[Bug tree-optimization/85191] New: [8 regression] gcc.dg/vect/slp-perm-9.c FAILs

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85191

            Bug ID: 85191
           Summary: [8 regression] gcc.dg/vect/slp-perm-9.c FAILs
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
  Target Milestone: ---
            Target: i?86-*-*, x86_64-*-*, ia64-*-*

Between 20180326 (r258856) and 20180327 (r258886), the gcc.dg/vect/slp-perm-9.c
testcase started to FAIL:

+FAIL: gcc.dg/vect/slp-perm-9.c -flto -ffat-lto-objects  scan-tree-dump-times
vect "permutation requires at least three vectors" 1

gcc.dg/vect/slp-perm-9.c -flto -ffat-lto-objects : pattern found 0 times

+FAIL: gcc.dg/vect/slp-perm-9.c -flto -ffat-lto-objects  scan-tree-dump-times
vect "vectorized 1 loops" 1
+FAIL: gcc.dg/vect/slp-perm-9.c scan-tree-dump-times vect "permutation requires
at least three vectors" 1
+FAIL: gcc.dg/vect/slp-perm-9.c scan-tree-dump-times vect "vectorized 1 loops"
1

I'm seeing it on 32 and 64-bit Solaris/x86, but there are also testresults on
FreeBSD, Linux/x86, and Linux/IA-64.