tcc-65816/test/dg/fwrapv-1.c
2017-06-09 13:52:12 +02:00

29 lines
456 B
C

/* Copyright (C) 2003 Free Software Foundation.
Test that the -fwrapv command line option is accepted and disables
"unsafe" optimizations that rely on undefined arithmetic overflow.
Written by Roger Sayle, 24th March 2003. */
/* { dg-do run } */
/* { dg-options "-O2 -fwrapv" } */
#include <limits.h>
extern void abort ();
int test(int x)
{
return (2*x)/2;
}
main()
{
int x = INT_MAX;
if (test(x) == x)
abort ();
return 0;
}