diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c b/gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c new file mode 100644 index 00000000000..d911dd8e58b --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c @@ -0,0 +1,22 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-require-effective-target ilp32 } */ +/* { dg-options "-O1 -fprefetch-loop-arrays -march=athlon -fdump-tree-aprefetch-blocks" } */ + +int a[10000]; + +int foo(unsigned n) +{ + unsigned i, s = 0; + + for (i = 0; i < n; i++) + s += a[i]; + + return s; +} + +/* We used to make the probability that the body of the loop (unrolled + to enable prefetching) is entered 0, which is not correct. */ + +/* { dg-final { scan-tree-dump-not "Invalid sum" "aprefetch"} } */ +/* { dg-final { scan-tree-dump-not "SUCC: 7 .100.0%" "aprefetch"} } */ +/* { dg-final { cleanup-tree-dump "aprefetch" } } */ |
