[Bug c/25989] New: gomp ICE with -O2 and schedule(guided)

[Bug c/25989] New: gomp ICE with -O2 and schedule(guided)

[perrin at msli dot com]

/home/perrin/gcc_HEAD/INSTALL/110282/bin/gcc -Wall -std=c99 -v --save-temps -O2
 -fopenmp        -m64 -o test_gomp_2 test_gomp_2.c
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: /home/perrin/gcc_HEAD/gcc/configure
--prefix=/home/perrin/gcc_HEAD/INSTALL/110282/ --enable-threads=posix
--enable-languages=c,c++,fortran
Thread model: posix
gcc version 4.2.0 20060126 (experimental)

/home/perrin/gcc_HEAD/INSTALL/110282/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.2.0/cc1
-E -quiet -v -iprefix
/home/perrin/gcc_HEAD/INSTALL/110282/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.2.0/
-D_REENTRANT test_gomp_2.c -m64 -mtune=generic -std=c99 -Wall -fopenmp -O2
-fpch-preprocess -o test_gomp_2.i
ignoring nonexistent directory
"/home/perrin/gcc_HEAD/INSTALL/110282/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.2.0/../../../../x86_64-unknown-linux-gnu/include"
ignoring duplicate directory
"/home/perrin/gcc_HEAD/INSTALL/110282//lib/gcc/x86_64-unknown-linux-gnu/4.2.0/include"
ignoring nonexistent directory
"/home/perrin/gcc_HEAD/INSTALL/110282//lib/gcc/x86_64-unknown-linux-gnu/4.2.0/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:

/home/perrin/gcc_HEAD/INSTALL/110282/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.2.0/include
 /usr/local/include
 /home/perrin/gcc_HEAD/INSTALL/110282//include
 /usr/include
End of search list.

/home/perrin/gcc_HEAD/INSTALL/110282/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.2.0/cc1
-fpreprocessed test_gomp_2.i -quiet -dumpbase test_gomp_2.c -m64 -mtune=generic
-auxbase test_gomp_2 -O2 -Wall -std=c99 -version -fopenmp -o test_gomp_2.s
GNU C version 4.2.0 20060126 (experimental) (x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.2.0 20060126 (experimental).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: bafa485bbf5b021c2e63fce173a125c4
test_gomp_2.c: In function 'main.omp_fn.0':
test_gomp_2.c:10: error: invalid operand to unary operator
.istart0.2D.1817

test_gomp_2.c:10: error: invalid operand to unary operator
.iend0.3D.1818

test_gomp_2.c:10: internal compiler error: verify_stmts failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make: *** [test_gomp] Error 1



int main(void) {


  int ii,jj;
  float a=1.0, b;

#pragma omp parallel for schedule(guided,1) private(jj)
  for ( ii = 1 ; ii <= 9 ; ii++ ) {
    for ( jj = 1 ; jj <= 9 ; jj++ ) {
      a = b;
    }
  }
}


-- 
           Summary: gomp ICE with -O2 and schedule(guided)
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: perrin at msli dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug c/25989] gomp ICE with -O2 and schedule(guided)

[perrin at msli dot com]

------- Comment #1 from perrin at msli dot com  2006-01-27 07:18 -------
Created an attachment (id=10739)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10739&action=view)
code fails when compiled with -O2 -fopenmp


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-01-27 12:50 -------
Confirmed,  This is obvious invalid gimple:
  D.1940 = __builtin_GOMP_loop_guided_next (&.istart0.2, &.iend0.3);
  if (D.1940) goto <L3>; else goto <L6>;

<L6>:;
  return;

<L3>:;
  ii = (int) .istart0.2;
  D.1938 = (int) .iend0.3;


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c                           |middle-end
     Ever Confirmed|0                           |1
           Keywords|                            |openmp
   Last reconfirmed|0000-00-00 00:00:00         |2006-01-27 12:50:51
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[jakub at gcc dot gnu dot org]

-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2006-01-27 12:50:51         |2006-03-13 17:15:39
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2006-03-13 19:36 -------
Subject: Bug 25989

Author: jakub
Date: Mon Mar 13 19:36:19 2006
New Revision: 112023

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=112023
Log:
        PR middle-end/25989
        * omp-low.c (expand_omp_for_generic): Mark istart0
        and iend0 as addressable.

        * gcc.dg/gomp/pr25989.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/gomp/pr25989.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/omp-low.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2006-03-13 21:44 -------
Fixed on the trunk.


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[reichelt at gcc dot gnu dot org]

------- Comment #5 from reichelt at gcc dot gnu dot org  2006-04-17 12:17 -------
The testcase fails again (with a segfault):
FAIL: gcc.dg/gomp/pr25989.c (test for excess errors)
(from http://gcc.gnu.org/ml/gcc-testresults/2006-04/msg00920.html)

This is probably due to your fix from PR26823, Jakub.


-- 

reichelt at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[jakub at gcc dot gnu dot org]

-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2006-
                   |                            |04/msg00658.html
             Status|REOPENED                    |ASSIGNED
   Last reconfirmed|2006-03-13 17:15:39         |2006-04-18 10:59:30
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[amodra at bigpond dot net dot au]

------- Comment #6 from amodra at bigpond dot net dot au  2006-04-20 03:04 -------
Ditto on powerpc-linux, due to NULL for_stmt.

#0  extract_omp_for_data (for_stmt=0x0, fd=0xffa80d78)
    at /src/gcc-current/gcc/omp-low.c:157
#1  0x10106a10 in expand_parallel_call (region=0x10792098, bb=0x40104d20, 
    entry_stmt=0x400f4f90, ws_args=0x40102f00)
    at /src/gcc-current/gcc/omp-low.c:2038
#2  0x1010a4e8 in expand_omp (region=0x10792098)
    at /src/gcc-current/gcc/omp-low.c:2392
#3  0x1010b224 in execute_expand_omp () at /src/gcc-current/gcc/omp-low.c:3332


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[danglin at gcc dot gnu dot org]

------- Comment #7 from danglin at gcc dot gnu dot org  2006-04-20 23:12 -------
Ditto on hppa-unknown-linux-gnu.


-- 

danglin at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |danglin at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2006-04-26 08:21 -------
Subject: Bug 25989

Author: jakub
Date: Wed Apr 26 08:20:57 2006
New Revision: 113268

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113268
Log:
        PR middle-end/25989
        * tree-flow.h (struct omp_region): Add sched_kind.
        * omp-low.c (expand_parallel_call): Use region->inner->sched_kind
        instead of extracting omp for data.
        (expand_omp_for): Save extracted sched_kind.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/omp-low.c
    trunk/gcc/tree-flow.h


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989

[Bug middle-end/25989] gomp ICE with -O2 and schedule(guided)

[jakub at gcc dot gnu dot org]

------- Comment #9 from jakub at gcc dot gnu dot org  2006-04-26 08:28 -------
Fixed in SVN.


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25989