Hello world,
the attached patch documents -floop-flatten as unsafe (see the PR).
Tested with 'make dvi', 'make info' and 'make pdf'. I'd like to
get this into the 4.7 release.
OK for trunk?
Thomas
2012-02-27 Thomas Koenig <tkoe...@gcc.gnu.org>
PR tree-optimization/53207
* doc/invoke.texi: Document -floop-flatten as experimental
and mention that it can lead to wrong code.
Index: doc/invoke.texi
===================================================================
--- doc/invoke.texi (Revision 184585)
+++ doc/invoke.texi (Arbeitskopie)
@@ -7290,7 +7290,8 @@
@opindex floop-flatten
Removes the loop nesting structure: transforms the loop nest into a
single loop. This transformation can be useful to vectorize all the
-levels of the loop nest.
+levels of the loop nest. @emph{This feature is experimental and may
+cause wrong code to be generated.}
@item -floop-parallelize-all
@opindex floop-parallelize-all
