[Bug rtl-optimization/46387] [4.6 Regression] ICE in add_stores, at var-tracking.c:5415

["rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46387

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.6.0

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-09 11:35:35 UTC ---
Reduced testcase, no longer requires stack-protector:

typedef signed short gint16;
typedef int gint;
typedef double gdouble;
typedef struct _GdkDrawable GdkPixmap;
typedef struct _GdkDrawable GdkWindow;
typedef enum { GDK_BUTTON1_MASK = 1 << 8 } GdkModifierType;
typedef struct _GdkEventMotion GdkEventMotion;
struct _GdkEventMotion {
    GdkWindow *window;
    gdouble x;
    gdouble y;
    gint16 is_hint;
};
typedef struct _GtkWidget GtkWidget;
typedef struct {
    unsigned char width;
} gn_bmp;
GdkPixmap *drawingPixmap = ((void *)0);
int mouseButtonPushed = 0;
gn_bmp bitmap, oldBitmap;
int activeTool = 0;
gint
DrawingAreaMotionNotifyEvent(GtkWidget * widget, GdkEventMotion * event)
{
  int x, y;
  GdkModifierType state;
  if (!mouseButtonPushed && activeTool != 0)
    return (!(0));
  if (event->is_hint)
    gdk_window_get_pointer(&x, &y, &state);
  else
    {
      x = event->x;
      y = event->y;
    }
  x = x / (5 + 1);
  y = y / (5 + 1);
  if (x < 0)
    x = 0;
  if (x > bitmap.width - 1)
    x = bitmap.width - 1;
  switch (activeTool)
    {
    case 0:
      ToolBrush(widget, x, y, 1);
    }
  return (!(0));
}

./cc1 -quiet xgnokii_logos.3.i -O2 -g 
xgnokii_logos.3.i: In function 'DrawingAreaMotionNotifyEvent':
xgnokii_logos.3.i:48:1: internal compiler error: in add_stores, at
var-tracking.c:5415
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugs.opensuse.org/> for instructions.

reproducible with a cross to ia64-linux.