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Re: [PATCH] Another combiner 4 insn issue fix (PR middle-end/46637)
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Jakub Jelinek <jakub at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Thu, 25 Nov 2010 12:15:31 +0100
- Subject: Re: [PATCH] Another combiner 4 insn issue fix (PR middle-end/46637)
- References: <20101124214105.GF29412@tyan-ft48-01.lab.bos.redhat.com>
> 2010-11-24 Jakub Jelinek <jakub@redhat.com>
>
> PR middle-end/46637
> * combine.c (try_combine): When substing i2dest for i2src, pass
> 1 as last argument even if
> i0_feeds_i1_n && i1_feeds_i2_n && i0dest_in_i0src.
>
> * gcc.c-torture/compile/pr46637.c: New test.
OK, but the comment also needs to be adjusted, for example:
later. Likewise if I0 feeds into I2, either directly or indirectly
through I1, and I0DEST is in I0SRC. */
--
Eric Botcazou