* insns.def: Fix optimization bug of Float#/ [Bug #9238]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44127 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Wed Dec 11 03:18:08 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* insns.def: Fix optimization bug of Float#/ [Bug #9238]
+
 Tue Dec 10 23:58:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/date/date_strptime.c (date__strptime_internal): unset

insns.def

@@ -1511,7 +1511,7 @@ opt_div
 	val = LONG2NUM(div);
     }
     else if (FLONUM_2_P(recv, obj) &&
-	     BASIC_OP_UNREDEFINED_P(BOP_MULT, FLOAT_REDEFINED_OP_FLAG)) {
+	     BASIC_OP_UNREDEFINED_P(BOP_DIV, FLOAT_REDEFINED_OP_FLAG)) {
 	val = DBL2NUM(RFLOAT_VALUE(recv) / RFLOAT_VALUE(obj));
     }
     else if (!SPECIAL_CONST_P(recv) && !SPECIAL_CONST_P(obj)) {

test/ruby/test_optimization.rb

@@ -67,6 +67,7 @@ class TestRubyOptimization < Test::Unit::TestCase
 
   def test_fixnum_div
     assert_equal 3, 15 / 5
+    assert_equal 6.66, redefine_method('Float', '/') { 4.2 / 6.66 }, "bug 9238"
   end
 
   def test_fixnum_mod