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Re: [Patch, PR 57802] Wasted work in set_loop_bounds()

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, fortran at gcc dot gnu dot org
Date: Mon, 29 Jul 2013 13:10:21 -0600
Subject: Re: [Patch, PR 57802] Wasted work in set_loop_bounds()
References: <f68893781a479b20213484fd1bb1b5f8 dot squirrel at webmail dot cs dot wisc dot edu>

On 07/23/2013 03:49 PM, pchang9@cs.wisc.edu wrote:

Hi,

The problem appears in revision 201034 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=57802

Bootstrap and regression-tested on x86_64-linux.

In method "set_loop_bounds()" in gcc/fortran/trans-array.c, the loop
on line 4456 should break immediately after "nonoptional_arr" is set
to "true".

2013-07-23  Chang  <pchang9@cs.wisc.edu>

         * trans-array.c (set_loop_bounds): Exit loop after
         setting nonoptional_arr.

Thanks.  Installed.

jeff

References:
- [Patch, PR 57802] Wasted work in set_loop_bounds()
  - From: pchang9

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