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Re: patch to fix PR55122
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Vladimir Makarov <vmakarov at redhat dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Fri, 23 Nov 2012 22:59:55 -0800
- Subject: Re: patch to fix PR55122
- References: <509ADCAE.4060907@redhat.com>
On Wed, Nov 7, 2012 at 2:11 PM, Vladimir Makarov <vmakarov@redhat.com> wrote:
> The following patch fixes
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55122
>
> The problem was in generation of reload pseudo for matching operands with
> uniq value which prevented to assign the same hard register for the reload
> pseudo and the original input pseudo when the choice of hard regs was quite
> small (AD regs).
>
> The patch was successfully bootstrapped and tested on x86/x86-64.
>
> Committed as rev. 193310.
>
> 2012-11-07 Vladimir Makarov <vmakarov@redhat.com>
>
> PR rtl-optimization/55122
> * lra-constraints.c (match_reload): Sync values for dead input
> pseudos.
>
> 2012-11-07 Vladimir Makarov <vmakarov@redhat.com>
>
> PR rtl-optimization/55122
> * gcc.dg/pr55122.c: New test.
>
>
This caused:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55456
--
H.J.