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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 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/* Helper macros for x86_64 libm functions.
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Copyright (C) 2015-2021 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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#ifndef _X86_64_MATH_ASM_H
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#define _X86_64_MATH_ASM_H 1
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/* Define constants for the minimum value of a floating-point
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type. */
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#define DEFINE_LDBL_MIN \
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.section .rodata.cst16,"aM",@progbits,16; \
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.p2align 4; \
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.type ldbl_min,@object; \
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ldbl_min: \
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.byte 0, 0, 0, 0, 0, 0, 0, 0x80, 0x1, 0; \
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.byte 0, 0, 0, 0, 0, 0; \
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.size ldbl_min, .-ldbl_min;
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/* Force an underflow exception if the given value (nonnegative or
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NaN) is subnormal. The relevant constant for the minimum of the
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type must have been defined, the MO macro must have been defined
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for access to memory operands, and, if PIC, the PIC register must
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have been loaded. */
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#define LDBL_CHECK_FORCE_UFLOW_NONNEG_NAN \
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fldt MO(ldbl_min); \
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fld %st(1); \
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fucomip %st(1), %st(0); \
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fstp %st(0); \
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jnc 6464f; \
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fld %st(0); \
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fmul %st(0); \
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fstp %st(0); \
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6464:
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/* Likewise, but the argument is not a NaN. */
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#define LDBL_CHECK_FORCE_UFLOW_NONNAN \
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fldt MO(ldbl_min); \
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fld %st(1); \
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fabs; \
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fcomip %st(1), %st(0); \
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fstp %st(0); \
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jnc 6464f; \
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fld %st(0); \
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fmul %st(0); \
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fstp %st(0); \
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6464:
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/* Likewise, but the argument is nonnegative and not a NaN. */
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#define LDBL_CHECK_FORCE_UFLOW_NONNEG \
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fldt MO(ldbl_min); \
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fld %st(1); \
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fcomip %st(1), %st(0); \
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fstp %st(0); \
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jnc 6464f; \
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fld %st(0); \
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fmul %st(0); \
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fstp %st(0); \
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6464:
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#endif /* x86_64-math-asm.h. */
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