Fix resuming generator marked for optimization.

src/runtime/runtime-generator.cc

 // Copyright 2014 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.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/factory.h"
 #include "src/frames-inl.h"
 #include "src/objects-inl.h"
@@ skipping 25 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_SuspendJSGeneratorObject) {
   HandleScope handle_scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(JSGeneratorObject, generator_object, 0);
 
   JavaScriptFrameIterator stack_iterator(isolate);
   JavaScriptFrame* frame = stack_iterator.frame();
   RUNTIME_ASSERT(frame->function()->shared()->is_generator());
   DCHECK_EQ(frame->function(), generator_object->function());
+  DCHECK(frame->function()->shared()->is_compiled());
+  DCHECK(!frame->function()->IsOptimized());
 
   // The caller should have saved the context and continuation already.
   DCHECK_EQ(generator_object->context(), Context::cast(frame->context()));
   DCHECK_LT(0, generator_object->continuation());
 
   // We expect there to be at least two values on the operand stack: the return
   // value of the yield expression, and the arguments to this runtime call.
   // Neither of those should be saved.
   int operands_count = frame->ComputeOperandsCount();
   DCHECK_GE(operands_count, 1 + args.length());
@@ skipping 25 matching lines @@
 RUNTIME_FUNCTION(Runtime_ResumeJSGeneratorObject) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 3);
   CONVERT_ARG_CHECKED(JSGeneratorObject, generator_object, 0);
   CONVERT_ARG_CHECKED(Object, value, 1);
   CONVERT_SMI_ARG_CHECKED(resume_mode_int, 2);
   JavaScriptFrameIterator stack_iterator(isolate);
   JavaScriptFrame* frame = stack_iterator.frame();
 
   DCHECK_EQ(frame->function(), generator_object->function());
-  DCHECK(frame->function()->is_compiled());
+  DCHECK(frame->function()->shared()->is_compiled());
+  DCHECK(!frame->function()->IsOptimized());
 
   STATIC_ASSERT(JSGeneratorObject::kGeneratorExecuting < 0);
   STATIC_ASSERT(JSGeneratorObject::kGeneratorClosed == 0);
 
-  Address pc = generator_object->function()->code()->instruction_start();
+  Code* code = generator_object->function()->shared()->code();
   int offset = generator_object->continuation();
-  DCHECK(offset > 0);
-  frame->set_pc(pc + offset);
+  DCHECK_GT(offset, 0);
+  frame->set_pc(code->instruction_start() + offset);
   if (FLAG_enable_embedded_constant_pool) {
-    frame->set_constant_pool(
-        generator_object->function()->code()->constant_pool());
+    frame->set_constant_pool(code->constant_pool());
   }
   generator_object->set_continuation(JSGeneratorObject::kGeneratorExecuting);
 
   FixedArray* operand_stack = generator_object->operand_stack();
   int operands_count = operand_stack->length();
   if (operands_count != 0) {
     frame->RestoreOperandStack(operand_stack);
     generator_object->set_operand_stack(isolate->heap()->empty_fixed_array());
   }
 
@@ skipping 103 matching lines @@
   return nullptr;
 }
 
 RUNTIME_FUNCTION(Runtime_GeneratorThrow) {
   UNREACHABLE();
   return nullptr;
 }
 
 }  // namespace internal
 }  // namespace v8