invoke.texi: Move -floop-unroll-and-jam documentation directly after that of -floop-interchange.

2018-05-18  Toon Moene  <toon@moene.org>

	* doc/invoke.texi: Move -floop-unroll-and-jam documentation
	directly after that of -floop-interchange. Indicate that both
	options are enabled by default when specifying -O3.

From-SVN: r260352

gcc/ChangeLog

+2018-05-18  Toon Moene  <toon@moene.org>
+
+	* doc/invoke.texi: Move -floop-unroll-and-jam documentation
+	directly after that of -floop-interchange. Indicate that both
+	options are enabled by default when specifying -O3. 
+
 2018-05-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* config/aarch64/aarch64-simd.md (vec_set<mode>): Use VALL_F16 mode

gcc/doc/invoke.texi

@@ -8838,6 +8838,13 @@ for (int i = 0; i < N; i++)
     for (int j = 0; j < N; j++)
       c[i][j] = c[i][j] + a[i][k]*b[k][j];
 @end smallexample
+This flag is enabled by default at @option{-O3}.
+
+@item -floop-unroll-and-jam
+@opindex floop-unroll-and-jam
+Apply unroll and jam transformations on feasible loops.  In a loop
+nest this unrolls the outer loop by some factor and fuses the resulting
+multiple inner loops.  This flag is enabled by default at @option{-O3}.
 
 @item -ftree-loop-im
 @opindex ftree-loop-im
@@ -10010,12 +10017,6 @@ for one side of the iteration space and false for the other.
 Move branches with loop invariant conditions out of the loop, with duplicates
 of the loop on both branches (modified according to result of the condition).
 
-@item -floop-unroll-and-jam
-@opindex floop-unroll-and-jam
-Apply unroll and jam transformations on feasible loops.  In a loop
-nest this unrolls the outer loop by some factor and fuses the resulting
-multiple inner loops.
-
 @item -ffunction-sections
 @itemx -fdata-sections
 @opindex ffunction-sections