Revision: 1404
Author: [email protected]
Date: Tue Nov 30 14:13:02 2010
Log: Document removal of empty statements in 5.13.7+
http://code.google.com/p/perl-devel-nytprof/source/detail?r=1404
Modified:
/trunk/lib/Devel/NYTProf.pm
=======================================
--- /trunk/lib/Devel/NYTProf.pm Fri Nov 19 08:45:40 2010
+++ /trunk/lib/Devel/NYTProf.pm Tue Nov 30 14:13:02 2010
@@ -355,6 +355,10 @@
so the profile won't show a statement count for line 2 in your source code
because the C<return> was merged into the C<if> statement on the preceding
line.
+Also 'empty' statements like C<1;> are removed entirely. Such statements
are
+empty because the optimizer has already removed the pointless constant in
void
+context. It then goes on to remove the now empty statement (in perl >=
5.13.7).
+
Using the C<optimize=0> option disables the optimizer so you'll get lower
overall performance but more accurately assigned statement counts.
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