[Bug tree-optimization/42285] New: ICE in Graphite's scan_tree_for_params for 416.gamess

[Bug tree-optimization/42285] New: ICE in Graphite's scan_tree_for_params for 416.gamess

[janis at gcc dot gnu dot org]

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GCC trunk gets an internal compiler error when building SPEC CPU2006 test
416.gamess with "-O2 -floop-interchange" on powerpc-linux, as demonstrated by
this minimized testcase:

      SUBROUTINE EFGRDM(NCF,NFRG,G,RTRMS,GM,IOPT,K1)
      IMPLICIT DOUBLE PRECISION (A-H,O-Z)
      DIMENSION G(*),RTRMS(*),GM(*)

      DUM = 0
      DO I=1,NFRG
         DO J=1,3
            IF (IOPT.EQ.0) THEN
               GM(K1)=G(K1)
            END IF
         END DO
         DO J=1,3
            JDX=NCF*9+IOPT*9*NFRG
            DO M=1,3
               DUM=DUM+RTRMS(JDX+M)
            END DO
            GM(K1)=DUM
         END DO
      END DO
      RETURN
      END

elm3b187% /opt/gcc-nightly/trunk/bin/gfortran -c -O2 -floop-interchange bug.f
bug.f: In function ‘efgrdm’:
bug.f:1:0: internal compiler error: in scan_tree_for_params, at
graphite-sese-to-poly.c:815
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

A Graphite-enabled trunk build is broken during the 19-hour range from r150250
to 150300.  The test passes with the build just before that range and fails
with r150301, the first revision that builds after a merge from the Graphite
branch.


-- 
           Summary: ICE in Graphite's scan_tree_for_params for 416.gamess
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis at gcc dot gnu dot org
GCC target triplet: powerpc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42285

[Bug tree-optimization/42285] ICE in Graphite's scan_tree_for_params for 416.gamess

[dominiq at lps dot ens dot fr]

------- Comment #1 from dominiq at lps dot ens dot fr  2009-12-04 21:41 -------
Confirmed on x86_64-apple-darwin10.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42285

[Bug tree-optimization/42285] ICE in Graphite's scan_tree_for_params for 416.gamess

[spop at gcc dot gnu dot org]

-- 

spop at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |spop at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-12-05 02:31:07
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42285

[Bug tree-optimization/42285] ICE in Graphite's scan_tree_for_params for 416.gamess

[spop at gcc dot gnu dot org]

------- Comment #2 from spop at gcc dot gnu dot org  2009-12-09 04:55 -------
Subject: Bug 42285

Author: spop
Date: Wed Dec  9 04:54:54 2009
New Revision: 155100

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155100
Log:
Fix PR42285.

2009-12-08  Sebastian Pop  <sebpop@gmail.com>

        PR middle-end/42285
        * graphite-scop-detection.c (graphite_can_represent_init): Also
        handle more complex MULT_EXPRs containing parameters by recursion
        on the structure.

        * testsuite/gfortran.dg/graphite/pr42285.f90: New.

Added:
    branches/graphite/gcc/testsuite/gfortran.dg/graphite/pr42285.f90
Modified:
    branches/graphite/gcc/ChangeLog.graphite
    branches/graphite/gcc/graphite-scop-detection.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42285

[Bug tree-optimization/42285] ICE in Graphite's scan_tree_for_params for 416.gamess

[spop at gcc dot gnu dot org]

------- Comment #3 from spop at gcc dot gnu dot org  2009-12-09 04:56 -------
Fixed in the Graphite branch, I will commit this to trunk once it passes
regtest on the branch.

Sebastian


-- 

spop at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42285

[Bug tree-optimization/42285] ICE in Graphite's scan_tree_for_params for 416.gamess

[spop at gcc dot gnu dot org]

------- Comment #4 from spop at gcc dot gnu dot org  2009-12-09 15:18 -------
Subject: Bug 42285

Author: spop
Date: Wed Dec  9 15:18:22 2009
New Revision: 155108

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155108
Log:
Fix PR42285.

2009-12-08  Sebastian Pop  <sebpop@gmail.com>

        PR middle-end/42285
        * graphite-scop-detection.c (graphite_can_represent_init): Also
        handle more complex MULT_EXPRs containing parameters by recursion
        on the structure.

        * testsuite/gfortran.dg/graphite/pr42285.f90: New.

Added:
    trunk/gcc/testsuite/gfortran.dg/graphite/pr42285.f90
Modified:
    trunk/gcc/ChangeLog.graphite
    trunk/gcc/graphite-scop-detection.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42285