From 484cc6b3bc828a0bb62aebefd7fdc2c86cab4f57 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 30 Mar 2018 05:15:07 +0000
Subject: compile.c: do not dump unused callinfos

* compile.c (compile_if): rewind callinfo indexes used in
  unreachable paths, to get rid of dumping unused callinfos.
  [ruby-core:86399] [Bug #14553]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63040 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_optimization.rb | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'test/ruby/test_optimization.rb')

diff --git a/test/ruby/test_optimization.rb b/test/ruby/test_optimization.rb
index 38da8b6c45..d77651f2eb 100644
--- a/test/ruby/test_optimization.rb
+++ b/test/ruby/test_optimization.rb
@@ -721,6 +721,17 @@ class TestRubyOptimization < Test::Unit::TestCase
     END
   end
 
+  def test_callinfo_unreachable_path
+    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    begin;
+      iseq = RubyVM::InstructionSequence.compile("if false; foo(bar: :baz); else :ok end")
+      bin = iseq.to_binary
+      iseq = RubyVM::InstructionSequence.load_from_binary(bin)
+      assert_instance_of(RubyVM::InstructionSequence, iseq)
+      assert_equal(:ok, iseq.eval)
+    end;
+  end
+
   def test_side_effect_in_popped_splat
     bug = '[ruby-core:84340] [Bug #14201]'
     eval("{**(bug = nil; {})};42")
-- 
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