Add -fpartial-profile-training

[Jakub Jelinek]

On Wed, Dec 04, 2019 at 10:52:28PM +0100, Jan Hubicka wrote:
> 	* cgraphclones.c (localize_profile): New function.
> 	(cgraph_node::create_clone): Use it for partial profiles.
> 	* common.opt (fprofile-partial-training): New flag.

This FAILs everywhere, with:
Running /usr/src/gcc/gcc/testsuite/gcc.misc-tests/help.exp ...
FAIL: compiler driver --help=common option(s): "^ +-.*[^:.]$" absent from output: "  -fprofile-partial-training  Do not assume that functions never executed during the train run are cold"
FAIL: compiler driver --help=optimizers option(s): "^ +-.*[^:.]$" absent from output: "  -fprofile-partial-training  Do not assume that functions never executed during the train run are cold"

Fixed thusly, tested on x86_64-linux, committed to trunk as obvious:

2019-12-06  Jakub Jelinek  <jakub@redhat.com>

	* common.opt (fprofile-partial-training): Terminate description with
	full stop.

--- gcc/common.opt.jj	2019-12-06 00:40:46.096605346 +0100
+++ gcc/common.opt	2019-12-06 01:24:22.825265282 +0100
@@ -2162,7 +2162,7 @@ Enable common options for generating pro
 
 fprofile-partial-training
 Common Report Var(flag_profile_partial_training) Optimization
-Do not assume that functions never executed during the train run are cold
+Do not assume that functions never executed during the train run are cold.
 
 fprofile-use
 Common Var(flag_profile_use)

	Jakub