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authorBen Cheng <bccheng@google.com>2013-03-28 11:14:20 -0700
committerBen Cheng <bccheng@google.com>2013-03-28 12:40:33 -0700
commitaf0c51ac87ab2a87caa03fa108f0d164987a2764 (patch)
tree4b8b470f7c5b69642fdab8d0aa1fbc148d02196b /gcc-4.8/libgcc/soft-fp/trunctfxf2.c
parentd87cae247d39ebf4f5a6bf25c932a14d2fdb9384 (diff)
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[GCC 4.8] Initial check-in of GCC 4.8.0
Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771
Diffstat (limited to 'gcc-4.8/libgcc/soft-fp/trunctfxf2.c')
-rw-r--r--gcc-4.8/libgcc/soft-fp/trunctfxf2.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc-4.8/libgcc/soft-fp/trunctfxf2.c b/gcc-4.8/libgcc/soft-fp/trunctfxf2.c
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+++ b/gcc-4.8/libgcc/soft-fp/trunctfxf2.c
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+/* Software floating-point emulation.
+ Truncate IEEE quad into IEEE extended
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Uros Bizjak (ubizjak@gmail.com).
+
+ 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.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file into
+ combinations with other programs, and to distribute those
+ combinations without any restriction coming from the use of this
+ file. (The Lesser General Public License restrictions do apply in
+ other respects; for example, they cover modification of the file,
+ and distribution when not linked into a combine executable.)
+
+ 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, write to the Free
+ Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "soft-fp.h"
+#include "extended.h"
+#include "quad.h"
+
+XFtype __trunctfxf2(TFtype a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A);
+ FP_DECL_E(R);
+ XFtype r;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_SEMIRAW_Q(A, a);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+ FP_TRUNC(E,Q,4,4,R,A);
+#else
+ FP_TRUNC(E,Q,2,2,R,A);
+#endif
+ FP_PACK_SEMIRAW_E(r, R);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}