[PATCH] Add support for the Win32 hook prologue (try 2)

[Paolo Bonzini]

+/* { dg-do run } */
+/* { dg-options "-O2 -fomit-frame-pointer -m32" } */

This is not exactly what I suggested, and there are a few imprecisions 
in the formatting.

If the patch is accepted though I can commit it and fix these.

Paolo