This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
[v3] Use __builtin_fpclassify
- From: Paolo Carlini <paolo dot carlini at oracle dot com>
- To: Gcc Patch List <gcc-patches at gcc dot gnu dot org>
- Cc: libstdc++ <libstdc++ at gcc dot gnu dot org>
- Date: Fri, 23 May 2008 12:05:25 +0200
- Subject: [v3] Use __builtin_fpclassify
Hi,
tested x86_64-linux, committed to mainline.
Paolo.
//////////////////////////
2008-05-23 Paolo Carlini <paolo.carlini@oracle.com>
* include/c_std/cmath (fpclassify): Use __builtin_fpclassify.
* include/c_global/cmath (fpclassify): Likewise.
Index: include/c_std/cmath
===================================================================
--- include/c_std/cmath (revision 135793)
+++ include/c_std/cmath (working copy)
@@ -1,7 +1,7 @@
// -*- C++ -*- C forwarding header.
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-// 2006, 2007
+// 2006, 2007, 2008
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
@@ -462,14 +462,6 @@
// conformance, remove possible C99-injected names from the global
// namespace, and sequester them in the __gnu_cxx extension namespace.
-_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
-
- template<typename _Tp>
- inline int
- __capture_fpclassify(_Tp __f) { return fpclassify(__f); }
-
-_GLIBCXX_END_NAMESPACE
-
// Only undefine the C99 FP macros, if actually captured for namespace movement
#undef fpclassify
#undef isfinite
@@ -492,7 +484,8 @@
fpclassify(_Tp __f)
{
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return ::__gnu_cxx::__capture_fpclassify(__type(__f));
+ return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
+ FP_SUBNORMAL, FP_ZERO, __type(__f));
}
template<typename _Tp>
Index: include/c_global/cmath
===================================================================
--- include/c_global/cmath (revision 135793)
+++ include/c_global/cmath (working copy)
@@ -1,7 +1,7 @@
// -*- C++ -*- C forwarding header.
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-// 2006, 2007
+// 2006, 2007, 2008
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
@@ -480,14 +480,6 @@
// conformance, remove possible C99-injected names from the global
// namespace, and sequester them in the __gnu_cxx extension namespace.
-_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
-
- template<typename _Tp>
- inline int
- __capture_fpclassify(_Tp __f) { return fpclassify(__f); }
-
-_GLIBCXX_END_NAMESPACE
-
// Only undefine the C99 FP macros, if actually captured for namespace movement
#undef fpclassify
#undef isfinite
@@ -510,7 +502,8 @@
fpclassify(_Tp __f)
{
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return ::__gnu_cxx::__capture_fpclassify(__type(__f));
+ return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
+ FP_SUBNORMAL, FP_ZERO, __type(__f));
}
template<typename _Tp>