[Bug tree-optimization/36293] New: ICE or wrong code in vector-strided gap tests

[Bug tree-optimization/36293] New: ICE or wrong code in vector-strided gap tests

[janis at gcc dot gnu dot org]

This patch:

    http://gcc.gnu.org/viewcvs?view=rev&rev=135290

    r135290 | irar | 2008-05-14 12:28:53 +0000 (Wed, 14 May 2008)

causes the following test failures on powerpc64-linux with both -m32 and -m64:

FAIL: gcc.dg/vect/vect-strided-a-u8-i8-gap2.c (internal compiler error)
FAIL: gcc.dg/vect/vect-strided-u8-i8-gap2.c (internal compiler error)
FAIL: gcc.dg/vect/vect-strided-u8-i8-gap4.c execution test

There are additional failures reported for the first two but those are because
the ICE prevents other checks from happening.

The ICE message from last night's build is:

/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/testsuite/gcc.dg/vect/vect-strided-a-u8-i8-gap2.c:
In function 'main1':
/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/testsuite/gcc.dg/vect/vect-strided-a-u8-i8-gap2.c:22:
internal compiler error: in vect_get_vec_def_for_operand, at
tree-vect-transform.c:1924


-- 
           Summary: ICE or wrong code in vector-strided gap tests
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          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=36293

[Bug tree-optimization/36293] ICE or wrong code in vector-strided gap tests

[irar at gcc dot gnu dot org]

------- Comment #1 from irar at gcc dot gnu dot org  2008-05-22 10:40 -------
Subject: Bug 36293

Author: irar
Date: Thu May 22 10:39:44 2008
New Revision: 135755

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135755
Log:
        PR tree-optimization/36293
        * tree-vect-transform.c (vect_transform_strided_load): Don't check
        if the first load must be skipped because of a gap.



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


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36293

[Bug tree-optimization/36293] ICE or wrong code in vector-strided gap tests

[irar at gcc dot gnu dot org]

------- Comment #2 from irar at gcc dot gnu dot org  2008-05-22 10:41 -------
Subject: Bug 36293

Author: irar
Date: Thu May 22 10:41:00 2008
New Revision: 135756

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135756
Log:
        PR tree-optimization/36293
        * tree-vect-transform.c (vect_transform_strided_load): Don't check
        if the first load must be skipped because of a gap.


Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/tree-vect-transform.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36293

[Bug tree-optimization/36293] ICE or wrong code in vector-strided gap tests

[irar at il dot ibm dot com]

------- Comment #3 from irar at il dot ibm dot com  2008-05-22 10:48 -------
Fixed.


-- 

irar at il dot ibm dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36293

[Bug tree-optimization/36293] [4.3/4.4 Regression] ICE or wrong code in vector-strided gap tests

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
      Known to work|                            |4.3.0
            Summary|ICE or wrong code in vector-|[4.3/4.4 Regression] ICE or
                   |strided gap tests           |wrong code in vector-strided
                   |                            |gap tests
   Target Milestone|---                         |4.3.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36293