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I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/* floorf(). RISC-V version.
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Copyright (C) 2017-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#define NO_MATH_REDIRECT
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#include <math.h>
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#include <fenv_private.h>
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#include <libm-alias-float.h>
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#include <stdint.h>
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float
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__floorf (float x)
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{
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int flags = riscv_getflags ();
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bool nan = isnan (x);
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float mag = fabsf (x);
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if (nan)
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return x + x;
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if (mag < (1 << __FLT_MANT_DIG__))
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{
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int32_t i;
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float new_x;
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asm volatile ("fcvt.w.s %0, %1, rdn" : "=r" (i) : "f" (x));
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asm volatile ("fcvt.s.w %0, %1, rdn" : "=f" (new_x) : "r" (i));
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/* floor(-0) == -0, and in general we'll always have the same
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sign as our input. */
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x = copysignf (new_x, x);
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riscv_setflags (flags);
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}
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return x;
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}
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libm_alias_float (__floor, floor)
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