diff mbox

[3/3] Test 64-byte alignment in memset benchtest

Message ID 1459442075-25158-4-git-send-email-hjl.tools@gmail.com
State Committed
Headers

Commit Message

H.J. Lu March 31, 2016, 4:34 p.m. UTC 
  Add 64-byte alignment tests in memset benchtest for 64-byte vector
registers.

OK for master?

H.J.
--
	* benchtests/bench-memset.c (do_test): Support 64-byte
	alignment.
	(test_main): Test 64-byte alignment.
---
 benchtests/bench-memset.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Siddhesh Poyarekar April 1, 2016, 5:49 a.m. UTC | #1 
On Thu, Mar 31, 2016 at 09:34:35AM -0700, H.J. Lu wrote:
> Add 64-byte alignment tests in memset benchtest for 64-byte vector
> registers.
> 
> OK for master?
> 
> H.J.
> --
> 	* benchtests/bench-memset.c (do_test): Support 64-byte
> 	alignment.
> 	(test_main): Test 64-byte alignment.
> ---
>  benchtests/bench-memset.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/benchtests/bench-memset.c b/benchtests/bench-memset.c
> index 6d3218a..98ec257 100644
> --- a/benchtests/bench-memset.c
> +++ b/benchtests/bench-memset.c
> @@ -134,7 +134,7 @@ do_one_test (impl_t *impl, CHAR *s, int c __attribute ((unused)), size_t n)
>  static void
>  do_test (size_t align, int c, size_t len)
>  {
> -  align &= 7;
> +  align &= 63;
>    if ((align + len) * sizeof (CHAR) > page_size)
>      return;
>  
> @@ -181,6 +181,11 @@ test_main (void)
>        do_test (4, c, 64);
>        do_test (2, c, 25);
>      }
> +  for (i = 33; i <= 256; i += 4)
> +    {
> +      do_test (0, c, 32 * i);
> +      do_test (i, c, 32 * i);
> +    }
>  
>    return ret;
>  }
> -- 
> 2.5.5
> 

OK.

Siddhesh
diff mbox

Patch

diff --git a/benchtests/bench-memset.c b/benchtests/bench-memset.c
index 6d3218a..98ec257 100644
--- a/benchtests/bench-memset.c
+++ b/benchtests/bench-memset.c
@@ -134,7 +134,7 @@  do_one_test (impl_t *impl, CHAR *s, int c __attribute ((unused)), size_t n)
 static void
 do_test (size_t align, int c, size_t len)
 {
-  align &= 7;
+  align &= 63;
   if ((align + len) * sizeof (CHAR) > page_size)
     return;
 
@@ -181,6 +181,11 @@  test_main (void)
       do_test (4, c, 64);
       do_test (2, c, 25);
     }
+  for (i = 33; i <= 256; i += 4)
+    {
+      do_test (0, c, 32 * i);
+      do_test (i, c, 32 * i);
+    }
 
   return ret;
 }