1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ldist-31.c b/gcc/testsuite/gcc.dg/tree-ssa/ldist-31.c
new file mode 100644
index 00000000000..60a9f743b1b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ldist-31.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-loop-distribution -ftree-loop-distribute-patterns -fdump-tree-ldist-details" } */
+
+#define M (256)
+#define N (512)
+int a[M][N], b[M][N], c[M];
+
+void
+foo (void)
+{
+  for (int i = M - 1; i >= 0; --i)
+    {
+      c[i] = 0;
+      for (unsigned j = N; j > 0; --j)
+	a[i][j - 1] = b[i][j - 1];
+    }
+}
+
+/* { dg-final { scan-tree-dump-times "Loop nest . distributed: split to 0 loops and 2 library" 1 "ldist" } } */