Switch full-codegen from StackHandlers to handler table.

src/arm64/macro-assembler-arm64.cc

 // Copyright 2013 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_ARM64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 3020 matching lines @@
 
 void MacroAssembler::DebugBreak() {
   Mov(x0, 0);
   Mov(x1, ExternalReference(Runtime::kDebugBreak, isolate()));
   CEntryStub ces(isolate(), 1);
   DCHECK(AllowThisStubCall(&ces));
   Call(ces.GetCode(), RelocInfo::DEBUG_BREAK);
 }
 
 
-void MacroAssembler::PushTryHandler(StackHandler::Kind kind,
-                                    int handler_index) {
+void MacroAssembler::PushStackHandler() {
   DCHECK(jssp.Is(StackPointer()));
   // Adjust this code if the asserts don't hold.
-  STATIC_ASSERT(StackHandlerConstants::kSize == 3 * kPointerSize);
+  STATIC_ASSERT(StackHandlerConstants::kSize == 1 * kPointerSize);
   STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0 * kPointerSize);
-  STATIC_ASSERT(StackHandlerConstants::kStateOffset == 1 * kPointerSize);
-  STATIC_ASSERT(StackHandlerConstants::kContextOffset == 2 * kPointerSize);
 
   // For the JSEntry handler, we must preserve the live registers x0-x4.
   // (See JSEntryStub::GenerateBody().)
 
-  // Set up the index for pushing.
-  Mov(x11, handler_index);
-
-  // Push the context and state.
-  if (kind == StackHandler::JS_ENTRY) {
-    DCHECK(Smi::FromInt(0) == 0);
-    Push(xzr, x11);
-  } else {
-    Push(cp, x11);
-  }
-
   // Link the current handler as the next handler.
   Mov(x11, ExternalReference(Isolate::kHandlerAddress, isolate()));
   Ldr(x10, MemOperand(x11));
   Push(x10);
+
   // Set this new handler as the current one.
   Str(jssp, MemOperand(x11));
 }
 
 
-void MacroAssembler::PopTryHandler() {
+void MacroAssembler::PopStackHandler() {
   STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0);
   Pop(x10);
   Mov(x11, ExternalReference(Isolate::kHandlerAddress, isolate()));
   Drop(StackHandlerConstants::kSize - kXRegSize, kByteSizeInBytes);
   Str(x10, MemOperand(x11));
 }
 
 
 void MacroAssembler::Allocate(int object_size,
                               Register result,
@@ skipping 2075 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64