2 files changed, 15 insertions, 4 deletions
diff --git a/lib/ruby_vm/mjit/code_block.rb b/lib/ruby_vm/mjit/code_block.rb
index 464d13ba8d..b4cc3d721c 100644
--- a/lib/ruby_vm/mjit/code_block.rb
+++ b/lib/ruby_vm/mjit/code_block.rb
@@ -2,11 +2,13 @@ module RubyVM::MJIT
   class CodeBlock
     # @param mem_block [Integer] JIT buffer address
     # @param mem_size  [Integer] JIT buffer size
-    def initialize(mem_block:, mem_size:)
+    # @param outliend  [TrueClass,FalseClass] true for outlined CodeBlock
+    def initialize(mem_block:, mem_size:, outlined: false)
       @comments  = Hash.new { |h, k| h[k] = [] }
       @mem_block = mem_block
       @mem_size  = mem_size
       @write_pos = 0
+      @outlined  = outlined
     end
 
     # @param asm [RubyVM::MJIT::Assembler]
@@ -44,13 +46,22 @@ module RubyVM::MJIT
     def dump_disasm(from, to)
       C.dump_disasm(from, to).each do |address, mnemonic, op_str|
         @comments.fetch(address, []).each do |comment|
-          puts bold("  # #{comment}")
+          puts colorize("  # #{comment}", bold: true)
         end
-        puts "  0x#{format("%x", address)}: #{mnemonic} #{op_str}"
+        puts colorize("  0x#{format("%x", address)}: #{mnemonic} #{op_str}")
       end
       puts
     end
 
+    def colorize(text, bold: false)
+      buf = +''
+      buf << "\e[1m" if bold
+      buf << "\e[34m" if @outlined
+      buf << text
+      buf << "\e[0m"
+      buf
+    end
+
     def bold(text)
       "\e[1m#{text}\e[0m"
     end
diff --git a/lib/ruby_vm/mjit/compiler.rb b/lib/ruby_vm/mjit/compiler.rb
index e114d43e0d..6203863218 100644
--- a/lib/ruby_vm/mjit/compiler.rb
+++ b/lib/ruby_vm/mjit/compiler.rb
@@ -32,7 +32,7 @@ module RubyVM::MJIT
     # @param mem_size  [Integer] JIT buffer size
     def initialize(mem_block, mem_size)
       @cb = CodeBlock.new(mem_block: mem_block, mem_size: mem_size / 2)
-      @ocb = CodeBlock.new(mem_block: mem_block + mem_size / 2, mem_size: mem_size / 2)
+      @ocb = CodeBlock.new(mem_block: mem_block + mem_size / 2, mem_size: mem_size / 2, outlined: true)
       @exit_compiler = ExitCompiler.new
       @insn_compiler = InsnCompiler.new(@ocb)
     end