Custom call IC-s for String.prototype.{charAt,charCodeAt}.

src/jump-target-heavy.cc

 // Copyright 2010 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 314 matching lines @@
   // the expression stack.
   int stack_pointer = length - 1;
   while (stack_pointer >= entry_frame_->expression_base_index() &&
          !entry_frame_->elements_[stack_pointer].is_synced()) {
     stack_pointer--;
   }
   entry_frame_->stack_pointer_ = stack_pointer;
 }
 
 
-DeferredCode::DeferredCode()
-    : masm_(CodeGeneratorScope::Current()->masm()),
-      statement_position_(masm_->current_statement_position()),
-      position_(masm_->current_position()) {
-  ASSERT(statement_position_ != RelocInfo::kNoPosition);
-  ASSERT(position_ != RelocInfo::kNoPosition);
-
-  CodeGeneratorScope::Current()->AddDeferred(this);
-#ifdef DEBUG
-  comment_ = "";
-#endif
-
+FrameRegisterState::FrameRegisterState(VirtualFrame* frame) {
   // Copy the register locations from the code generator's frame.
   // These are the registers that will be spilled on entry to the
   // deferred code and restored on exit.
-  VirtualFrame* frame = CodeGeneratorScope::Current()->frame();
   int sp_offset = frame->fp_relative(frame->stack_pointer_);
   for (int i = 0; i < RegisterAllocator::kNumRegisters; i++) {
     int loc = frame->register_location(i);
     if (loc == VirtualFrame::kIllegalIndex) {
       registers_[i] = kIgnore;
     } else if (frame->elements_[loc].is_synced()) {
       // Needs to be restored on exit but not saved on entry.
       registers_[i] = frame->fp_relative(loc) | kSyncedFlag;
     } else {
       int offset = frame->fp_relative(loc);
@@ skipping 55 matching lines @@
     // 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);
   }
 }
 
+
+DeferredCode::DeferredCode()
+    : masm_(CodeGeneratorScope::Current()->masm()),
+      statement_position_(masm_->current_statement_position()),
+      position_(masm_->current_position()),
+      frame_state_(CodeGeneratorScope::Current()->frame()) {
+  ASSERT(statement_position_ != RelocInfo::kNoPosition);
+  ASSERT(position_ != RelocInfo::kNoPosition);
+
+  CodeGeneratorScope::Current()->AddDeferred(this);
+#ifdef DEBUG
+  comment_ = "";
+#endif
+}
+
 } }  // namespace v8::internal