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 |