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[Bug regression/32582] Bootstrap with vectorization enabled fails with ICE on PPC
- From: "rakdver at kam dot mff dot cuni dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 Jul 2007 06:33:41 -0000
- Subject: [Bug regression/32582] Bootstrap with vectorization enabled fails with ICE on PPC
- References: <bug-32582-12180@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #16 from rakdver at kam dot mff dot cuni dot cz 2007-07-29 06:33 -------
Subject: Re: Bootstrap with vectorization enabled fails with ICE on PPC
> >>>>> rakdver at kam dot mff dot cuni dot cz writes:
>
> rakdver> Probably the problem is that -maltivec does not
> rakdver> imply -mabi=altivec, or some similar omission.
>
> -maltivec does not imply -mabi=altivec, which is intended.
>
> The Bugzilla PR says the target is powerpc64-linux, which
> implicitly should enable -mabi=altivec. If this is some other target,
> then the BOOT_CFLAGS should include -mabi=altivec.
it's on ppc-linux. Nevertheless, it is suspicious that we allow a
fairly natural combination of flags (-O2 -maltivec -ftree-vectorize)
to cause misscompilation.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32582