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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [prefetch-3.c] - Blame information for rev 749

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/* Prefetching used to prefer nonsensical unroll factor of 5 in this testcase.  */
 
/* { dg-do compile { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
/* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -msse2 -mfpmath=sse -fdump-tree-aprefetch-details" } */
 
#define N 1000000
 
double a[N];
 
double test(void)
{
  unsigned i;
  double sum = 0;
 
  for (i = 0; i < N; i += 2)
    sum += (a[i] * a[i+1]);
 
  return sum;
}
 
/* { dg-final { scan-tree-dump-times "unroll factor 4" 1 "aprefetch" } } */
/* { dg-final { cleanup-tree-dump "aprefetch" } } */

Line No.	Rev	Author	Line
1	689	jeremybenn	`/* Prefetching used to prefer nonsensical unroll factor of 5 in this testcase. */`
2
3			`/* { dg-do compile { target { { i?86-- x86_64-- } && ia32 } } } */`
4			`/* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -msse2 -mfpmath=sse -fdump-tree-aprefetch-details" } */`
5
6			`#define N 1000000`
7
8			`double a[N];`
9
10			`double test(void)`
11			`{`
12			`unsigned i;`
13			`double sum = 0;`
14
15			`for (i = 0; i < N; i += 2)`
16			`sum += (a[i] * a[i+1]);`
17
18			`return sum;`
19			`}`
20
21			`/* { dg-final { scan-tree-dump-times "unroll factor 4" 1 "aprefetch" } } */`
22			`/* { dg-final { cleanup-tree-dump "aprefetch" } } */`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [prefetch-3.c] - Blame information for rev 749