From: Richard Henderson <rth@redhat.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Richard Guenther <rguenther@suse.de>,
Eric Botcazou <ebotcazou@adacore.com>,
gcc-patches@gcc.gnu.org, richard.sandiford@linaro.org
Subject: Re: [PATCH] Optimize in RTL vector AND { -1, -1, ... }, IOR { -1, -1, ... } and XOR { -1, -1, ... } (take 2)
Date: Mon, 26 Sep 2011 23:11:00 -0000 [thread overview]
Message-ID: <4E80F244.2000506@redhat.com> (raw)
In-Reply-To: <20110926145550.GG2687@tyan-ft48-01.lab.bos.redhat.com>
On 09/26/2011 07:55 AM, Jakub Jelinek wrote:
> * rtl.h (const_tiny_rtx): Change into array of 4 x MAX_MACHINE_MODE
> from 3 x MAX_MACHINE_MODE.
> (CONSTM1_RTX): Define.
> * emit-rtl.c (const_tiny_rtx): Change into array of 4 x MAX_MACHINE_MODE
> from 3 x MAX_MACHINE_MODE.
> (gen_rtx_CONST_VECTOR): Use CONSTM1_RTX if all inner constants are
> CONSTM1_RTX.
> (init_emit_once): Initialize CONSTM1_RTX for MODE_INT and
> MODE_VECTOR_INT modes.
> * simplify-rtx.c (simplify_binary_operation_1) <case IOR, XOR, AND>:
> Optimize if one operand is CONSTM1_RTX.
> * config/i386/i386.c (ix86_expand_sse_movcc): Optimize mask ? -1 : x
> into mask | x.
Ok.
r~
next prev parent reply other threads:[~2011-09-26 21:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-26 9:30 Patch ping Jakub Jelinek
2011-09-26 10:08 ` Richard Sandiford
2011-09-26 15:55 ` [PATCH] Optimize in RTL vector AND { -1, -1, ... }, IOR { -1, -1, ... } and XOR { -1, -1, ... } (take 2) Jakub Jelinek
2011-09-26 23:11 ` Richard Henderson [this message]
2011-10-31 14:32 Henderson, Stuart
2011-11-11 16:41 ` Bernd Schmidt
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