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From: Steven Bosscher <s.bosscher@student.tudelft.nl>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: Re: optimization/10125: [3.2/3.3/3.4 regression] Infinite loop caused by -O2
Date: Sat, 22 Mar 2003 09:56:00 -0000	[thread overview]
Message-ID: <20030322095601.892.qmail@sources.redhat.com> (raw)

The following reply was made to PR optimization/10125; it has been noted by GNATS.

From: Steven Bosscher <s.bosscher@student.tudelft.nl>
To: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, mast@lysator.liu.se,
	nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org
Cc:  
Subject: Re: optimization/10125: [3.2/3.3/3.4 regression] Infinite loop caused
 by -O2
Date: Sat, 22 Mar 2003 10:54:31 +0100

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10125
 
 The loop does terminate if I compile with "-O2 -fno-strict-aliasing" on
 i586-pc-linux-gnu.  The only differences in the .00.rtl dumps are changes
 like this (- = -O2, + = -O2 -fno-strict-aliasing):
 
  (insn 27 26 28 (nil) (set (reg/f:SI 66)
 -        (mem:SI (reg/v/f:SI 63) [6 S4 A32])) -1 (nil)
 +        (mem:SI (reg/v/f:SI 63) [0 S4 A32])) -1 (nil)
      (nil))
 
 Greetz
 Steven
 
 


             reply	other threads:[~2003-03-22  9:56 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-22  9:56 Steven Bosscher [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-03-23 19:56 Richard Henderson
2003-03-23 18:36 Glen Nakamura
2003-03-23  2:57 rth
2003-03-22  4:57 bangerth

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