Hi,
Option -ftree-loop-distribution is improved and enabled by default at -O3 for
GCC8.
This patch describes the change, is it OK?
Thanks,
bin
Index: htdocs/gcc-8/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-8/changes.html,v
retrieving revision 1.51
diff -u -r1.51 changes.html
--- htdocs/gcc-8/changes.html 3 Apr 2018 06:52:04 -0000 1.51
+++ htdocs/gcc-8/changes.html 3 Apr 2018 14:26:31 -0000
@@ -101,6 +101,13 @@
are enabled by default at <code>-O3</code> and above.
</li>
<li>
+ Classical loop nest optimization pass <code>-ftree-loop-distribution</code>
+ has been improved and enabled by default at <code>-O3</code> and above.
+ It supports loop nest distribution in some restricted scenarios; it also
+ supports cancellable innermost loop distribution with loop versioning
+ under runtime alias checks.
+ </li>
+ <li>
The new option <code>-fstack-clash-protection</code> causes the
compiler to insert probes whenever stack space is allocated
statically or dynamically to reliably detect stack overflows and
