Add sgemm_direct targets

kernel/Makefile.L3

@@ -9,6 +9,10 @@ ifeq ($(ARCH), x86_64)
 USE_GEMM3M = 1
 endif
 
+ifeq ($(ARCH), x86_64)
+USE_DIRECT_SGEMM = 1
+endif
+
 ifeq ($(ARCH), ia64)
 USE_GEMM3M = 1
 endif
@@ -65,6 +69,13 @@ ifeq ($(CORE), Z14)
 USE_TRMM = 1
 endif
 
+ifdef USE_DIRECT_SGEMM
+ifndef SGEMMDIRECTKERNEL
+SGEMMDIRECTKERNEL = sgemm_direct_skylakex.c
+SGEMMDIRECTPERFORMANT = sgemm_direct_performant.c
+endif
+endif
+
 ifeq ($(BUILD_HALF), 1)
 ifndef SHGEMMKERNEL
 SHGEMM_BETA = ../generic/gemm_beta.c
@@ -90,6 +101,12 @@ SKERNELOBJS	+= \
 	$(SGEMMINCOPYOBJ) $(SGEMMITCOPYOBJ) \
 	$(SGEMMONCOPYOBJ) $(SGEMMOTCOPYOBJ)
 
+ifdef USE_DIRECT_SGEMM
+SKERNELOBJS += \
+	sgemm_direct$(TSUFFIX).$(SUFFIX) \
+	sgemm_direct_performant$(TSUFFIX).$(SUFFIX) 
+endif
+
 DKERNELOBJS	+= \
 	dgemm_kernel$(TSUFFIX).$(SUFFIX) \
 	$(DGEMMINCOPYOBJ) $(DGEMMITCOPYOBJ) \
@@ -668,6 +685,13 @@ else
 	$(CC) $(CFLAGS) -c -UDOUBLE -UCOMPLEX $< -o $@
 endif
 
+ifdef USE_DIRECT_SGEMM
+$(KDIR)sgemm_direct_performant$(TSUFFIX).$(SUFFIX) : $(KERNELDIR)/$(SGEMMDIRECTPERFORMANT)
+	$(CC) $(CFLAGS) -c -UDOUBLE -UCOMPLEX $< -o $@
+$(KDIR)sgemm_direct$(TSUFFIX).$(SUFFIX) : $(KERNELDIR)/$(SGEMMDIRECTKERNEL)
+	$(CC) $(CFLAGS) -c -UDOUBLE -UCOMPLEX $< -o $@
+endif
+
 ifeq ($(BUILD_HALF), 1)
 
 $(KDIR)shgemm_kernel$(TSUFFIX).$(SUFFIX) : $(KERNELDIR)/$(SHGEMMKERNEL) $(SHGEMMDEPEND)