* parse.y: optimize 'for' statement when one variable given.

* benchmark/bm_loop_for.rb: added.
* benchmark/bm_loop_times.rb: modified.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19753 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 4 insertions, 1 deletions

diff --git a/benchmark/bm_loop_for.rb b/benchmark/bm_loop_for.rb
new file mode 100644
index 0000000000..398f6ff611
--- /dev/null
+++ b/benchmark/bm_loop_for.rb
@@ -0,0 +1,3 @@
+for i in 1..30_000_000

+  #

+end

diff --git a/benchmark/bm_loop_times.rb b/benchmark/bm_loop_times.rb
index c5317b8228..521f72ad1a 100644
--- a/benchmark/bm_loop_times.rb
+++ b/benchmark/bm_loop_times.rb
@@ -1 +1 @@
-30000000.times{|e|}
+30_000_000.times{|e|}