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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [prefetch-7.c] - Rev 378
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/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ /* { dg-require-effective-target ilp32 } */ /* { dg-require-effective-target sse2 } */ /* { dg-skip-if "" { i?86-*-* x86_64-*-* } { "-march=*" } { "-march=athlon" } } */ /* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -msse2 -mfpmath=sse --param simultaneous-prefetches=100 --param max-unrolled-insns=1 -fdump-tree-aprefetch-details -fdump-tree-optimized" } */ #define K 1000000 int a[K], b[K]; void test(int *p) { unsigned i; /* Nontemporal store should be used for a. */ for (i = 0; i < K; i++) a[i] = 0; /* Nontemporal store should be used for a, nontemporal prefetch for b. */ for (i = 0; i < K; i++) a[i] = b[i]; /* Nontemporal store should not be used here (only write and read temporal prefetches). */ for (i = 0; i < K - 10000; i++) a[i + 10000] = a[i]; /* Nontemporal store should not be used here (only write and read nontemporal prefetches). */ for (i = 0; i < K - 100000; i++) a[i + 100000] = a[i]; /* Nontemporal store should be used neither for a nor for p, as we do not know whether they alias or not. */ for (i = 0; i < K; i++) { a[i] = 0; *p++ = 1; } /* Nontemporal store should not be used for a, as we do not know whether its value will be reused or not. */ for (i = 0; i < 1000; i++) a[i] = 0; } /* { dg-final { scan-tree-dump-times "Issued prefetch" 5 "aprefetch" } } */ /* { dg-final { scan-tree-dump-times "Issued nontemporal prefetch" 3 "aprefetch" } } */ /* { dg-final { scan-tree-dump-times "nontemporal store" 2 "aprefetch" } } */ /* { dg-final { scan-tree-dump-times "builtin_prefetch" 8 "optimized" } } */ /* { dg-final { scan-tree-dump-times "=\\{nt\\}" 2 "optimized" } } */ /* { dg-final { scan-tree-dump-times "__builtin_ia32_mfence" 2 "optimized" } } */ /* { dg-final { scan-assembler-times "prefetchw" 5 } } */ /* { dg-final { scan-assembler-times "prefetcht" 1 } } */ /* { dg-final { scan-assembler-times "prefetchnta" 2 } } */ /* { dg-final { scan-assembler-times "movnti" 2 } } */ /* { dg-final { scan-assembler-times "mfence" 2 } } */ /* { dg-final { cleanup-tree-dump "aprefetch" } } */ /* { dg-final { cleanup-tree-dump "optimized" } } */
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