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]

[x86, PATCH] More effecient code for short unsigned conversion to float-point.

From: Yuri Rumyantsev <ysrumyan at gmail dot com>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>, Uros Bizjak <ubizjak at gmail dot com>, Igor Zamyatin <izamyatin at gmail dot com>, Areg Melik-Adamyan <areg dot melikadamyan at gmail dot com>
Date: Tue, 6 Aug 2013 18:33:59 +0400
Subject: [x86, PATCH] More effecient code for short unsigned conversion to float-point.

Hi All,

Here is simple fix which produces more optimal code unsigned
char(short) to float(double) with direct rtl-generation.

Bootstrapping and regression testing were successful for x86-64.

Is it OK for trunk?

ChangeLog:

2013-08-06  Yuri Rumyantsev  <ysrumyan@gmail.com>

* config/i386/i386.md (floatunssi<mode>2 expand): Add support
for QI/HImode operand to produce more effecient code for
unsigned char(short) --> float(double) conversion.

Attachment: i386-short-uns-conversion-to-fp.patch
Description: Binary data

Follow-Ups:
- Re: [x86, PATCH] More effecient code for short unsigned conversion to float-point.
  - From: Andreas Schwab
- Re: [x86, PATCH] More effecient code for short unsigned conversion to float-point.
  - From: Richard Henderson

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