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/* PR optimization/13318 */
/* Origin: <bremner@unb.ca> */
/* Reduced testcase: Wolfgang Bangerth <bangerth@dealii.org> */
 
/* Verify that the big multiplier doesn't cause an integer
   overflow in the loop optimizer.  */
 
/* { dg-do compile } */
/* { dg-options "-O2" } */
 
struct S {
  int key;
  int rnext,rprev;
};
 
void foo(struct S* H)
{
  int i, k;
  for (i=0; i<2; i++){
    struct S* cell=H+k;
    cell->key=i*(0xffffffffUL/2);
    cell->rnext=k+(1-i);
    cell->rprev=k+(1-i);
  }
}

Line No.	Rev	Author	Line
1	298	jeremybenn	`/* PR optimization/13318 */`
2			`/* Origin: <bremner@unb.ca> */`
3			`/* Reduced testcase: Wolfgang Bangerth <bangerth@dealii.org> */`
4
5			`/* Verify that the big multiplier doesn't cause an integer`
6			`overflow in the loop optimizer. */`
7
8			`/* { dg-do compile } */`
9			`/* { dg-options "-O2" } */`
10
11			`struct S {`
12			`int key;`
13			`int rnext,rprev;`
14			`};`
15
16			`void foo(struct S* H)`
17			`{`
18			`int i, k;`
19			`for (i=0; i<2; i++){`
20			`struct S* cell=H+k;`
21			`cell->key=i*(0xffffffffUL/2);`
22			`cell->rnext=k+(1-i);`
23			`cell->rprev=k+(1-i);`
24			`}`
25			`}`

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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [overflow-1.c] - Blame information for rev 301