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

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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 59f4508ba92d9d5be5df257e524cb74fd65dde66..3026df4f05730e487d019160d083a86e0a5bdfee 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+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

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 8a3b9c1faa1401aff3c222731e9dc561e9698aa4..77e183c16083b58f8b0edf62a8d9350622c59ced 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/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