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From: "roger at eyesopen dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/25703] [4.2 Regression] ACATS cxa4024 failure
Date: Wed, 25 Jan 2006 19:53:00 -0000	[thread overview]
Message-ID: <20060125195247.8531.qmail@sourceware.org> (raw)
In-Reply-To: <bug-25703-7210@http.gcc.gnu.org/bugzilla/>



------- Comment #11 from roger at eyesopen dot com  2006-01-25 19:52 -------
Created an attachment (id=10729)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10729&action=view)
patch v2

Here's a revised version of the patch that also handles the STRICT_LOW_PART
case.
My apologies once again for the inconvenience.  In the previous version of the
patch I'd mistakenly assumed that STRICT_LOW_PART was some indication that the
SUBREG only affected the "low_part".  Investigating Jan's testcase with
-mtune=i486, I now understand it really means STRICT_SUB_PART, and actually
behaves identically to SUBREG in this optimization, as we preserve all of the
unaffected bits anyway!


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25703


  parent reply	other threads:[~2006-01-25 19:53 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-06 22:12 [Bug ada/25703] New: ACATS FAIL cxa4024 Ada.Strings.Maps on x86-linux laurent at guerby dot net
2006-01-24 12:25 ` [Bug ada/25703] [4.2 Regression] ACATS cxa4024 failure ebotcazou at gcc dot gnu dot org
2006-01-24 13:17 ` ebotcazou at gcc dot gnu dot org
2006-01-24 18:44 ` ebotcazou at gcc dot gnu dot org
2006-01-24 21:37 ` [Bug rtl-optimization/25703] " ebotcazou at gcc dot gnu dot org
2006-01-25  1:05 ` roger at eyesopen dot com
2006-01-25 13:52 ` ebotcazou at gcc dot gnu dot org
2006-01-25 18:19 ` hjl at lucon dot org
2006-01-25 18:27 ` ebotcazou at gcc dot gnu dot org
2006-01-25 18:41 ` hjl at lucon dot org
2006-01-25 18:59 ` ebotcazou at gcc dot gnu dot org
2006-01-25 19:53 ` roger at eyesopen dot com [this message]
2006-01-25 20:15 ` ebotcazou at gcc dot gnu dot org
2006-01-25 20:15 ` hjl at lucon dot org
2006-01-25 20:47 ` hjl at lucon dot org
2006-01-25 20:54 ` ebotcazou at gcc dot gnu dot org
2006-01-26  2:48 ` sayle at gcc dot gnu dot org
2006-01-26  7:04 ` ebotcazou at gcc dot gnu dot org

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