[Bug middle-end/51590] [4.7 Regression] ICE in gsi_for_stmt, at gimple-iterator.c:560

[dimhen at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51590

--- Comment #2 from Dmitry G. Dyachenko <dimhen at gmail dot com> 2011-12-18 
13:13:36 UTC ---
gcc version 4.7.0 20111218 (experimental) [trunk revision 182459] (GCC) 
Fedora 16/x64

$ cat c51590.c 
#include <sys/time.h>

extern void baz(char *);

static
void
bar( struct timeval *sv)
{
    char bt[8];
    int i;

    for(i=0; i < 8; i++)
    bt[i] = sv->tv_sec >> ( ( 7 - i ) * 8 );

    baz(bt);
}

void
foo(const char *s)
{
  struct timeval sp_cur;
  int i;

  for(i=0; *s; s++)
      i++;

  if(i != 1)
      return;

  bar(&sp_cur);
}

$ LANG=C gcc -O3 -Wall -Wextra -c c51590.c
c51590.c: In function 'foo':
c51590.c:19:1: internal compiler error: in gsi_for_stmt, at 
gimple-iterator.c:560