[Bug rtl-optimization/59064] New: [4.9 regression] FAIL: gcc.dg/vect/vect-ivdep-1.c (test for bogus messages, line )

[Bug rtl-optimization/59064] New: [4.9 regression] FAIL: gcc.dg/vect/vect-ivdep-1.c (test for bogus messages, line )

[schwab@linux-m68k.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59064

            Bug ID: 59064
           Summary: [4.9 regression] FAIL: gcc.dg/vect/vect-ivdep-1.c
                    (test for bogus messages, line )
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: schwab@linux-m68k.org
            Target: ia64-*-*

$ gcc/xgcc -Bgcc/ ../gcc/testsuite/gcc.dg/vect/vect-ivdep-1.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -ftree-vectorize
-fno-vect-cost-model -fno-common -O2 -fdump-tree-vect-details -O3
-fopt-info-vec-optimized -S -o vect-ivdep-1.s
../gcc/testsuite/gcc.dg/vect/vect-ivdep-1.c:11:3: note: loop vectorized
../gcc/testsuite/gcc.dg/vect/vect-ivdep-1.c:11:3: note: loop versioned for
vectorization to enhance alignment

[Bug rtl-optimization/59064] [4.9 regression] FAIL: gcc.dg/vect/vect-ivdep-1.c (test for bogus messages, line )

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59064

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.9.0

[Bug tree-optimization/59064] [4.9 regression] FAIL: gcc.dg/vect/vect-ivdep-1.c (test for bogus messages, line )

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59064

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-11-19
          Component|rtl-optimization            |tree-optimization
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed via gcc-testresults.

[Bug testsuite/59064] [4.9 regression] FAIL: gcc.dg/vect/vect-ivdep-1.c (test for bogus messages, line )

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59064

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31864
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31864&action=edit
gcc49-pr59064.patch

I'd say this is just a testsuite bug.  While #pragma GCC ivdep or do concurrent
should make it unnecessary to version loops for aliasing, because those
pragmas/constructs imply no backward loop carried dependencies, neither of
these provides any extra info about alignment and so it is perfectly sensible
if the loop needs to be versioned (or peeled) for alignment.

Tobias, what was the reason for the separate dg-bogus lines?

[Bug testsuite/59064] [4.9 regression] FAIL: gcc.dg/vect/vect-ivdep-1.c (test for bogus messages, line )

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59064

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jan 17 14:41:58 2014
New Revision: 206710

URL: http://gcc.gnu.org/viewcvs?rev=206710&root=gcc&view=rev
Log:
    PR testsuite/59064
    * gcc.dg/vect/vect-ivdep-1.c: Replace two dg-bogus lines separately
    testing for " version" and " alias" with one testing for
    " version\[^\n\r]* alias".
    * gcc.dg/vect/vect-ivdep-2.c: Likewise.
    * gfortran.dg/vect/vect-do-concurrent-1.f90: Likewise.
    * g++.dg/vect/pr33426-ivdep.cc: Likewise.
    * g++.dg/vect/pr33426-ivdep-2.cc: Likewise.
    * g++.dg/vect/pr33426-ivdep-3.cc: Likewise.
    * g++.dg/vect/pr33426-ivdep-4.cc: Adjust comments similarly.

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/vect/pr33426-ivdep-2.cc
    trunk/gcc/testsuite/g++.dg/vect/pr33426-ivdep-3.cc
    trunk/gcc/testsuite/g++.dg/vect/pr33426-ivdep-4.cc
    trunk/gcc/testsuite/g++.dg/vect/pr33426-ivdep.cc
    trunk/gcc/testsuite/gcc.dg/vect/vect-ivdep-1.c
    trunk/gcc/testsuite/gcc.dg/vect/vect-ivdep-2.c
    trunk/gcc/testsuite/gfortran.dg/vect/vect-do-concurrent-1.f90

[Bug testsuite/59064] [4.9 regression] FAIL: gcc.dg/vect/vect-ivdep-1.c (test for bogus messages, line )

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59064

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.