public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug middle-end/52614] New: [4.8 Regression] Test failures in gcc.dg/vect: vectorizing unaligned access
@ 2012-03-19 10:39 dominiq at lps dot ens.fr
  2012-03-19 10:54 ` [Bug testsuite/52614] " rguenth at gcc dot gnu.org
                   ` (13 more replies)
  0 siblings, 14 replies; 15+ messages in thread
From: dominiq at lps dot ens.fr @ 2012-03-19 10:39 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52614

             Bug #: 52614
           Summary: [4.8 Regression] Test failures in gcc.dg/vect:
                    vectorizing unaligned access
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dominiq@lps.ens.fr
                CC: Greta.Yorsh@arm.com, iains@gcc.gnu.org,
                    rguenth@gcc.gnu.org
            Target: arm*-*-* ppc*-*-* ia64-*-*


AFAICT pr52603 is not fixed after revision 185474 (see
http://gcc.gnu.org/ml/gcc-testresults/2012-03/msg02065.html ). In addition
similar errors occur on ppc*-*-* and ia64-*-* (see
http://gcc.gnu.org/ml/gcc-testresults/2012-03/msg02068.html ,
http://gcc.gnu.org/ml/gcc-testresults/2012-03/msg02104.html , and
http://gcc.gnu.org/ml/gcc-testresults/2012-03/msg02063.html ).

On powerpc-apple-darwin9, the tests pass with the following patch

--- ../../_gcc_clean/gcc/testsuite/gcc.dg/vect/vect.exp    2011-11-10
13:08:06.000000000 +0100
+++ ../../work/gcc/testsuite/gcc.dg/vect/vect.exp    2012-03-19
10:47:12.000000000 +0100
@@ -40,7 +40,7 @@ if ![check_vect_support_and_set_flags] {
 }

 # These flags are used for all targets.
-lappend DEFAULT_VECTCFLAGS "-ftree-vectorize" "-fno-vect-cost-model"
+lappend DEFAULT_VECTCFLAGS "-ftree-vectorize" "-fno-vect-cost-model"
"-fno-common"

 # Initialize `dg'.
 dg-init

        === gcc Summary for unix/-m64 ===

# of expected passes        3709
# of expected failures        127
# of unsupported tests        37

        === gcc Summary ===

# of expected passes        7443
# of expected failures        241
# of unsupported tests        64

I don't know if this related, but the failures reported in pr52491 disappeared
between revisions 185328 and 185486. Also on x86_64-apple-darwin10, the
polyhedron test gas_dyn.f90 runs 10% faster after revision 185454 than for
revision 185095.


^ permalink raw reply	[flat|nested] 15+ messages in thread
end of thread, other threads:[~2012-04-06 14:11 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-03-19 10:39 [Bug middle-end/52614] New: [4.8 Regression] Test failures in gcc.dg/vect: vectorizing unaligned access dominiq at lps dot ens.fr
2012-03-19 10:54 ` [Bug testsuite/52614] " rguenth at gcc dot gnu.org
2012-03-19 19:03 ` wschmidt at gcc dot gnu.org
2012-03-20 11:30 ` Greta.Yorsh at arm dot com
2012-03-20 15:22 ` dominiq at lps dot ens.fr
2012-03-20 16:08 ` Greta.Yorsh at arm dot com
2012-03-20 16:50 ` ro at gcc dot gnu.org
2012-03-20 17:27 ` pthaugen at gcc dot gnu.org
2012-03-21 13:01 ` dominiq at lps dot ens.fr
2012-03-21 19:40 ` wschmidt at gcc dot gnu.org
2012-03-28 16:49 ` wschmidt at gcc dot gnu.org
2012-04-05 12:14 ` wschmidt at gcc dot gnu.org
2012-04-05 12:18 ` wschmidt at gcc dot gnu.org
2012-04-05 12:47 ` wschmidt at gcc dot gnu.org
2012-04-06 14:11 ` dominiq at lps dot ens.fr

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).