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-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.dg/vect/pr66278.c19
2 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ddee402..909f258 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2017-04-21 Martin Liska <mliska@suse.cz>
+
+ PR tree-optimization/66278
+ * gcc.dg/vect/pr66278.c: New test.
+
2017-04-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/80237
diff --git a/gcc/testsuite/gcc.dg/vect/pr66278.c b/gcc/testsuite/gcc.dg/vect/pr66278.c
new file mode 100644
index 0000000..3e0e2ec
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/pr66278.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+#define N 101
+
+typedef unsigned int __uint32_t;
+
+int main(int argc, char **argv)
+{
+ __uint32_t array[N][N][N];
+
+ const unsigned int next = argc == 3 ? 0 : 1;
+
+ for (unsigned i = next; i < N; i++)
+ array[3][3][i] = array[3][3][i] - 10;
+
+ return array[3][3][argc];
+}
+
+/* { dg-final { scan-tree-dump-times "LOOP VECTORIZED" 1 "vect" } } */
+/* { dg-require-effective-target vect_int } */