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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [reassoc-2.c] - Blame information for rev 749

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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
 
int f (int a0,int a1,int a2,int a3,int a4)
{
int b0, b1, b2, b3, b4,e;
  /* this can be optimized to four additions... */
  b4 = a4 + a3 + a2 + a1 + a0;
  b3 = a3 + a2 + a1 + a0;
  b2 = a2 + a1 + a0;
  b1 = a1 + a0;
  /* This is actually 0 */
  e = b4 - b3 + b2 - b1 - a4 - a2;
  return e;
}
 
/* We can't reassociate the expressions due to undefined signed overflow.  */
 
/* { dg-final { scan-tree-dump-times "return 0" 1 "optimized" { xfail *-*-* } } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */

Line No.	Rev	Author	Line
1	689	jeremybenn	`/* { dg-do compile } */`
2			`/* { dg-options "-O2 -fdump-tree-optimized" } */`
3
4			`int f (int a0,int a1,int a2,int a3,int a4)`
5			`{`
6			`int b0, b1, b2, b3, b4,e;`
7			`/* this can be optimized to four additions... */`
8			`b4 = a4 + a3 + a2 + a1 + a0;`
9			`b3 = a3 + a2 + a1 + a0;`
10			`b2 = a2 + a1 + a0;`
11			`b1 = a1 + a0;`
12			`/* This is actually 0 */`
13			`e = b4 - b3 + b2 - b1 - a4 - a2;`
14			`return e;`
15			`}`
16
17			`/* We can't reassociate the expressions due to undefined signed overflow. */`
18
19			`/* { dg-final { scan-tree-dump-times "return 0" 1 "optimized" { xfail --* } } } */`
20			`/* { dg-final { cleanup-tree-dump "optimized" } } */`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [reassoc-2.c] - Blame information for rev 749