[Bug target/68577] New: [6 Regression] ICE: in expand_direct_optab_fn, at internal-fn.c:2171

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68577

            Bug ID: 68577
           Summary: [6 Regression] ICE: in expand_direct_optab_fn, at
                    internal-fn.c:2171
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: rsandifo at gcc dot gnu.org
  Target Milestone: ---
              Host: powerpc64le-unknown-linux-gnu
            Target: powerpc64le-unknown-linux-gnu

trippels@gcc2-power8 posix % cat sched_cpucount.i
int a, b;
void __sched_cpucount() {
  while (b) {
    long l = b++;
    a += __builtin_popcountl(l);
  }
}

trippels@gcc2-power8 posix % gcc -c -O3 sched_cpucount.i
sched_cpucount.i: In function ‘__sched_cpucount’:
sched_cpucount.i:5:10: internal compiler error: in expand_direct_optab_fn, at
internal-fn.c:2171
     a += __builtin_popcountl(l);
          ^~~~~~~~~~~~~~~~~~~~~~

0x105813d7 expand_direct_optab_fn
        ../../gcc/gcc/internal-fn.c:2171
0x1058205f expand_internal_call
        ../../gcc/gcc/internal-fn.c:2314
0x1058205f expand_internal_call(gcall*)
        ../../gcc/gcc/internal-fn.c:2322
0x10306a17 expand_call_stmt
        ../../gcc/gcc/cfgexpand.c:2550
0x10306a17 expand_gimple_stmt_1
        ../../gcc/gcc/cfgexpand.c:3525
0x10306a17 expand_gimple_stmt
        ../../gcc/gcc/cfgexpand.c:3688
0x10309d93 expand_gimple_basic_block
        ../../gcc/gcc/cfgexpand.c:5694
0x10310327 execute
        ../../gcc/gcc/cfgexpand.c:6309