Hello.
The patch adds a new test-case for the mentioned PR. Tested on x86_64-linux-gnu
and ppc64le-linux-gnu.
Ready for trunk or should I postpone it for next stage1?
Martin
>From 84335b09fd7626224148be8883edbaa42dcc496e Mon Sep 17 00:00:00 2001
From: marxin <mli...@suse.cz>
Date: Thu, 20 Apr 2017 09:54:02 +0200
Subject: [PATCH] Add test-case (PR tree-optimization/66278).
gcc/testsuite/ChangeLog:
2017-04-20 Martin Liska <mli...@suse.cz>
PR tree-optimization/66278
* gcc.dg/vect/pr66278.c: New test.
---
gcc/testsuite/gcc.dg/vect/pr66278.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/vect/pr66278.c
diff --git a/gcc/testsuite/gcc.dg/vect/pr66278.c b/gcc/testsuite/gcc.dg/vect/pr66278.c
new file mode 100644
index 00000000000..3e0e2ec5e2b
--- /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 } */
--
2.12.2
