Add intrinsic of MULX in BMI2 header
llvm-svn: 165325
diff --git a/clang/lib/Headers/bmi2intrin.h b/clang/lib/Headers/bmi2intrin.h
index c60b0c4..a05cfad 100644
--- a/clang/lib/Headers/bmi2intrin.h
+++ b/clang/lib/Headers/bmi2intrin.h
@@ -70,6 +70,25 @@
return __builtin_ia32_pext_di(__X, __Y);
}
+static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
+_mulx_u64 (unsigned long long __X, unsigned long long __Y,
+ unsigned long long *__P)
+{
+ unsigned __int128 __res = (unsigned __int128) __X * __Y;
+ *__P = (unsigned long long) (__res >> 64);
+ return (unsigned long long) __res;
+}
+
+#else /* !__x86_64__ */
+
+static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
+_mulx_u32 (unsigned int __X, unsigned int __Y, unsigned int *__P)
+{
+ unsigned long long __res = (unsigned long long) __X * __Y;
+ *__P = (unsigned int) (__res >> 32);
+ return (unsigned int) __res;
+}
+
#endif /* !__x86_64__ */
#endif /* __BMI2INTRIN_H */