First step towards making JumpTarget work on ARM. Instead...

src/jump-target.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 19 matching lines @@
 #include "codegen-inl.h"
 #include "jump-target-inl.h"
 #include "register-allocator-inl.h"
 
 namespace v8 {
 namespace internal {
 
 // -------------------------------------------------------------------------
 // JumpTarget implementation.
 
-bool JumpTarget::compiling_deferred_code_ = false;
-
-
-void JumpTarget::Unuse() {
-  reaching_frames_.Clear();
-  merge_labels_.Clear();
-  entry_frame_ = NULL;
-  entry_label_.Unuse();
-}
-
-
 void JumpTarget::Jump() {
   DoJump();
 }
 
 
 void JumpTarget::Branch(Condition cc, Hint hint) {
   DoBranch(cc, hint);
 }
 
 
 void JumpTarget::Bind() {
   DoBind();
 }
 
 
-void JumpTarget::AddReachingFrame(VirtualFrame* frame) {
-  ASSERT(reaching_frames_.length() == merge_labels_.length());
-  ASSERT(entry_frame_ == NULL);
-  Label fresh;
-  merge_labels_.Add(fresh);
-  reaching_frames_.Add(frame);
-}
-
-
-// -------------------------------------------------------------------------
-// BreakTarget implementation.
-
-void BreakTarget::set_direction(Directionality direction) {
-  JumpTarget::set_direction(direction);
-  ASSERT(cgen()->has_valid_frame());
-  expected_height_ = cgen()->frame()->height();
-}
-
-
-void BreakTarget::CopyTo(BreakTarget* destination) {
-  ASSERT(destination != NULL);
-  destination->direction_ = direction_;
-  destination->reaching_frames_.Rewind(0);
-  destination->reaching_frames_.AddAll(reaching_frames_);
-  destination->merge_labels_.Rewind(0);
-  destination->merge_labels_.AddAll(merge_labels_);
-  destination->entry_frame_ = entry_frame_;
-  destination->entry_label_ = entry_label_;
-  destination->expected_height_ = expected_height_;
-}
-
-
-void BreakTarget::Branch(Condition cc, Hint hint) {
-  ASSERT(cgen()->has_valid_frame());
-
-  int count = cgen()->frame()->height() - expected_height_;
-  if (count > 0) {
-    // We negate and branch here rather than using DoBranch's negate
-    // and branch.  This gives us a hook to remove statement state
-    // from the frame.
-    JumpTarget fall_through;
-    // Branch to fall through will not negate, because it is a
-    // forward-only target.
-    fall_through.Branch(NegateCondition(cc), NegateHint(hint));
-    Jump();  // May emit merge code here.
-    fall_through.Bind();
-  } else {
-    DoBranch(cc, hint);
-  }
-}
-
-
 // -------------------------------------------------------------------------
 // ShadowTarget implementation.
 
 ShadowTarget::ShadowTarget(BreakTarget* shadowed) {
   ASSERT(shadowed != NULL);
   other_target_ = shadowed;
 
 #ifdef DEBUG
   is_shadowing_ = true;
 #endif
@@ skipping 16 matching lines @@
   other_target_->CopyTo(&temp);
   CopyTo(other_target_);
   temp.CopyTo(this);
   temp.Unuse();
 
 #ifdef DEBUG
   is_shadowing_ = false;
 #endif
 }
 
-
 } }  // namespace v8::internal