lzcount intrinsics.

[pf3gnuchains/gcc-fork.git] / gcc / config / i386 / abmintrin.h

diff --git a/gcc/config/i386/abmintrin.h b/gcc/config/i386/abmintrin.h
index 317bb98..b85bdb7 100644 (file)
--- a/gcc/config/i386/abmintrin.h
+++ b/gcc/config/i386/abmintrin.h
@@ -32,6 +32,25 @@
 #ifndef _ABMINTRIN_H_INCLUDED
 #define _ABMINTRIN_H_INCLUDED
 
+extern __inline unsigned short __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+__lzcnt16 (unsigned short __X)
+{
+  return __builtin_clzs (__X);
+}
+
+extern __inline unsigned int __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+__lzcnt (unsigned int __X)
+{
+  return __builtin_clz (__X);
+}
+
+#ifdef __x86_64__
+extern __inline unsigned long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+__lzcnt64 (unsigned long __X)
+{
+  return __builtin_clzl (__X);
+}
+#endif
 
 /* Calculate a number of bits set to 1.  */
 extern __inline int __attribute__((__gnu_inline__, __always_inline__, __artificial__))