Re: [wwwdocs] gcc-8/changes.html

[Martin Sebor <msebor at gmail dot com>]

On 04/03/2018 05:16 AM, Martin Liška wrote:
> Hello.
>
> I would like to document features I prepared in time frame of GCC 8.
>
> Martin

Just a few minor nits:

@@ -113,6 +113,93 @@

     possible for the user to have a finer-grained control over the loop
     unrolling optimization.
   </li>
+  <li>
+    GCOV tool can distinguish functions that begin on a same line in

Suggest either "The GCOV tool" (or perhaps preferably utility), or
just "GCOV."

+  <li>GCOV has more accurate numbers for execution of source line 
executions.</li>

The duplication in "Number for executions of [...] executions"
reads a little awkward.

+  <li>Having a non-void function that does not return a value is 
considered as
+    undefined behavior.  The compiler considers such code as 
unreachable and
+    makes more aggressive optimizations based on that.</li>

I think what we want to say might be something like:

  A return statement without an operand in a non-void function
  is considered unreachable and may be subject to optimization
  on that basis.

It's not undefined to define such a function.  What is undefined
is reaching that statement.

Martin