[Bug tree-optimization/21054] New: ICE in ssa check for -ftree-vectorize -fprofile-generate

[Bug tree-optimization/21054] New: ICE in ssa check for -ftree-vectorize -fprofile-generate

[janis at gcc dot gnu dot org]

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Current mainline GCC gets an ICE in check_loop_closed_ssa_use building
any of ten benchmark programs from SPEC CPU2000 on powerpc-linux using
the options "-O2 -ftree-vectorize -maltivec -fprofile-generate".  This
minimized test case demonstrates the problem:
                                                                                
static int a[27];
void
foo (void)
{
   int i;
   for (i = 0; i < 27; i++)
      a[i] = 0;
}
                                                                                
elm3b11% /opt/gcc-nightly/mline/bin/gcc -O2 -ftree-vectorize -maltivec
-fprofile-generate -c bug.c
bug.c: In function ‘foo’:
bug.c:4: internal compiler error: in check_loop_closed_ssa_use, at
tree-ssa-loop-manip.c:394
                                                                                
Not that the information is useful, but the test starts failing on
mainline with the merge from tree-cleanup-branch on 2005-04-09, and it
started failing on the branch with a merge from mainline on 2005-04-01.

-- 
           Summary: ICE in ssa check for -ftree-vectorize -fprofile-generate
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: powerpc-linux
  GCC host triplet: powerpc-linux
GCC target triplet: powerpc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21054

[Bug tree-optimization/21054] [4.1 Regression] ICE in ssa check for -ftree-vectorize -fprofile-generate

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-16 02:52 -------
Very related to PR 20947.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |20947
           Keywords|                            |ice-on-valid-code
            Summary|ICE in ssa check for -ftree-|[4.1 Regression] ICE in ssa
                   |vectorize -fprofile-generate|check for -ftree-vectorize -
                   |                            |fprofile-generate
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21054

[Bug tree-optimization/21054] [4.1 Regression] ICE in ssa check for -ftree-vectorize -fprofile-generate

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-17 23:04 -------
This is a dup of bug 20947, I will add this testcase which is further reduced there.

*** This bug has been marked as a duplicate of 20947 ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21054

[Bug tree-optimization/21054] [4.1 Regression] ICE in ssa check for -ftree-vectorize -fprofile-generate

[micis at gmx dot de]

-- 
Bug 21054 depends on bug 20947, which changed state.

Bug 20947 Summary: [4.1 Regression] ICE in check_loop_closed_ssa_use, at tree-ssa-loop-manip.c:394 with -ftree-vectorize
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20947

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21054