[Bug target/71958] New: x86_64-w64-mingw32, ICE when '-mx32' is used

[i.nixman at autistici dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71958

            Bug ID: 71958
           Summary: x86_64-w64-mingw32, ICE when '-mx32' is used
           Product: gcc
           Version: 6.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: i.nixman at autistici dot org
  Target Milestone: ---

This code:

void
bar(int v)
{
    short w[v];
}

produces the following error if compiled using gcc-6.1.0:
bar.c: In function 'bar':
bar.c:5:8: internal compiler error: in copy_to_mode_reg, at explow.c:601
  short w[v];
        ^

But compiled ok using this versions: 4.8.3, 4.9.2, 5.1.0, 5.2.0, 5.3.0, 5.4.0