Merge pull request #2896 from martin-frbg/intrin-double

Add compiler flag for SSE4 where available

Author: martin-frbg

Makefile.x86_64

@@ -16,6 +16,10 @@ ifdef HAVE_SSSE3
 CCOMMON_OPT += -mssse3
 FCOMMON_OPT += -mssse3
 endif
+ifdef HAVE_SSE4_1
+CCOMMON_OPT += -msse4.1
+FCOMMON_OPT += -msse4.1
+endif
 endif
 endif
 

kernel/Makefile

@@ -45,7 +45,7 @@ endif
 
 ifdef TARGET_CORE
 	ifeq ($(TARGET_CORE), $(filter $(TARGET_CORE),PRESCOTT CORE2 PENRYN DUNNINGTON ATOM NANO SANDYBRIDGE HASWELL NEHALEM ZEN BARCELONA BOBCAT BULLDOZER PILEDRIVER EXCAVATOR STEAMROLLER OPTERON_SSE3))
-	override CFLAGS += -msse3 -mssse3
+	override CFLAGS += -msse3 -mssse3 -msse4.1
 endif
 ifeq ($(TARGET_CORE), COOPERLAKE)
  override CFLAGS += -DBUILD_KERNEL -DTABLE_NAME=gotoblas_$(TARGET_CORE)