[Bug target/32437] [4.3 Regression] MIPS: FAIL in gcc.dg/cleanup-[8|9|10|11].c

["richard dot guenther at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #10 from richard dot guenther at gmail dot com  2007-06-23 16:12 -------
Subject: Re:  [4.3 Regression] MIPS: FAIL in gcc.dg/cleanup-[8|9|10|11].c

On 6/23/07, Kenneth Zadeck <zadeck@naturalbridge.com> wrote:
> This patch changes dce:deletable_insn_p so that it looks at all of the
> top level
> clauses in a parallel to make it's decision.  It was not keeping insns
> that had a top level USE or UNSPEC if they were inside of parallels.
>
> This should fix pr32437 and perhaps other things.
>
> The patch has only been tested on ppc and x86-64.  It is harmless on
> those platforms.
> It is likely to make a difference on pa-risc and mips where there are
> parallels that contain top level unspecs.
>
> Ok to commit?

This is ok for mainline.

Thanks,
Richard.

>
> 2007-06-23  Kenneth Zadeck <zadeck@naturalbridge.com>
>
>     PR middle-end/32437
>     *dce.c (deletable_insn_p): Add extra parameter and recurse if insn
>     is a PARALLEL.
>     (prescan_insns_for_dce): Add extra parameter.
>
>
>
>


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32437