25 lines
760 B
C
25 lines
760 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 "-O2 -fprefetch-loop-arrays -march=athlon -fdump-tree-optimized -fdump-tree-aprefetch --param max-unrolled-insns=1000" } */
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char x[100000];
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void foo(int n)
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{
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int i;
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for (i = 0; i < n; i++)
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x[i] = (char) i;
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}
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/* There should be 64 MEMs in the unrolled loop and one more in the copy of the loop
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for the rest of the iterations. */
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/* { dg-final { scan-tree-dump-times "MEM" 65 "optimized" } } */
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/* There should be no i_a = i_b assignments. */
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/* { dg-final { scan-tree-dump-times "i_.*= i_\[0-9\]*;" 0 "aprefetch" } } */
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/* { dg-final { cleanup-tree-dump "optimized" } } */
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/* { dg-final { cleanup-tree-dump "aprefetch" } } */
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