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Re: [Patch, PR 57782] Wasted work in remove_path()

From: Jeff Law <law at redhat dot com>
To: pchang9 at cs dot wisc dot edu
Cc: gcc-patches at gcc dot gnu dot org
Date: Tue, 23 Jul 2013 09:59:10 -0600
Subject: Re: [Patch, PR 57782] Wasted work in remove_path()
References: <90c847f1e10c6806f7d97efffc17b091 dot squirrel at webmail dot cs dot wisc dot edu>

On 07/22/2013 03:59 PM, pchang9@cs.wisc.edu wrote:

Hi,

The problem appears in revision 200945 in version 4.9.  I attached
a one-line patch that fixes it.  I also reported this problem at
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57782

In method "remove_path()" in cfgloopmanip.c, the loop on line 343
should break immediately after "irred_invalidated" is set to "true".


2013-07-22  Chang  <pchang9@cs.wisc.edu>

         * cfgloopmanip.c (remove_path): Exit loop after
         setting irred_invalidated.

Thanks.  Installed.
jeff

References:
- [Patch, PR 57782] Wasted work in remove_path()
  - From: pchang9

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