Fast codegen: Working break and continue.

src/x64/macro-assembler-x64.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 1327 matching lines @@
   intptr_t smi = reinterpret_cast<intptr_t>(source);
   if (is_int32(smi)) {
     push(Immediate(static_cast<int32_t>(smi)));
   } else {
     Set(kScratchRegister, smi);
     push(kScratchRegister);
   }
 }
 
 
+void MacroAssembler::Drop(int stack_elements) {
+  if (stack_elements > 0) {
+    addq(rsp, Immediate(stack_elements * kPointerSize));
+  }
+}
+
+
 void MacroAssembler::Test(const Operand& src, Smi* source) {
   intptr_t smi = reinterpret_cast<intptr_t>(source);
   if (is_int32(smi)) {
     testl(src, Immediate(static_cast<int32_t>(smi)));
   } else {
     Move(kScratchRegister, source);
     testq(src, kScratchRegister);
   }
 }
 
@@ skipping 66 matching lines @@
     push(Immediate(0));  // NULL frame pointer.
   }
   // Save the current handler.
   movq(kScratchRegister, ExternalReference(Top::k_handler_address));
   push(Operand(kScratchRegister, 0));
   // Link this handler.
   movq(Operand(kScratchRegister, 0), rsp);
 }
 
 
+void MacroAssembler::PopTryHandler() {
+  ASSERT_EQ(0, StackHandlerConstants::kNextOffset);
+  movq(kScratchRegister, ExternalReference(Top::k_handler_address));
+  pop(Operand(kScratchRegister, 0));
+  addq(rsp, Immediate(StackHandlerConstants::kSize - kPointerSize));
+}
+
+
 void MacroAssembler::Ret() {
   ret(0);
 }
 
 
 void MacroAssembler::FCmp() {
   fucomip();
   ffree(0);
   fincstp();
 }
@@ skipping 939 matching lines @@
 CodePatcher::~CodePatcher() {
   // Indicate that code has changed.
   CPU::FlushICache(address_, size_);
 
   // Check that the code was patched as expected.
   ASSERT(masm_.pc_ == address_ + size_);
   ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
 }
 
 } }  // namespace v8::internal