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-rw-r--r--gcc/testsuite/gcc.dg/graphite/block-5.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/graphite/block-5.c b/gcc/testsuite/gcc.dg/graphite/block-5.c
new file mode 100644
index 00000000000..e0bd4688d39
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/graphite/block-5.c
@@ -0,0 +1,26 @@
+/* { dg-options "-O2 -floop-block -fdump-tree-graphite-all" } */
+
+#define N 10000
+void foo (int);
+int test ()
+{
+ int a[N][N];
+ int b[N][N];
+ unsigned i, j;
+
+ for (i = 0; i < N; i++)
+ for (j = 0; j < N; j++)
+ a[i][j] = i*j;
+
+ for (j = 1; j < N; j++)
+ for (i = 0; i < N; i++)
+ a[i][j] = a[i][j-1] + b[i][j];
+
+ for (i = 0; i < N; i++)
+ for (j = 0; j < N; j++)
+ foo (a[i][j]);
+}
+
+/* Interchange is legal for loops 0 and 1 of the first two SCoPs */
+/* { dg-final { scan-tree-dump-times "Interchange valid for loops 0 and 1:" 2 "graphite"} } */
+/* { dg-final { cleanup-tree-dump "graphite" } } */