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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [fwrapv-1.c] - Blame information for rev 154

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/* 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;
}
 

Line No.	Rev	Author	Line
1	149	jeremybenn	`/* Copyright (C) 2003 Free Software Foundation.`
2
3			`Test that the -fwrapv command line option is accepted and disables`
4			`"unsafe" optimizations that rely on undefined arithmetic overflow.`
5
6			`Written by Roger Sayle, 24th March 2003. */`
7
8			`/* { dg-do run } */`
9			`/* { dg-options "-O2 -fwrapv" } */`
10
11			`#include <limits.h>`
12
13			`extern void abort ();`
14
15			`int test(int x)`
16			`{`
17			`return (2*x)/2;`
18			`}`
19
20			`main()`
21			`{`
22			`int x = INT_MAX;`
23
24			`if (test(x) == x)`
25			`abort ();`
26			`return 0;`
27			`}`
28

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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [fwrapv-1.c] - Blame information for rev 154