diff options
author | Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> | 2011-07-13 17:33:38 +0000 |
---|---|---|
committer | Rainer Orth <ro@gcc.gnu.org> | 2011-07-13 17:33:38 +0000 |
commit | 35d8090d78a398e73813e3c752e0468e69c96750 (patch) | |
tree | 43558081045fc254d40f3c818a030ebac045ba73 /libgcc/config/sparc | |
parent | 19073ebc7ad340bcbcfc9e47715f235a53e0dc73 (diff) | |
download | gcc-35d8090d78a398e73813e3c752e0468e69c96750.zip gcc-35d8090d78a398e73813e3c752e0468e69c96750.tar.gz gcc-35d8090d78a398e73813e3c752e0468e69c96750.tar.bz2 |
crtfastmath.c: Move to ../libgcc/config/alpha.
gcc:
* config/alpha/crtfastmath.c: Move to ../libgcc/config/alpha.
* config/alpha/t-crtfm: Remove.
* config/i386/crtfastmath.c: Move to ../libgcc/config/i386.
* config/i386/t-crtfm: Remove.
* config/ia64/crtfastmath.c: Move to ../libgcc/config/ia64.
* config/mips/crtfastmath.c: Move to ../libgcc/config/mips.
* config/sparc/crtfastmath.c: Move to ../libgcc/config/sparc.
* config/sparc/t-crtfm: Remove.
* config.gcc (alpha*-*-linux*): Remove alpha/t-crtfm from tmake_file.
(alpha*-*-freebsd*): Likewise.
(i[34567]86-*-darwin*): Remove i386/t-crtfm from tmake_file.
(x86_64-*-darwin*): Likewise.
(i[34567]86-*-linux*): Likewise.
(x86_64-*-linux*): Likewise.
(x86_64-*-mingw*): Likewise.
(ia64*-*-elf*): Remove crtfastmath.o from extra_parts.
(ia64*-*-freebsd*): Likewise.
(ia64*-*-linux*): Likewise.
(mips64*-*-linux*): Likewise.
(mips*-*-linux*): Likewise.
(sparc-*-linux*): Remove sparc/t-crtfm from tmake_file.
(sparc64-*-linux*): Likewise.
(sparc64-*-freebsd*): Likewise.
libgcc:
* config/alpha/crtfastmath.c: New file.
* config/i386/crtfastmath.c: New file.
* config/ia64/crtfastmath.c: New file.
* config/mips/crtfastmath.c: New file.
* config/sparc/crtfastmath.c: New file.
* config/t-crtfm (crtfastmath.o): Use $(srcdir) to refer to
crtfastmath.c.
Add -frandom-seed=gcc-crtfastmath.
* config/alpha/t-crtfm: Remove.
* config/i386/t-crtfm: Use $(srcdir) to refer to crtfastmath.c.
* config/ia64/t-ia64 (crtfastmath.o): Remove.
* config.host (alpha*-*-linux*): Replace alpha/t-crtfm by t-crtfm.
(alpha*-dec-osf5.1*): Likewise.
(alpha*-*-freebsd*): Add t-crtfm to tmake_file.
Add crtfastmath.o to extra_parts.
(i[34567]86-*-darwin*): Add i386/t-crtfm to tmake_file.
Add crtfastmath.o to extra_parts.
(x86_64-*-darwin*): Likewise.
(x86_64-*-mingw*): Likewise.
(ia64*-*-elf*): Add t-crtfm to tmake_file.
(ia64*-*-freebsd*): Likewise.
(ia64*-*-linux*): Likewise.
(sparc64-*-freebsd*): Add t-crtfm to tmake_file.
Add crtfastmath.o to extra_parts.
From-SVN: r176241
Diffstat (limited to 'libgcc/config/sparc')
-rw-r--r-- | libgcc/config/sparc/crtfastmath.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/libgcc/config/sparc/crtfastmath.c b/libgcc/config/sparc/crtfastmath.c new file mode 100644 index 0000000..04727ec --- /dev/null +++ b/libgcc/config/sparc/crtfastmath.c @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2001, 2009 Free Software Foundation, Inc. + * Contributed by David S. Miller (davem@redhat.com) + * + * This file 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. + * + * This file 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/>. + */ + +#define FPRS_NS (1 << 22) /* Non-Standard fpu results */ + +static void __attribute__((constructor)) +set_fast_math (void) +{ + unsigned int fsr; + + /* This works for the 64-bit case because, even if 32-bit ld/st of + the fsr register modified the upper 32-bit, the only thing up there + are the 3 other condition codes which are "do not care" at the time + that this runs. */ + + __asm__("st %%fsr, %0" + : "=m" (fsr)); + + fsr |= FPRS_NS; + + __asm__("ld %0, %%fsr" + : : "m" (fsr)); +} |