[Bug rtl-optimization/52803] New: [4.8 Regression] ICE: in ira, at ira.c:3616 with -fno-move-loop-invariants on almost any code

[Bug rtl-optimization/52803] New: [4.8 Regression] ICE: in ira, at ira.c:3616 with -fno-move-loop-invariants on almost any code

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52803

             Bug #: 52803
           Summary: [4.8 Regression] ICE: in ira, at ira.c:3616 with
                    -fno-move-loop-invariants on almost any code
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


===== testcase.c =====
void foo (void) {}
======================

Compiler output:
$ gcc -O -fno-move-loop-invariants testcase.c
testcase.c: In function 'foo':
testcase.c:1:1: internal compiler error: in ira, at ira.c:3616
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r186030 - crash
r185937 - crash
4.7 r185191 - OK

[Bug rtl-optimization/52803] [4.8 Regression] ICE: in ira, at ira.c:3616 with -fno-move-loop-invariants on almost any code

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52803

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2012-04-02
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |
   Target Milestone|---                         |4.8.0
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-02 09:15:50 UTC ---
Might be caused by my changes.  Looking into it.

[Bug rtl-optimization/52803] [4.8 Regression] ICE: in ira, at ira.c:3616 with -fno-move-loop-invariants on almost any code

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52803

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-02 11:59:51 UTC ---
Author: rguenth
Date: Mon Apr  2 11:59:47 2012
New Revision: 186080

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186080
Log:
2012-04-02  Richard Guenther  <rguenther@suse.de>

    PR middle-end/52803
    * loop-init.c (gate_handle_loop2): Destroy loops here if
    we don't enter RTL loop optimizers.

    * gcc.dg/pr52803.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr52803.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/loop-init.c
    trunk/gcc/testsuite/ChangeLog

[Bug rtl-optimization/52803] [4.8 Regression] ICE: in ira, at ira.c:3616 with -fno-move-loop-invariants on almost any code

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52803

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-02 11:59:59 UTC ---
Fixed.