From: Kurt  Stephens <ks.ruby@...>
Date: 2011-07-17T01:01:25+09:00
Subject: [ruby-core:38103] [Ruby 1.9 - Feature #5033] PATCH: 1.9: gc_mark_children: Avoid gc_mark() tail recursion, use goto again.


Issue #5033 has been updated by Kurt  Stephens.


Not aware of any compiler that is smart enough to optimize away the second half of gc_mark() (lines 1616-1628), when tail called from gc_mark_children().

gc_mark_children() already uses goto.

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Feature #5033: PATCH: 1.9: gc_mark_children: Avoid gc_mark() tail recursion, use goto again.
http://redmine.ruby-lang.org/issues/5033

Author: Kurt  Stephens
Status: Assigned
Priority: Normal
Assignee: Narihiro Nakamura
Category: core
Target version: 1.9.x


Minor GC improvement.

Avoid recurring into gc_mark() when "goto again;" is sufficient.

-- KAS



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