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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [ssa-pre-19.c] - Blame information for rev 298

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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-pre-stats" } */
 
struct Loc {
    int x[3];
};
 
void bar (struct Loc *);
 
int foo (int i, int j, int k, int b)
{
  struct Loc IND;
  int res;
 
  if (b)
    {
      IND.x[0] = i;
      IND.x[1] = j;
      IND.x[2] = k-1;
    }
  else
    {
      IND.x[0] = i;
      IND.x[1] = j;
      IND.x[2] = k;
    }
 
  /* This should be optimized to i + j + {k, k + 1}.  */
  res = IND.x[0] + IND.x[1] + IND.x[2];
 
  /* This is just to prevent SRA.  */
  bar (&IND);
 
  return res;
}
 
/* All three loads should be eliminated.  */
/* { dg-final { scan-tree-dump "Eliminated: 3" "pre" } } */
/* { dg-final { cleanup-tree-dump "pre" } } */

Line No.	Rev	Author	Line
1	298	jeremybenn	`/* { dg-do compile } */`
2			`/* { dg-options "-O2 -fdump-tree-pre-stats" } */`
3
4			`struct Loc {`
5			`int x[3];`
6			`};`
7
8			`void bar (struct Loc *);`
9
10			`int foo (int i, int j, int k, int b)`
11			`{`
12			`struct Loc IND;`
13			`int res;`
14
15			`if (b)`
16			`{`
17			`IND.x[0] = i;`
18			`IND.x[1] = j;`
19			`IND.x[2] = k-1;`
20			`}`
21			`else`
22			`{`
23			`IND.x[0] = i;`
24			`IND.x[1] = j;`
25			`IND.x[2] = k;`
26			`}`
27
28			`/* This should be optimized to i + j + {k, k + 1}. */`
29			`res = IND.x[0] + IND.x[1] + IND.x[2];`
30
31			`/* This is just to prevent SRA. */`
32			`bar (&IND);`
33
34			`return res;`
35			`}`
36
37			`/* All three loads should be eliminated. */`
38			`/* { dg-final { scan-tree-dump "Eliminated: 3" "pre" } } */`
39			`/* { dg-final { cleanup-tree-dump "pre" } } */`

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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [ssa-pre-19.c] - Blame information for rev 298