[Bug tree-optimization/66719] New: gcc.dg/vect/bb-slp-32.c FAILs

[Bug tree-optimization/66719] New: gcc.dg/vect/bb-slp-32.c FAILs

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66719

            Bug ID: 66719
           Summary: gcc.dg/vect/bb-slp-32.c FAILs
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
                CC: rguenth at gcc dot gnu.org
  Target Milestone: ---
              Host: sparc*-sun-solaris2.*
            Target: sparc*-sun-solaris2.*
             Build: sparc*-sun-solaris2.*

Since 20150624, gcc.dg/vect/bb-slp-32.c FAILs on Solaris/SPARC:

FAIL: gcc.dg/vect/bb-slp-32.c -flto -ffat-lto-objects  scan-tree-dump slp2
"vectorization is not profitable"
FAIL: gcc.dg/vect/bb-slp-32.c scan-tree-dump slp2 "vectorization is not
profitable"

I'm attaching the dump.

  Rainer

[Bug tree-optimization/66719] gcc.dg/vect/bb-slp-32.c FAILs

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66719

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |6.0

[Bug tree-optimization/66719] gcc.dg/vect/bb-slp-32.c FAILs

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66719

--- Comment #1 from Rainer Orth <ro at gcc dot gnu.org> ---
Created attachment 35884
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35884&action=edit
bb-slp-32.c.142t.slp2 dump

[Bug tree-optimization/66719] gcc.dg/vect/bb-slp-32.c FAILs

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66719

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2015-07-02
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/bb-slp-32.c:10:11: note:
=== vect_slp_analyze_data_ref_dependences ===
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/bb-slp-32.c:10:11: note:
not vectorized: unsupported unaligned load.*p_2(D)

so it doesn't consider vectorizing this, the XFAIL was removed with r222849:

-/* { dg-final { scan-tree-dump "vectorization is not profitable" "slp2" {
xfail  { vect_no_align && { ! vect_hw_misalign } } } } } */
+/* { dg-final { scan-tree-dump "vectorization is not profitable" "slp2" } } */

as fix for PR62283 where you reported the testcase now succeeding for
solaris-sparc (building the vector from scalars).

But then I have removed the alignment check in the SLP build machinery which
now no longer makes this path trigger.  So we again need the XFAIL.