23 lines
638 B
C
23 lines
638 B
C
/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
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/* { dg-require-effective-target ilp32 } */
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/* { dg-options "-O1 -fprefetch-loop-arrays -march=athlon -fdump-tree-aprefetch-blocks" } */
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int a[10000];
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int foo(unsigned n)
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{
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unsigned i, s = 0;
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for (i = 0; i < n; i++)
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s += a[i];
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return s;
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}
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/* We used to make the probability that the body of the loop (unrolled
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to enable prefetching) is entered 0, which is not correct. */
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/* { dg-final { scan-tree-dump-not "Invalid sum" "aprefetch"} } */
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/* { dg-final { scan-tree-dump-not "SUCC: 7 .100.0%" "aprefetch"} } */
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/* { dg-final { cleanup-tree-dump "aprefetch" } } */
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