Switch full-codegen from StackHandlers to handler table.

src/x64/macro-assembler-x64.cc

 // Copyright 2012 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/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 2983 matching lines @@
 void MacroAssembler::LoadFromSafepointRegisterSlot(Register dst, Register src) {
   movp(dst, SafepointRegisterSlot(src));
 }
 
 
 Operand MacroAssembler::SafepointRegisterSlot(Register reg) {
   return Operand(rsp, SafepointRegisterStackIndex(reg.code()) * kPointerSize);
 }
 
 
-void MacroAssembler::PushTryHandler(StackHandler::Kind kind,
-                                    int handler_index) {
+void MacroAssembler::PushStackHandler() {
   // Adjust this code if not the case.
-  STATIC_ASSERT(StackHandlerConstants::kSize == 3 * kPointerSize);
+  STATIC_ASSERT(StackHandlerConstants::kSize == 1 * kPointerSize);
   STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0);
-  STATIC_ASSERT(StackHandlerConstants::kStateOffset == 1 * kPointerSize);
-  STATIC_ASSERT(StackHandlerConstants::kContextOffset == 2 * kPointerSize);
-
-  // We will build up the handler from the bottom by pushing on the stack.
-  // First push the context.
-  if (kind == StackHandler::JS_ENTRY) {
-    Push(Smi::FromInt(0));  // No context.
-  } else {
-    Push(rsi);
-  }
-
-  // Push the index.
-  Push(Immediate(handler_index));
 
   // Link the current handler as the next handler.
   ExternalReference handler_address(Isolate::kHandlerAddress, isolate());
   Push(ExternalOperand(handler_address));
+
   // Set this new handler as the current one.
   movp(ExternalOperand(handler_address), rsp);
 }
 
 
-void MacroAssembler::PopTryHandler() {
+void MacroAssembler::PopStackHandler() {
   STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0);
   ExternalReference handler_address(Isolate::kHandlerAddress, isolate());
   Pop(ExternalOperand(handler_address));
   addp(rsp, Immediate(StackHandlerConstants::kSize - kPointerSize));
 }
 
 
 void MacroAssembler::Ret() {
   ret(0);
 }
@@ skipping 2056 matching lines @@
   if (mag.shift > 0) sarl(rdx, Immediate(mag.shift));
   movl(rax, dividend);
   shrl(rax, Immediate(31));
   addl(rdx, rax);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64