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/* { dg-do compile } */
/* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */
 
/* Source: Ian Lance Taylor.  */
 
/* VRP test.  We can not simplify the conditional when not using
   strict overflow semantics.  We don't test this with
   -fstrict-overflow because it turns into an infinite loop.  That is
   OK but it would also be OK to not do that.  */
 
int
foo ()
{
  int i, bits;
  for (i = 1, bits = 1; i > 0; i += i)
    ++bits;
  return bits;
}
 
/* { dg-final { scan-tree-dump "return bits" "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */

Line No.	Rev	Author	Line
1	689	jeremybenn	`/* { dg-do compile } */`
2			`/* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */`
3
4			`/* Source: Ian Lance Taylor. */`
5
6			`/* VRP test. We can not simplify the conditional when not using`
7			`strict overflow semantics. We don't test this with`
8			`-fstrict-overflow because it turns into an infinite loop. That is`
9			`OK but it would also be OK to not do that. */`
10
11			`int`
12			`foo ()`
13			`{`
14			`int i, bits;`
15			`for (i = 1, bits = 1; i > 0; i += i)`
16			`++bits;`
17			`return bits;`
18			`}`
19
20			`/* { dg-final { scan-tree-dump "return bits" "optimized" } } */`
21			`/* { dg-final { cleanup-tree-dump "optimized" } } */`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [no-strict-overflow-6.c] - Blame information for rev 801