Implement alias

lib/ruby_vm/mjit/insn_compiler.rb

@@ -3149,8 +3149,7 @@ module RubyVM::MJIT
         asm.incr_counter(:send_bmethod)
         return CantCompile
       when C.VM_METHOD_TYPE_ALIAS
-        asm.incr_counter(:send_alias)
-        return CantCompile
+        jit_call_alias(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:)
       when C.VM_METHOD_TYPE_OPTIMIZED
         jit_call_optimized(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:)
       when C.VM_METHOD_TYPE_UNDEF
@@ -3362,6 +3361,12 @@ module RubyVM::MJIT
       jit_getivar(jit, ctx, asm, comptime_recv, ivar_id, recv_opnd)
     end
 
+    # vm_call_alias
+    def jit_call_alias(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:)
+      cme = C.rb_aliased_callable_method_entry(cme)
+      jit_call_method_each_type(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:)
+    end
+
     # vm_call_optimized
     # @param jit [RubyVM::MJIT::JITState]
     # @param ctx [RubyVM::MJIT::Context]

mjit_c.rb

@@ -403,6 +403,15 @@ module RubyVM::MJIT # :nodoc: all
       }
     end
 
+    def rb_aliased_callable_method_entry(cme)
+      _cme = cme.to_i
+      cme_addr = Primitive.cstmt! %{
+        extern const rb_callable_method_entry_t * rb_aliased_callable_method_entry(const rb_callable_method_entry_t *me);
+        return SIZET2NUM((size_t)rb_aliased_callable_method_entry((const rb_callable_method_entry_t *)NUM2SIZET(_cme)));
+      }
+      rb_callable_method_entry_t.new(cme_addr)
+    end
+
     #========================================================================================
     #
     # Old stuff