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From: Berger David-MGI2063 <dberger@motorola.com>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: RE: optimization/10362: Optimization with constant shifts and com pares fails on MIPS
Date: Wed, 09 Apr 2003 23:06:00 -0000	[thread overview]
Message-ID: <20030409230600.13554.qmail@sources.redhat.com> (raw)

The following reply was made to PR optimization/10362; it has been noted by GNATS.

From: Berger David-MGI2063 <dberger@motorola.com>
To: "'bangerth@dealii.org'" <bangerth@dealii.org>,
   Berger David-MGI2063
	 <dberger@motorola.com>,
   "'gcc-bugs@gcc.gnu.org'" <gcc-bugs@gcc.gnu.org>,
   "'gcc-prs@gcc.gnu.org'" <gcc-prs@gcc.gnu.org>,
   "'nobody@gcc.gnu.org'"
	 <nobody@gcc.gnu.org>,
   "'gcc-gnats@gcc.gnu.org'" <gcc-gnats@gcc.gnu.org>
Cc:  
Subject: RE: optimization/10362: Optimization with constant shifts and com
	pares fails on MIPS
Date: Wed, 9 Apr 2003 16:01:12 -0700 

 volatile unsigned long i;
 
 void test(void)
 {
   i = (((i & 0xf0) >> 4) >= 14); /* This one generates incorrect code with -O2 */
   i = ((i & 0xf0) >= (14 << 4)); /* This is what the optimizer is trying to do */
 }
 
 
 -----Original Message-----
 From: bangerth@dealii.org [mailto:bangerth@dealii.org] 
 Sent: Wednesday, April 09, 2003 3:45 PM
 To: David Berger; gcc-bugs@gcc.gnu.org; gcc-prs@gcc.gnu.org; nobody@gcc.gnu.org
 Subject: Re: optimization/10362: Optimization with constant shifts and compares fails on MIPS
 
 
 Synopsis: Optimization with constant shifts and compares fails on MIPS
 
 State-Changed-From-To: open->feedback
 State-Changed-By: bangerth
 State-Changed-When: Wed Apr  9 22:44:59 2003
 State-Changed-Why:
     The attachment got lost. Can you please re-send it as a 
     reply to this mail?
     
     Thanks
       Wolfgang
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10362


             reply	other threads:[~2003-04-09 23:06 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-04-09 23:06 Berger David-MGI2063 [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-04-09 23:16 Falk Hueffner
2003-04-09 23:16 Wolfgang Bangerth
2003-04-09 23:06 Berger David-MGI2063

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