diff --git a/config/toolchain-simd.m4 b/config/toolchain-simd.m4
index d8197157f..8d008c3bd 100644
--- a/config/toolchain-simd.m4
+++ b/config/toolchain-simd.m4
@@ -5,22 +5,13 @@ dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_TOOLCHAIN_SIMD], [
 	case "$host_cpu" in
 		amd64 | x86_64 | x86 | i686)
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE2
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE3
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSSE3
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE4_1
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE4_2
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX2
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512F
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512CD
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512DQ
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512BW
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512IFMA
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512VBMI
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512PF
-			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512ER
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512VL
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AES
 			ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_PCLMULQDQ
@@ -35,26 +26,6 @@ AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_TOOLCHAIN_SIMD], [
 	esac
 ])
 
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE], [
-	AC_MSG_CHECKING([whether host toolchain supports SSE])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([[
-		int main()
-		{
-			__asm__ __volatile__("xorps %xmm0, %xmm1");
-			return (0);
-		}
-	]])], [
-		AC_DEFINE([HAVE_SSE], 1, [Define if host toolchain supports SSE])
-		AC_MSG_RESULT([yes])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
 dnl #
 dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE2
 dnl #
@@ -75,27 +46,6 @@ AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE2], [
 	])
 ])
 
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE3
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE3], [
-	AC_MSG_CHECKING([whether host toolchain supports SSE3])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([[
-		int main()
-		{
-			char v[16];
-			__asm__ __volatile__("lddqu %0,%%xmm0" :: "m"(v[0]));
-			return (0);
-		}
-	]])], [
-		AC_DEFINE([HAVE_SSE3], 1, [Define if host toolchain supports SSE3])
-		AC_MSG_RESULT([yes])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
 dnl #
 dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSSE3
 dnl #
@@ -136,26 +86,6 @@ AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE4_1], [
 	])
 ])
 
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE4_2
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_SSE4_2], [
-	AC_MSG_CHECKING([whether host toolchain supports SSE4.2])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([[
-		int main()
-		{
-			__asm__ __volatile__("pcmpgtq %xmm0, %xmm1");
-			return (0);
-		}
-	]])], [
-		AC_DEFINE([HAVE_SSE4_2], 1, [Define if host toolchain supports SSE4.2])
-		AC_MSG_RESULT([yes])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
 dnl #
 dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX
 dnl #
@@ -219,48 +149,6 @@ AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512F], [
 	])
 ])
 
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512CD
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512CD], [
-	AC_MSG_CHECKING([whether host toolchain supports AVX512CD])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([
-	[
-		int main()
-		{
-			__asm__ __volatile__("vplzcntd %zmm0,%zmm1");
-			return (0);
-		}
-	]])], [
-		AC_MSG_RESULT([yes])
-		AC_DEFINE([HAVE_AVX512CD], 1, [Define if host toolchain supports AVX512CD])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512DQ
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512DQ], [
-	AC_MSG_CHECKING([whether host toolchain supports AVX512DQ])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([
-	[
-		int main()
-		{
-			__asm__ __volatile__("vandpd %zmm0,%zmm1,%zmm2");
-			return (0);
-		}
-	]])], [
-		AC_MSG_RESULT([yes])
-		AC_DEFINE([HAVE_AVX512DQ], 1, [Define if host toolchain supports AVX512DQ])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
 dnl #
 dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512BW
 dnl #
@@ -282,90 +170,6 @@ AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512BW], [
 	])
 ])
 
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512IFMA
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512IFMA], [
-	AC_MSG_CHECKING([whether host toolchain supports AVX512IFMA])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([
-	[
-		int main()
-		{
-			__asm__ __volatile__("vpmadd52luq %zmm0,%zmm1,%zmm2");
-			return (0);
-		}
-	]])], [
-		AC_MSG_RESULT([yes])
-		AC_DEFINE([HAVE_AVX512IFMA], 1, [Define if host toolchain supports AVX512IFMA])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512VBMI
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512VBMI], [
-	AC_MSG_CHECKING([whether host toolchain supports AVX512VBMI])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([
-	[
-		int main()
-		{
-			__asm__ __volatile__("vpermb %zmm0,%zmm1,%zmm2");
-			return (0);
-		}
-	]])], [
-		AC_MSG_RESULT([yes])
-		AC_DEFINE([HAVE_AVX512VBMI], 1, [Define if host toolchain supports AVX512VBMI])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512PF
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512PF], [
-	AC_MSG_CHECKING([whether host toolchain supports AVX512PF])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([
-	[
-		int main()
-		{
-			__asm__ __volatile__("vgatherpf0dps (%rsi,%zmm0,4){%k1}");
-			return (0);
-		}
-	]])], [
-		AC_MSG_RESULT([yes])
-		AC_DEFINE([HAVE_AVX512PF], 1, [Define if host toolchain supports AVX512PF])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
-dnl #
-dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512ER
-dnl #
-AC_DEFUN([ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512ER], [
-	AC_MSG_CHECKING([whether host toolchain supports AVX512ER])
-
-	AC_LINK_IFELSE([AC_LANG_SOURCE([
-	[
-		int main()
-		{
-			__asm__ __volatile__("vexp2pd %zmm0,%zmm1");
-			return (0);
-		}
-	]])], [
-		AC_MSG_RESULT([yes])
-		AC_DEFINE([HAVE_AVX512ER], 1, [Define if host toolchain supports AVX512ER])
-	], [
-		AC_MSG_RESULT([no])
-	])
-])
-
 dnl #
 dnl # ZFS_AC_CONFIG_TOOLCHAIN_CAN_BUILD_AVX512VL
 dnl #
diff --git a/module/Makefile.bsd b/module/Makefile.bsd
index 7a1bef646..825586451 100644
--- a/module/Makefile.bsd
+++ b/module/Makefile.bsd
@@ -46,7 +46,7 @@ CFLAGS+= -D__KERNEL__ -DFREEBSD_NAMECACHE -DBUILDING_ZFS -D__BSD_VISIBLE=1 \
 	-D_SYS_VMEM_H_ -DKDTRACE_HOOKS -DCOMPAT_FREEBSD11
 
 .if ${MACHINE_ARCH} == "amd64"
-CFLAGS+= -D__x86_64 -DHAVE_SSE2 -DHAVE_SSSE3 -DHAVE_SSE4_1 -DHAVE_SSE4_2 \
+CFLAGS+= -D__x86_64 -DHAVE_SSE2 -DHAVE_SSSE3 -DHAVE_SSE4_1 \
 	-DHAVE_AVX -DHAVE_AVX2 -DHAVE_AVX512F -DHAVE_AVX512VL -DHAVE_AVX512BW
 .endif