From 6d43c51ccf7de3d0f41c2e2b382ada07159cf599 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Sat, 6 Oct 2018 14:00:37 +0000
Subject: [PATCH] undo slow dgemm/skylake microoptimization

the compare is more costly than the work
---
 kernel/x86_64/dgemm_kernel_4x8_skylakex.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/kernel/x86_64/dgemm_kernel_4x8_skylakex.c b/kernel/x86_64/dgemm_kernel_4x8_skylakex.c
index 293bd4a99..b5693ea2c 100644
--- a/kernel/x86_64/dgemm_kernel_4x8_skylakex.c
+++ b/kernel/x86_64/dgemm_kernel_4x8_skylakex.c
@@ -647,11 +647,9 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
 #define  SAVE2x2(ALPHA)					\
-	if (ALPHA != 1.0) {				\
-		xmm0 = _mm_set1_pd(ALPHA);		\
-		xmm4 *= xmm0;				\
-		xmm6 *= xmm0;				\
-	}						\
+	xmm0 = _mm_set1_pd(ALPHA);			\
+	xmm4 *= xmm0;					\
+	xmm6 *= xmm0;					\
 							\
 	xmm4 += _mm_loadu_pd(CO1);			\
 	xmm6 += _mm_loadu_pd(CO1 + ldc);		\