invoke.texi: Add -floop-unroll-and-jam to options enabled by -O3.

2018-04-19  Toon Moene  <toon@moene.org>

	* doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
	by -O3.

From-SVN: r259509

gcc/ChangeLog

+2018-04-19  Toon Moene  <toon@moene.org>
+
+	* doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
+	by -O3. 
+
 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/85467

gcc/doc/invoke.texi

@@ -7652,6 +7652,7 @@ by @option{-O2} and also turns on the following optimization flags:
 -ftree-loop-distribution @gol
 -ftree-loop-distribute-patterns @gol
 -floop-interchange @gol
+-floop-unroll-and-jam @gol
 -fsplit-paths @gol
 -ftree-slp-vectorize @gol
 -fvect-cost-model @gol