/* Copyright (C) 2002 Free Software Foundation. Ensure that the composite comparison optimization doesn't misfire and attempt to combine a signed comparison with an unsigned one. Written by Roger Sayle, 3rd June 2002. */ extern void abort (void); int foo (int x, int y) { /* If miscompiled the following may become "x == y". */ return (x<=y) && ((unsigned int)x >= (unsigned int)y); } int main () { if (! foo (-1,0)) abort (); return 0; }