to prevent frame-related insns from appearing in branch delay slots.