[Bug target/81362] New: [8.0 regression] FAIL: gcc.dg/vect/no-vfa-vect-57.c execution test

["schwab at linux-m68k dot org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81362

            Bug ID: 81362
           Summary: [8.0 regression] FAIL: gcc.dg/vect/no-vfa-vect-57.c
                    execution test
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: schwab@linux-m68k.org
                CC: rdapp at linux dot vnet.ibm.com
  Target Milestone: ---
            Target: powerpc64-*-*

This fails on G5.

http://gcc.gnu.org/ml/gcc-testresults/2017-06/msg00297.html

Broken by r248680 (Vector peeling cost model 6/6).

(gdb) bt
#0  0x00003fffb7d3cc00 in __GI_raise (sig=<optimized out>)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00003fffb7d3e8bc in __GI_abort () at abort.c:89
#2  0x0000000010000870 in bar (pa=pa@entry=0x3fffffffe680, 
    pb=pb@entry=0x3fffffffe200, pc=pc@entry=0x3fffffffde00)
    at /daten/gcc/gcc-20170602/gcc/testsuite/gcc.dg/vect/no-vfa-vect-57.c:18
#3  0x0000000010000b20 in main1 (pa=pa@entry=0x3fffffffe680)
    at /daten/gcc/gcc-20170602/gcc/testsuite/gcc.dg/vect/no-vfa-vect-57.c:58
#4  0x0000000010000618 in main ()
    at /daten/gcc/gcc-20170602/gcc/testsuite/gcc.dg/vect/no-vfa-vect-57.c:69