34 lines
862 B
C
34 lines
862 B
C
/* Test that the correct data prefetch instructions are generated for i386
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variants that use SSE prefetch instructions. */
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/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
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/* { dg-require-effective-target ilp32 } */
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extern void exit (int);
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char *msg = "howdy there";
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void foo (char *p)
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{
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__builtin_prefetch (p, 0, 0);
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__builtin_prefetch (p, 0, 1);
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__builtin_prefetch (p, 0, 2);
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__builtin_prefetch (p, 0, 3);
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__builtin_prefetch (p, 1, 0);
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__builtin_prefetch (p, 1, 1);
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__builtin_prefetch (p, 1, 2);
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__builtin_prefetch (p, 1, 3);
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}
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int main ()
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{
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foo (msg);
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exit (0);
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}
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/* { dg-final { scan-assembler "prefetchnta" } } */
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/* { dg-final { scan-assembler "prefetcht0" } } */
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/* { dg-final { scan-assembler "prefetcht1" } } */
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/* { dg-final { scan-assembler "prefetcht2" } } */
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/* { dg-final { scan-assembler-not "prefetchw" } } */
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