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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-11-23 09:54:07 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-11-23 09:54:07 +0000 |
commit | 3c575a15c24f2eda10c57e3f30037ee3c372f994 (patch) | |
tree | 3df58c798591e0dbdc2a93df162cea32f9a523ed /test/ruby | |
parent | b828fb85dda5970334d42f1a0b542c8d3ebf825b (diff) | |
download | ruby-3c575a15c24f2eda10c57e3f30037ee3c372f994.tar.gz |
* vm.c (rb_thread_mark): should mark self in conrol
frames. [ruby-core:33289]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29885 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/ruby')
-rw-r--r-- | test/ruby/test_optimization.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/ruby/test_optimization.rb b/test/ruby/test_optimization.rb index 8e8311e6ef..ed604e7bc3 100644 --- a/test/ruby/test_optimization.rb +++ b/test/ruby/test_optimization.rb @@ -137,4 +137,27 @@ class TestRubyOptimization < Test::Unit::TestCase assert_equal true, MyObj.new == nil end + def test_tailcall + bug4082 = '[ruby-core:33289]' + + option = { + tailcall_optimization: true, + trace_instruction: false, + } + iseq = RubyVM::InstructionSequence.new(<<-EOF, "Bug#4082", bug4082, nil, option).eval + class #{self.class}::Tailcall + def fact_helper(n, res) + if n == 1 + res + else + fact_helper(n - 1, n * res) + end + end + def fact(n) + fact_helper(n, 1) + end + end + EOF + assert_equal(9131, Tailcall.new.fact(3000).to_s.size, bug4082) + end end |