[interpreter] Add basic framework for bytecode handler code generation.

src/compiler/raw-machine-assembler.h

Index: src/compiler/raw-machine-assembler.h
diff --git a/src/compiler/raw-machine-assembler.h b/src/compiler/raw-machine-assembler.h
index 36299440d681ac2550ed7e336741e08b94fe92f4..9722a4eee1b21559cd6986ead9cf824648362a16 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -5,6 +5,7 @@
 #ifndef V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 #define V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 
+#include "src/compiler.h"

[Michael Starzinger, 2015/07/17 13:20:59]

Do we need this include here? This smells to include a lot.

[rmcilroy, 2015/07/21 11:13:21]

The reason I did this is that raw_machine_assembler.h doesn't "self host" all
it's needed header includes (raw_machine_assembler.cc didn't have the header at
the top of it's includes) and so relies on some other things which are included
by src/compiler/pipeline.h. It turns out all it needs is ExternalReference which
is defined in assembler.h, so I've changed this to be src/assembler.h.

 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph-builder.h"
 #include "src/compiler/linkage.h"
@@ -12,7 +13,6 @@
 #include "src/compiler/node.h"
 #include "src/compiler/operator.h"
 
-
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ -47,6 +47,7 @@ class RawMachineAssembler : public GraphBuilder {
                       MachineType word = kMachPtr,
                       MachineOperatorBuilder::Flags flags =
                           MachineOperatorBuilder::Flag::kNoFlags);
+
   ~RawMachineAssembler() override {}
 
   Zone* zone() const { return graph()->zone(); }
@@ -493,6 +494,9 @@ class RawMachineAssembler : public GraphBuilder {
                        MachineType arg7_type, Node* function, Node* arg0,
                        Node* arg1, Node* arg2, Node* arg3, Node* arg4,
                        Node* arg5, Node* arg6, Node* arg7);
+  Node* CallInterpreterHandler(Node* target_handler,
+                         Node* bytecodes,
+                         Node* dispatch_table);
   void Return(Node* value);
   void Bind(Label* label);
   void Deoptimize(Node* state);
@@ -511,21 +515,22 @@ class RawMachineAssembler : public GraphBuilder {
   // MachineAssembler is invalid after export.
   Schedule* Export();
 
+  Schedule* schedule() {
+    DCHECK(ScheduleValid());
+    return schedule_;
+  }
+
+  BasicBlock* CurrentBlock();
+
  protected:
   Node* MakeNode(const Operator* op, int input_count, Node** inputs,
                  bool incomplete) final;
 
   bool ScheduleValid() { return schedule_ != NULL; }
 
-  Schedule* schedule() {
-    DCHECK(ScheduleValid());
-    return schedule_;
-  }
-
  private:
   BasicBlock* Use(Label* label);
   BasicBlock* EnsureBlock(Label* label);
-  BasicBlock* CurrentBlock();
 
   Schedule* schedule_;
   MachineOperatorBuilder machine_;