This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [4.0 PATCH] Tweak *truncsfdf_fast_i387 pattern in i386.md (Take 2)

From: Richard Henderson <rth at redhat dot com>
To: Roger Sayle <roger at eyesopen dot com>
Cc: Uros Bizjak <uros at kss-loka dot si>, gcc-patches at gcc dot gnu dot org
Date: Mon, 4 Apr 2005 14:43:03 -0700
Subject: Re: [4.0 PATCH] Tweak *truncsfdf_fast_i387 pattern in i386.md (Take 2)
References: <4250E076.5060204@kss-loka.si> <Pine.LNX.4.44.0504041524480.7675-100000@www.eyesopen.com>

On Mon, Apr 04, 2005 at 03:34:01PM -0600, Roger Sayle wrote:
> 	* config/i386/i386.md (*truncdfsf_fast_i387): Enable pattern when
> 	writing to memory, even when !flag_unsafe_math_optimizations.

No.  The constraints allow reload to screw up.


r~

Follow-Ups:
- Re: [4.0 PATCH] Tweak *truncsfdf_fast_i387 pattern in i386.md (Take2)
  - From: Roger Sayle

References:
- Re: [PATCH] New *truncsfdf2_i387_1 pattern for i386.md
  - From: Uros Bizjak
- [4.0 PATCH] Tweak *truncsfdf_fast_i387 pattern in i386.md (Take 2)
  - From: Roger Sayle

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]