merge revision(s) 52928: [Backport #11784]

	* insns.def (opt_case_dispatch): check Float#=== redefinition

	* test/ruby/test_optimization.rb (test_opt_case_dispatch): new
	  [ruby-core:71920] [Bug #11784]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@52977 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/insns.def b/insns.def
index 57b53cf549..999dc799c5 100644
--- a/insns.def
+++ b/insns.def
@@ -1326,6 +1326,7 @@ opt_case_dispatch
 	if (BASIC_OP_UNREDEFINED_P(BOP_EQQ,
 				   SYMBOL_REDEFINED_OP_FLAG |
 				   FIXNUM_REDEFINED_OP_FLAG |
+				   FLOAT_REDEFINED_OP_FLAG |
 				   BIGNUM_REDEFINED_OP_FLAG |
 				   STRING_REDEFINED_OP_FLAG)) {
 	    st_data_t val;