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re PR c/50347 (unexpected -Wconversion error from gcc builtin)

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PR c/50347
	* doc/extend.texi (ffs Builtins): Change unsigned types to signed
	types.

From-SVN: r208870
This commit is contained in:
Marek Polacek 2014-03-27 15:59:07 +00:00 committed by Marek Polacek
parent 59976ef878
commit 324dc401fe
2 changed files with 11 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2014-03-27 Marek Polacek <polacek@redhat.com>
PR c/50347
* doc/extend.texi (ffs Builtins): Change unsigned types to signed
types.
2014-03-27 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* config/s390/s390.c (s390_can_use_return_insn): Check for

10
gcc/doc/extend.texi
View File

@ -8978,7 +8978,7 @@ Similar to @code{__builtin_nans}, except the return type is @code{float}.
Similar to @code{__builtin_nans}, except the return type is @code{long double}.
@end deftypefn
@deftypefn {Built-in Function} int __builtin_ffs (unsigned int x)
@deftypefn {Built-in Function} int __builtin_ffs (int x)
Returns one plus the index of the least significant 1-bit of @var{x}, or
if @var{x} is zero, returns zero.
@end deftypefn
@ -9008,9 +9008,9 @@ Returns the parity of @var{x}, i.e.@: the number of 1-bits in @var{x}
modulo 2.
@end deftypefn
@deftypefn {Built-in Function} int __builtin_ffsl (unsigned long)
@deftypefn {Built-in Function} int __builtin_ffsl (long)
Similar to @code{__builtin_ffs}, except the argument type is
@code{unsigned long}.
@code{long}.
@end deftypefn
@deftypefn {Built-in Function} int __builtin_clzl (unsigned long)
@ -9038,9 +9038,9 @@ Similar to @code{__builtin_parity}, except the argument type is
@code{unsigned long}.
@end deftypefn
@deftypefn {Built-in Function} int __builtin_ffsll (unsigned long long)
@deftypefn {Built-in Function} int __builtin_ffsll (long long)
Similar to @code{__builtin_ffs}, except the argument type is
@code{unsigned long long}.
@code{long long}.
@end deftypefn
@deftypefn {Built-in Function} int __builtin_clzll (unsigned long long)