[Bug middle-end/50343] New: [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[Bug middle-end/50343] New: [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

             Bug #: 50343
           Summary: [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


On Linux/x86, revision 178728 gave

FAIL: gfortran.dg/graphite/id-22.f  -O  (internal compiler error)
FAIL: gfortran.dg/graphite/id-22.f  -O  (test for excess errors)

Revision 178713 is OK.

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu.org
   Target Milestone|---                         |4.7.0

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-09-09 14:51:02 UTC ---
Revision 178726 is OK.

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2011-09-09 14:53:28 UTC ---
spawn -ignore SIGHUP
/export/gnu/import/svn/gcc-test-intel64corei7/bld/gcc/testsuite/gfortran/../../gfortran
-B/export/gnu/import/svn/gcc-test-intel64corei7/bld/gcc/testsuite/gfortran/../../
-B/export/gnu/import/svn/gcc-test-intel64corei7/bld/x86_64-unknown-linux-gnu/32/libgfortran/
/export/gnu/import/svn/gcc-test-intel64corei7/src-trunk/gcc/testsuite/gfortran.dg/graphite/id-22.f
-O -O3 -ffast-math -S -m32 -o id-22.s^M
/export/gnu/import/svn/gcc-test-intel64corei7/src-trunk/gcc/testsuite/gfortran.dg/graphite/id-22.f:
In function 'main':^M
/export/gnu/import/svn/gcc-test-intel64corei7/src-trunk/gcc/testsuite/gfortran.dg/graphite/id-22.f:10:0:
internal compiler error: tree check: expected ssa_name, have real_cst in
vect_recog_dot_prod_pattern, at tree-vect-patterns.c:261^M
Please submit a full bug report,^M
with preprocessed source if appropriate.^M
See <http://gcc.gnu.org/bugs.html> for instructions.^M
compiler exited with status 1

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2011-09-09 22:05:16 UTC ---
The same error on 252.eon in SPEC CPU 2K:

g++ -c -o ggPlane.o   -DSPEC_CPU2000_LP64 -DHAS_ERRLIST    -I. -DNDEBUG     -O3
-funroll-loops -ffast-math -fwhole-program -flto=jobserver -fuse-linker-plugin 
ggPlane.cc
ggPlane.cc: In member function 'ggPlane::initialize(ggTrain<ggPoint3> const&)':
ggPlane.cc:47:6: internal compiler error: tree check: expected ssa_name, have
real_cst in vect_recog_dot_prod_pattern, at tree-vect-patterns.c:261
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
specmake[3]: *** [ggPlane.o] Error 1

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2011-09-09 22:40:46 UTC ---
It is caused by revision 178728:

http://gcc.gnu.org/ml/gcc-cvs/2011-09/msg00343.html

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-09-10
     Ever Confirmed|0                           |1

--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-09-10 13:53:08 UTC ---
Confirmed on x86_64-apple-darwin10, backtrace is

#0  vect_recog_dot_prod_pattern (stmts=<value optimized out>, type_in=<value
optimized out>, type_out=<value optimized out>)
    at ../../work/gcc/tree-vect-patterns.c:261
#1  0x0000000100961623 in vect_pattern_recog (loop_vinfo=<value optimized out>)
at ../../work/gcc/tree-vect-patterns.c:1295
#2  0x000000010098b997 in vect_analyze_loop (loop=<value optimized out>) at
../../work/gcc/tree-vect-loop.c:1500
#3  0x000000010099bf78 in vectorize_loops () at
../../work/gcc/tree-vectorizer.c:203
#4  0x00000001006f6bec in execute_one_pass (pass=0x100de7360) at
../../work/gcc/passes.c:2063
#5  0x00000001006f6fad in execute_pass_list (pass=0x100de7360) at
../../work/gcc/passes.c:2118
#6  0x00000001006f6fbf in execute_pass_list (pass=0x100de7540) at
../../work/gcc/passes.c:2119
#7  0x00000001006f6fbf in execute_pass_list (pass=0x100de67c0) at
../../work/gcc/passes.c:2119
#8  0x000000010083d848 in tree_rest_of_compilation (fndecl=<value optimized
out>) at ../../work/gcc/tree-optimize.c:420
#9  0x00000001003ff24a in cgraph_expand_function (node=<value optimized out>)
at ../../work/gcc/cgraphunit.c:1797
#10 0x00000001004010da in cgraph_optimize () at
../../work/gcc/cgraphunit.c:1856
#11 0x00000001004017da in cgraph_finalize_compilation_unit () at
../../work/gcc/cgraphunit.c:1310
#12 0x00000001006880ed in write_global_declarations () at
../../work/gcc/langhooks.c:303
#13 0x00000001007b656a in toplev_main (argc=4, argv=0x7fff5fbfd9d0) at
../../work/gcc/toplev.c:564
#14 0x0000000100001004 in start ()

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> 2011-09-10 17:29:45 UTC ---
With SPEC CPU 2006, I got

456.hmmer:

histogram.c: In function 'Lawless416':
histogram.c:1028:1: internal compiler error: tree check: expected ssa_name,
have real_cst in vect_recog_dot_prod_pattern, at tree-vect-patterns.c:261
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
specmake[3]: *** [histogram.o] Error 1

435.gromacs:

princ.c: In function 'calc_xcm':
princ.c:189:6: internal compiler error: tree check: expected ssa_name, have
real_cst in vect_recog_dot_prod_pattern, at tree-vect-patterns.c:261
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
specmake[3]: *** [princ.o] Error 1

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-09-12 05:48:51 UTC ---
Mine.

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

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

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

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-09-12 06:01:36 UTC ---
Fixed.

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-09-12 06:01:19 UTC ---
Author: rguenth
Date: Mon Sep 12 06:01:15 2011
New Revision: 178775

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=178775
Log:
2011-09-12  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/50343
    * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Check
    that the reduction is over an SSA name before checking its
    definition.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vect-patterns.c

[Bug middle-end/50343] [4.7 Regression] FAIL: gfortran.dg/graphite/id-22.f

[Joost.VandeVondele at pci dot uzh.ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343

Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zeccav at gmail dot com

--- Comment #10 from Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> 2011-09-15 13:37:54 UTC ---
*** Bug 50411 has been marked as a duplicate of this bug. ***