29 lines
1.1 KiB
C
29 lines
1.1 KiB
C
/* This tests strength reduction and choice of induction variables. The targets
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for this testcase are quite limited, as with different set of available
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addressing modes, the results may be quite different.
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The testcase comes from PR 29256 (and originally, the stream benchmark). */
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/* { dg-do compile { target { i?86-*-* || { x86_64-*-* || powerpc_hard_double } } } } */
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/* { dg-require-effective-target nonpic } */
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/* { dg-options "-O3 -fdump-tree-optimized" } */
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# define N 2000000
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static double a[N],c[N];
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void tuned_STREAM_Copy()
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{
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int j;
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for (j=0; j<N; j++)
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c[j] = a[j];
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}
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/* Check that the memory references are based on &a and &c, with appropriate
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offsets. Ideally, we would want each of them to appear once in the output.
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However, due to a bug in jump threading, we end up peeling one iteration from
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the loop, which creates an additional occurence. */
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/* { dg-final { scan-tree-dump-times "MEM.(base: &|symbol: )a," 2 "optimized" } } */
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/* { dg-final { scan-tree-dump-times "MEM.(base: &|symbol: )c," 2 "optimized" } } */
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/* { dg-final { cleanup-tree-dump "optimized" } } */
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