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-rw-r--r--gcc/testsuite/gcc.dg/unroll-7.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/unroll-7.c b/gcc/testsuite/gcc.dg/unroll-7.c
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index 0000000000..e76d4faf16
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/unroll-7.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-rtl-loop2_unroll -funroll-loops" } */
+/* { dg-require-effective-target int32plus } */
+
+extern int *a;
+
+int t(void)
+{
+ int i;
+ for (i=0;i<1000000;i++)
+ a[i]++;
+}
+/* { dg-final { scan-rtl-dump "Unrolled loop" "loop2_unroll" } } */
+/* { dg-final { scan-rtl-dump "number of iterations: .const_int 999999" "loop2_unroll" } } */
+/* { dg-final { scan-rtl-dump "upper bound: 999999" "loop2_unroll" } } */
+/* { dg-final { scan-rtl-dump "realistic bound: 999999" "loop2_unroll" } } */
+/* { dg-final { scan-rtl-dump "Considering unrolling loop with constant number of iterations" "loop2_unroll" } } */
+/* { dg-final { scan-rtl-dump-not "Invalid sum" "loop2_unroll" } } */