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libgcc.texi: Update text to match implementation in libgcc/libgcc2.c

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* doc/libgcc.texi: Update text to match implementation in
	libgcc/libgcc2.c

From-SVN: r218559
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Kito Cheng 2014-12-10 05:43:53 +00:00 committed by Chung-Ju Wu
parent 63f5d5b818
commit 5d56a5854f
2 changed files with 19 additions and 14 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-12-10 Kito Cheng <kito@0xlab.org>
* doc/libgcc.texi: Update text to match implementation in
libgcc/libgcc2.c
2014-12-09 Trevor Saunders <tsaunders@mozilla.com>
* plugin.c, plugin.def, ggc.h, ggc-common.c, gengtype.h, gengtype.c,

28
gcc/doc/libgcc.texi
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@ -177,39 +177,39 @@ that is @code{@var{a} - @var{b}}.
@subsection Bit operations
@deftypefn {Runtime Function} int __clzsi2 (int @var{a})
@deftypefnx {Runtime Function} int __clzdi2 (long @var{a})
@deftypefnx {Runtime Function} int __clzti2 (long long @var{a})
@deftypefn {Runtime Function} int __clzsi2 (unsigned int @var{a})
@deftypefnx {Runtime Function} int __clzdi2 (unsigned long @var{a})
@deftypefnx {Runtime Function} int __clzti2 (unsigned long long @var{a})
These functions return the number of leading 0-bits in @var{a}, starting
at the most significant bit position. If @var{a} is zero, the result is
undefined.
@end deftypefn
@deftypefn {Runtime Function} int __ctzsi2 (int @var{a})
@deftypefnx {Runtime Function} int __ctzdi2 (long @var{a})
@deftypefnx {Runtime Function} int __ctzti2 (long long @var{a})
@deftypefn {Runtime Function} int __ctzsi2 (unsigned int @var{a})
@deftypefnx {Runtime Function} int __ctzdi2 (unsigned long @var{a})
@deftypefnx {Runtime Function} int __ctzti2 (unsigned long long @var{a})
These functions return the number of trailing 0-bits in @var{a}, starting
at the least significant bit position. If @var{a} is zero, the result is
undefined.
@end deftypefn
@deftypefn {Runtime Function} int __ffsdi2 (long @var{a})
@deftypefnx {Runtime Function} int __ffsti2 (long long @var{a})
@deftypefn {Runtime Function} int __ffsdi2 (unsigned long @var{a})
@deftypefnx {Runtime Function} int __ffsti2 (unsigned long long @var{a})
These functions return the index of the least significant 1-bit in @var{a},
or the value zero if @var{a} is zero. The least significant bit is index
one.
@end deftypefn
@deftypefn {Runtime Function} int __paritysi2 (int @var{a})
@deftypefnx {Runtime Function} int __paritydi2 (long @var{a})
@deftypefnx {Runtime Function} int __parityti2 (long long @var{a})
@deftypefn {Runtime Function} int __paritysi2 (unsigned int @var{a})
@deftypefnx {Runtime Function} int __paritydi2 (unsigned long @var{a})
@deftypefnx {Runtime Function} int __parityti2 (unsigned long long @var{a})
These functions return the value zero if the number of bits set in
@var{a} is even, and the value one otherwise.
@end deftypefn
@deftypefn {Runtime Function} int __popcountsi2 (int @var{a})
@deftypefnx {Runtime Function} int __popcountdi2 (long @var{a})
@deftypefnx {Runtime Function} int __popcountti2 (long long @var{a})
@deftypefn {Runtime Function} int __popcountsi2 (unsigned int @var{a})
@deftypefnx {Runtime Function} int __popcountdi2 (unsigned long @var{a})
@deftypefnx {Runtime Function} int __popcountti2 (unsigned long long @var{a})
These functions return the number of bits set in @var{a}.
@end deftypefn