diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c new file mode 100644 index 000000000..a05d552ac --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c @@ -0,0 +1,28 @@ +/* { 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 -fdump-tree-aprefetch-details -fdump-tree-optimized" } */ + +#define K 1000000 +int a[K]; + +void test() +{ + unsigned i; + + /* Nontemporal store should be used for a. */ + for (i = 0; i < K; i++) + a[i] = 0; +} + +/* { dg-final { scan-tree-dump-times "a nontemporal store" 1 "aprefetch" } } */ + +/* { dg-final { scan-tree-dump "=\\{nt\\}" "optimized" } } */ +/* { dg-final { scan-tree-dump-times "__builtin_ia32_mfence" 1 "optimized" } } */ + +/* { dg-final { scan-assembler "movnti" } } */ +/* { dg-final { scan-assembler-times "mfence" 1 } } */ + +/* { dg-final { cleanup-tree-dump "aprefetch" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |