diff mbox

[testsuite/PR33707] Add test case.

Message ID VI1PR0802MB2176D19FED39FAAF4667DAD2E7060@VI1PR0802MB2176.eurprd08.prod.outlook.com
State New
Headers show

Commit Message

Bin Cheng Aug. 3, 2016, 4:36 p.m. UTC 
Hi,
The case has already been fixed by my unsigned improvement for scev/niter, and it can be vectorized successfully.  This patch simply adds a test for it.
Test result checked on x86_64.  Is it OK?

Thanks,
bin

gcc/testsuite/ChangeLog
2016-08-02  Bin Cheng  <bin.cheng@arm.com>

	PR tree-optimization/33707
	* gcc.dg/vect/pr33707.c: New test.

Comments

Jeff Law Aug. 3, 2016, 10:08 p.m. UTC | #1 
On 08/03/2016 10:36 AM, Bin Cheng wrote:
> Hi,
> The case has already been fixed by my unsigned improvement for scev/niter, and it can be vectorized successfully.  This patch simply adds a test for it.
> Test result checked on x86_64.  Is it OK?
>
> Thanks,
> bin
>
> gcc/testsuite/ChangeLog
> 2016-08-02  Bin Cheng  <bin.cheng@arm.com>
>
> 	PR tree-optimization/33707
> 	* gcc.dg/vect/pr33707.c: New test.
OK.
jeff
diff mbox

Patch

diff --git a/gcc/testsuite/gcc.dg/vect/pr33707.c b/gcc/testsuite/gcc.dg/vect/pr33707.c
new file mode 100644
index 0000000..b553142
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/pr33707.c
@@ -0,0 +1,12 @@ 
+/* { dg-do compile } */
+/* { dg-require-effective-target vect_int } */
+
+int
+foo (char *a, unsigned n)
+{
+    int i;
+    a[0] = 0;
+    for (i = 16; i < n; i++)
+      a[i] = a[i-16];
+}
+/* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" } } */