| Index: third_party/libcxx/include/support/ibm/support.h
|
| ===================================================================
|
| --- third_party/libcxx/include/support/ibm/support.h (revision 0)
|
| +++ third_party/libcxx/include/support/ibm/support.h (revision 0)
|
| @@ -0,0 +1,54 @@
|
| +// -*- C++ -*-
|
| +//===----------------------- support/ibm/support.h ----------------------===//
|
| +//
|
| +// The LLVM Compiler Infrastructure
|
| +//
|
| +// This file is dual licensed under the MIT and the University of Illinois Open
|
| +// Source Licenses. See LICENSE.TXT for details.
|
| +//
|
| +//===----------------------------------------------------------------------===//
|
| +
|
| +#ifndef _LIBCPP_SUPPORT_IBM_SUPPORT_H
|
| +#define _LIBCPP_SUPPORT_IBM_SUPPORT_H
|
| +
|
| +extern "builtin" int __popcnt4(unsigned int);
|
| +extern "builtin" int __popcnt8(unsigned long long);
|
| +extern "builtin" unsigned int __cnttz4(unsigned int);
|
| +extern "builtin" unsigned int __cnttz8(unsigned long long);
|
| +extern "builtin" unsigned int __cntlz4(unsigned long long);
|
| +extern "builtin" unsigned int __cntlz8(unsigned long long);
|
| +
|
| +// Builtin functions for counting population
|
| +#define __builtin_popcount(x) __popcnt4(x)
|
| +#define __builtin_popcountll(x) __popcnt8(x)
|
| +#if defined(__64BIT__)
|
| +#define __builtin_popcountl(x) __builtin_popcountll(x)
|
| +#else
|
| +#define __builtin_popcountl(x) __builtin_popcount(x)
|
| +#endif
|
| +
|
| +// Builtin functions for counting trailing zeros
|
| +#define __builtin_ctz(x) __cnttz4(x)
|
| +#define __builtin_ctzll(x) __cnttz8(x)
|
| +#if defined(__64BIT__)
|
| +#define __builtin_ctzl(x) __builtin_ctzll(x)
|
| +#else
|
| +#define __builtin_ctzl(x) __builtin_ctz(x)
|
| +#endif
|
| +
|
| +// Builtin functions for counting leading zeros
|
| +#define __builtin_clz(x) __cntlz4(x)
|
| +#define __builtin_clzll(x) __cntlz8(x)
|
| +#if defined(__64BIT__)
|
| +#define __builtin_clzl(x) __builtin_clzll(x)
|
| +#else
|
| +#define __builtin_clzl(x) __builtin_clz(x)
|
| +#endif
|
| +
|
| +#if defined(__64BIT__)
|
| +#define __SIZE_WIDTH__ 64
|
| +#else
|
| +#define __SIZE_WIDTH__ 32
|
| +#endif
|
| +
|
| +#endif // _LIBCPP_SUPPORT_IBM_SUPPORT_H
|
|
|
| Property changes on: third_party/libcxx/include/support/ibm/support.h
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
|
|
|
|