Patch from https://github.com/crystax/android-toolchain-gcc-6

diff -u -r ../gcc-6.1.0/gcc/config/i386/gnu-user64.h ./gcc/config/i386/gnu-user64.h
--- ../gcc-6.1.0/gcc/config/i386/gnu-user64.h	2016-01-04 09:30:50.000000000 -0500
+++ ./gcc/config/i386/gnu-user64.h	2016-06-19 17:26:43.129238919 -0400
@@ -46,6 +46,11 @@
 #define SPEC_X32 "mx32"
 #endif
 
+#undef ANDROID_TARGET_CC1_SPEC
+#define ANDROID_TARGET_CC1_SPEC \
+	"%{m32:-mssse3 -fno-short-enums}" \
+	"%{!m32:-msse4.2 -mpopcnt}"
+
 #undef ASM_SPEC
 #define ASM_SPEC "%{" SPEC_32 ":--32} \
  %{" SPEC_64 ":--64} \