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-rw-r--r--gcc/testsuite/gcc.dg/graphite/pr26435.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/graphite/pr26435.c b/gcc/testsuite/gcc.dg/graphite/pr26435.c
new file mode 100644
index 000000000..4e5e5f74d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/graphite/pr26435.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-loop-linear" } */
+/* { dg-require-effective-target size32plus } */
+
+int foo(int *p, int n)
+{
+ int i, j, k = 0;
+
+ /* This is a reduction: there is a scalar dependence that cannot be
+ removed by rewriting IVs. This code cannot and should not be
+ transformed into a perfect loop. */
+ for (i = 0; i < 2; ++i, p += n)
+ for (j = 0; j < 2; ++j)
+ k += p[j];
+
+ return k;
+}