[runtime] Fix ES6 9.2.1 [[Call]] when encountering a classConstructor.

src/x64/macro-assembler-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 3804 matching lines @@
 void MacroAssembler::DebugBreak() {
   Set(rax, 0);  // No arguments.
   LoadAddress(rbx,
               ExternalReference(Runtime::kHandleDebuggerStatement, isolate()));
   CEntryStub ces(isolate(), 1);
   DCHECK(AllowThisStubCall(&ces));
   Call(ces.GetCode(), RelocInfo::DEBUGGER_STATEMENT);
 }
 
 
+void MacroAssembler::InvokeFunction(Register function,
+                                    const ParameterCount& actual,
+                                    InvokeFlag flag,
+                                    const CallWrapper& call_wrapper) {
+  movp(rdx, FieldOperand(function, JSFunction::kSharedFunctionInfoOffset));
+  LoadSharedFunctionInfoSpecialField(
+      rbx, rdx, SharedFunctionInfo::kFormalParameterCountOffset);
+
+  ParameterCount expected(rbx);
+  InvokeFunction(function, expected, actual, flag, call_wrapper);
+}
+
+
+void MacroAssembler::InvokeFunction(Handle<JSFunction> function,
+                                    const ParameterCount& expected,
+                                    const ParameterCount& actual,
+                                    InvokeFlag flag,
+                                    const CallWrapper& call_wrapper) {
+  Move(rdi, function);
+  InvokeFunction(rdi, expected, actual, flag, call_wrapper);
+}
+
+
+void MacroAssembler::InvokeFunction(Register function,
+                                    const ParameterCount& expected,
+                                    const ParameterCount& actual,
+                                    InvokeFlag flag,
+                                    const CallWrapper& call_wrapper) {
+  DCHECK(function.is(rdi));
+  movp(rsi, FieldOperand(function, JSFunction::kContextOffset));
+  // Advances rdx to the end of the Code object header, to the start of
+  // the executable code.
+  movp(rdx, FieldOperand(rdi, JSFunction::kCodeEntryOffset));
+  InvokeCode(rdx, expected, actual, flag, call_wrapper);
+}
+
+
 void MacroAssembler::InvokeCode(Register code,
                                 const ParameterCount& expected,
                                 const ParameterCount& actual,
                                 InvokeFlag flag,
                                 const CallWrapper& call_wrapper) {
   // You can't call a function without a valid frame.
   DCHECK(flag == JUMP_FUNCTION || has_frame());
 
   Label done;
   bool definitely_mismatches = false;
@@ skipping 13 matching lines @@
       call_wrapper.AfterCall();
     } else {
       DCHECK(flag == JUMP_FUNCTION);
       jmp(code);
     }
     bind(&done);
   }
 }
 
 
-void MacroAssembler::InvokeFunction(Register function,
-                                    const ParameterCount& actual,
-                                    InvokeFlag flag,
-                                    const CallWrapper& call_wrapper) {
-  // You can't call a function without a valid frame.
-  DCHECK(flag == JUMP_FUNCTION || has_frame());
-
-  DCHECK(function.is(rdi));
-  movp(rdx, FieldOperand(function, JSFunction::kSharedFunctionInfoOffset));
-  movp(rsi, FieldOperand(function, JSFunction::kContextOffset));
-  LoadSharedFunctionInfoSpecialField(rbx, rdx,
-      SharedFunctionInfo::kFormalParameterCountOffset);
-  // Advances rdx to the end of the Code object header, to the start of
-  // the executable code.
-  movp(rdx, FieldOperand(rdi, JSFunction::kCodeEntryOffset));
-
-  ParameterCount expected(rbx);
-  InvokeCode(rdx, expected, actual, flag, call_wrapper);
-}
-
-
-void MacroAssembler::InvokeFunction(Register function,
-                                    const ParameterCount& expected,
-                                    const ParameterCount& actual,
-                                    InvokeFlag flag,
-                                    const CallWrapper& call_wrapper) {
-  // You can't call a function without a valid frame.
-  DCHECK(flag == JUMP_FUNCTION || has_frame());
-
-  DCHECK(function.is(rdi));
-  movp(rsi, FieldOperand(function, JSFunction::kContextOffset));
-  // Advances rdx to the end of the Code object header, to the start of
-  // the executable code.
-  movp(rdx, FieldOperand(rdi, JSFunction::kCodeEntryOffset));
-
-  InvokeCode(rdx, expected, actual, flag, call_wrapper);
-}
-
-
-void MacroAssembler::InvokeFunction(Handle<JSFunction> function,
-                                    const ParameterCount& expected,
-                                    const ParameterCount& actual,
-                                    InvokeFlag flag,
-                                    const CallWrapper& call_wrapper) {
-  Move(rdi, function);
-  InvokeFunction(rdi, expected, actual, flag, call_wrapper);
-}
-
-
 void MacroAssembler::InvokePrologue(const ParameterCount& expected,
                                     const ParameterCount& actual,
                                     Handle<Code> code_constant,
                                     Register code_register,
                                     Label* done,
                                     bool* definitely_mismatches,
                                     InvokeFlag flag,
                                     Label::Distance near_jump,
                                     const CallWrapper& call_wrapper) {
   bool definitely_matches = false;
@@ skipping 1455 matching lines @@
   movl(rax, dividend);
   shrl(rax, Immediate(31));
   addl(rdx, rax);
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64