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Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 5199134ca3c..dbd7dd9e6bc 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -14664,6 +14664,21 @@ returns the Time Base Register value as an unsigned long, throwing away the most significant word on 32-bit environments. The following built-in functions are available for the PowerPC family +of processors, starting with ISA 2.05 or later (@option{-mcpu=power6} +or @option{-mcmpb}): +@smallexample +long long __builtin_cmpb (long long, long long); +int __builtin_cmpb_32 (int, int); +@end smallexample + +The @code{__builtin_cmpb} and @code{__builtin_cmpb_32} functions +perform a byte-wise compare on the contents of their two arguments, +returning the result of the byte-wise comparison in the returned +value. For each byte comparison, the corresponding byte of the return +value holds 0xff if input bytes are equal, and 0 if the input bytes +are not equal. + +The following built-in functions are available for the PowerPC family of processors, starting with ISA 2.06 or later (@option{-mcpu=power7} or @option{-mpopcntd}): @smallexample |