[Bug middle-end/57026] ice: SSA corruption

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57026

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-04-22
          Component|c                           |middle-end
                 CC|                            |jakub at gcc dot gnu.org
     Ever Confirmed|0                           |1
   Target Milestone|---                         |4.9.0

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-04-22 06:55:04 UTC ---
Reduced testcase:
typedef struct __jmp_buf_tag { char buf[1024]; } jmp_buf[1];
extern int setjmp (jmp_buf);
extern int bar (unsigned int *);
extern jmp_buf *baz (void);
struct C { int c1; unsigned int c2, c3, c4; };

void
foo (struct C *x, const int *y, unsigned int *z, unsigned int e, unsigned int
g)
{
  unsigned int d;
  unsigned long f;
  setjmp (*baz ());
  f = d;
  if ((x->c1 || x->c2) && g && (!e || d >= 8))
    d = 16;
  else
    d = 8;
  if ((!x->c3 && !x->c4 || *y == 0) && !e && bar (z))
    *z = f;
}

Guess caused by http://gcc.gnu.org/r198096