[Bug tree-optimization/82485] [8 Regression] ICE in sp_valid_at, at config/i386/i386.c:13232

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82485

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-10-09
                 CC|                            |dansan at gcc dot gnu.org
   Target Milestone|---                         |8.0
     Ever confirmed|0                           |1

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
On a slightly modified testcase this starts already at r251321.
struct S { char s[0x40000000]; } s;

void
foo (struct S *p)
{
  char b[0x07fffffff0000000L];
  *(struct S *)&b[0x07ffffffef000000L] = s;
  *p = *(struct S *)&b[0x07ffffffefffffffL];
}