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[Bug target/13958] Conversion from unsigned to double is painfully slow on P4
- From: "uros at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Mar 2008 20:43:56 -0000
- Subject: [Bug target/13958] Conversion from unsigned to double is painfully slow on P4
- References: <bug-13958-1771@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from uros at gcc dot gnu dot org 2008-03-21 20:43 -------
Subject: Bug 13958
Author: uros
Date: Fri Mar 21 20:43:12 2008
New Revision: 133435
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133435
Log:
PR target/13958
* config/i386/i386.md ("*floatunssi<mode2>_1"): New pattern with
corresponding post-reload splitters.
("floatunssi<mode>2"): Expand to unsigned_float x87 insn pattern
when x87 FP math is selected.
* config/i386/i386-protos.h (ix86_expand_convert_uns_sixf_sse):
New function prototype.
* config/i386/i386.c (ix86_expand_convert_uns_sixf_sse): New
unreachable function to ease macroization of insn patterns.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386-protos.h
trunk/gcc/config/i386/i386.c
trunk/gcc/config/i386/i386.md
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13958