rs6000-c.c: Add support for built-in functions vector bool char vec_revb (vector...

rs6000-c.c: Add support for built-in functions vector bool char vec_revb (vector bool char)...

gcc/ChangeLog:

2017-07-12  Carl Love  <cel@us.ibm.com>

	* config/rs6000/rs6000-c.c: Add support for built-in functions
	vector bool char vec_revb (vector bool char);
	vector bool short vec_revb (vector short char);
	vector bool int vec_revb (vector bool int);
	vector bool long long vec_revb (vector bool long long);
	* doc/extend.texi: Update the built-in documentation file for the
	new built-in functions.

gcc/testsuite/ChangeLog:

2017-07-12  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/p9-xxbr-1.c (rev_bool_char, rev_bool_short,
	rev_bool_int): Add test cases for builtins.
	* gcc.target/powerpc/p9-xxbr-2.c (rev_long_long, rev_ulong_ulong): Add
	test cases for builtins.

From-SVN: r250155