Merge pull request #3764 from martin-frbg/issue3757

Fix compilation of Haswell/Zen DYNAMIC_ARCH targets with Apple clang

Author: martin-frbg

cmake/system.cmake

@@ -197,14 +197,14 @@ if (DEFINED TARGET)
   if (${TARGET} STREQUAL SKYLAKEX AND NOT NO_AVX512)
     set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512")
   endif()
-  if (${TARGET} STREQUAL HASWELL AND NOT NO_AVX2)
+  if ((${TARGET} STREQUAL HASWELL OR ${TARGET} STREQUAL ZEN) AND NOT NO_AVX2)
     if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
       execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
       if (${GCC_VERSION} VERSION_GREATER 4.7 OR ${GCC_VERSION} VERSION_EQUAL 4.7)
         set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx2")
       endif()
     elseif (${CMAKE_C_COMPILER_ID} STREQUAL "CLANG")
-      set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx2")
+      set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx2 -mfma")
     endif()
   endif()
   if (DEFINED HAVE_AVX)

kernel/Makefile

@@ -23,7 +23,7 @@ ifeq ($(C_COMPILER), CLANG)
 # Any clang posing as gcc 4.2 should be new enough (3.4 or later)
   GCCVERSIONCHECK := $(GCCVERSIONGT4)$(GCCVERSIONGTEQ4)$(GCCMINORVERSIONGTEQ2)
   ifeq ($(GCCVERSIONCHECK), $(filter $(GCCVERSIONCHECK), 011 110 111))
-   AVX2OPT = -mavx2
+   AVX2OPT = -mavx2 -mfma
   endif
 endif
 ifdef NO_AVX2
@@ -73,6 +73,8 @@ else ifeq ($(TARGET_CORE), SKYLAKEX)
  endif
 else ifeq ($(TARGET_CORE), HASWELL)
  override CFLAGS += -DBUILD_KERNEL -DTABLE_NAME=gotoblas_$(TARGET_CORE) $(AVX2OPT)
+else ifeq ($(TARGET_CORE), ZEN)
+ override CFLAGS += -DBUILD_KERNEL -DTABLE_NAME=gotoblas_$(TARGET_CORE) $(AVX2OPT)
 else ifeq ($(TARGET_CORE), LOONGSON3R4)
  override CFLAGS += -DBUILD_KERNEL -DTABLE_NAME=gotoblas_$(TARGET_CORE) $(MSA_FLAGS)
 else