re PR c/82234 (__builtin_shuffle is not in the keyword index)

	PR c/82234
	* doc/extend.texi: Add @findex entry for __builtin_shuffle.

From-SVN: r252947

gcc/ChangeLog

+2017-09-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/82234
+	* doc/extend.texi: Add @findex entry for __builtin_shuffle.
+
 2017-09-18  Richard Sandiford  <richard.sandiford@linaro.org>
 	    Alan Hayward  <alan.hayward@arm.com>
 	    David Sherwood  <david.sherwood@arm.com>

gcc/doc/extend.texi

@@ -9683,6 +9683,7 @@ For mixed operations between a scalar @code{s} and a vector @code{v},
 @code{s && v} is equivalent to @code{s?v!=0:0} (the evaluation is
 short-circuit) and @code{v && s} is equivalent to @code{v!=0 & (s?-1:0)}.
 
+@findex __builtin_shuffle
 Vector shuffling is available using functions
 @code{__builtin_shuffle (vec, mask)} and
 @code{__builtin_shuffle (vec0, vec1, mask)}.