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From: "bonzini at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/40741] code size explosion for integer comparison
Date: Wed, 28 Oct 2009 10:18:00 -0000 [thread overview]
Message-ID: <20091028101752.14044.qmail@sourceware.org> (raw)
In-Reply-To: <bug-40741-17659@http.gcc.gnu.org/bugzilla/>
------- Comment #6 from bonzini at gnu dot org 2009-10-28 10:17 -------
Subject: Bug 40741
Author: bonzini
Date: Wed Oct 28 10:17:29 2009
New Revision: 153650
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153650
Log:
2009-10-28 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/40741
* config/arm/arm.c (thumb1_rtx_costs): IOR or XOR with
a small constant is cheap.
* config/arm/arm.md (andsi3, iorsi3): Try to place the result of
force_reg on the LHS.
(xorsi3): Likewise, and split the XOR if the constant is complex
and not in Thumb mode.
2009-10-28 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/40741
* gcc.target/arm/thumb-branch1.c: New.
Added:
trunk/gcc/testsuite/gcc.target/arm/thumb-branch1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/arm/arm.c
trunk/gcc/config/arm/arm.md
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40741
next prev parent reply other threads:[~2009-10-28 10:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-14 8:41 [Bug target/40741] New: " carrot at google dot com
2009-07-14 8:41 ` [Bug target/40741] " carrot at google dot com
2009-07-14 9:23 ` rguenth at gcc dot gnu dot org
2009-07-14 9:27 ` steven at gcc dot gnu dot org
2009-07-14 10:08 ` bonzini at gnu dot org
2009-07-14 10:34 ` bonzini at gnu dot org
2009-07-14 22:42 ` bonzini at gnu dot org
2009-10-28 10:18 ` bonzini at gcc dot gnu dot org [this message]
2009-10-28 10:44 ` bonzini at gnu dot org
2009-10-29 16:53 ` law at gcc dot gnu dot org
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