Mercurial > hg > CbC > CbC_gcc
diff gcc/config/ia64/crtfastmath.c @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/config/ia64/crtfastmath.c Fri Jul 17 14:47:48 2009 +0900 @@ -0,0 +1,34 @@ +/* Copyright (C) 2001, 2005, 2009 Free Software Foundation, Inc. + Contributed by David Mosberger <davidm@hpl.hp.com>. + + This file is part of GCC. + + GCC is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + GCC is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + Under Section 7 of GPL version 3, you are granted additional + permissions described in the GCC Runtime Library Exception, version + 3.1, as published by the Free Software Foundation. + + You should have received a copy of the GNU General Public License and + a copy of the GCC Runtime Library Exception along with this program; + see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + <http://www.gnu.org/licenses/>. */ + +/* We could call fesetenv() here but that would create a confusing + dependency on libm (since that is where fesetenv() gets defined. + To avoid this, just do everything locally. */ +#define FE_NONIEEE_ENV 0x0009a04d0270037f + +static void __attribute__((constructor)) +__ia64_set_fast_math (void) +{ + __asm__ __volatile__ ("mov.m ar.fpsr=%0" : : "r"(FE_NONIEEE_ENV)); +}