[Bug middle-end/46734] [4.5 Regression] ICE in create_tmp_var, at gimplify.c:505

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46734

--- Comment #5 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-12-07 
13:32:37 UTC ---
Simple testcase (to be run with -O -fipa-sra):

struct A
{
  int *p;
  A() {p = (int *) -1;}
  ~A() {if (p && p != (int *) -1) *p = 0;}
};

struct B
{
  A a;
  char data[23];
  B() : a() {data[0] = 0;}
};

extern A ga;
extern int *gi;
extern void *gz;
extern B *gb;

static int * __attribute__ ((noinline)) foo (B *b, void *z)
{
  __builtin_memcpy (gz, z, 28);
  ga = b->a;
  return b->a.p;
}

int *bar (B *b, void *z)
{
  gb = b;
  return foo (b, z);
}