diff options
Diffstat (limited to 'REORG.TODO/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-vis3.S')
-rw-r--r-- | REORG.TODO/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-vis3.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-vis3.S b/REORG.TODO/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-vis3.S new file mode 100644 index 0000000000..26c9d82ede --- /dev/null +++ b/REORG.TODO/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-vis3.S @@ -0,0 +1,51 @@ +/* Round float to int floating-point values, sparc32 v9 vis3 version. + Copyright (C) 2012-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller <davem@davemloft.net>, 2012. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> + + /* VIS instructions are used to facilitate the formation of + easier constants, and the propagation of the sign bit. */ + +#define TWO_TWENTYTHREE 0x4b000000 /* 2**23 */ + +#define ZERO %f10 /* 0.0 */ +#define SIGN_BIT %f12 /* -0.0 */ + +ENTRY (__rintf_vis3) + movwtos %o0, %f1 + sethi %hi(TWO_TWENTYTHREE), %o2 + fzeros ZERO + + fnegs ZERO, SIGN_BIT + + movwtos %o2, %f16 + fabss %f1, %f14 + + fcmps %fcc3, %f14, %f16 + + fmovsuge %fcc3, ZERO, %f16 + fands %f1, SIGN_BIT, SIGN_BIT + + fors %f16, SIGN_BIT, %f16 + fadds %f1, %f16, %f5 + fsubs %f5, %f16, %f0 + fabss %f0, %f0 + retl + fors %f0, SIGN_BIT, %f0 +END (__rintf_vis3) |