aboutsummaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.dg/tree-ssa/prefetch-4.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/prefetch-4.c')
-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/prefetch-4.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/prefetch-4.c b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-4.c
new file mode 100644
index 00000000000..8a5230eedd3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-4.c
@@ -0,0 +1,18 @@
+/* The loop rolls too little, hence the prefetching would not be useful. */
+
+/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -fdump-tree-final_cleanup" } */
+
+int xxx[20];
+
+void foo (int n)
+{
+ int i;
+
+ for (i = 0; i < n; i++)
+ xxx[i] = i;
+}
+
+/* { dg-final { scan-tree-dump-times "prefetch" 0 "final_cleanup" } } */
+/* { dg-final { cleanup-tree-dump "final_cleanup" } } */