X87: Switch full-codegen from StackHandlers to handler table.

src/x87/macro-assembler-x87.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_X87
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 969 matching lines @@
 
 
 void MacroAssembler::LeaveApiExitFrame(bool restore_context) {
   mov(esp, ebp);
   pop(ebp);
 
   LeaveExitFrameEpilogue(restore_context);
 }
 
 
-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(Immediate(Smi::FromInt(0)));  // No context.
-  } else {
-    push(esi);
-  }
-
-  // Push the index.
-  push(Immediate(handler_index));
 
   // Link the current handler as the next handler.
   ExternalReference handler_address(Isolate::kHandlerAddress, isolate());
   push(Operand::StaticVariable(handler_address));
+
   // Set this new handler as the current one.
   mov(Operand::StaticVariable(handler_address), esp);
 }
 
 
-void MacroAssembler::PopTryHandler() {
+void MacroAssembler::PopStackHandler() {
   STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0);
   ExternalReference handler_address(Isolate::kHandlerAddress, isolate());
   pop(Operand::StaticVariable(handler_address));
   add(esp, Immediate(StackHandlerConstants::kSize - kPointerSize));
 }
 
 
 void MacroAssembler::CheckAccessGlobalProxy(Register holder_reg,
                                             Register scratch1,
                                             Register scratch2,
@@ skipping 2087 matching lines @@
   if (mag.shift > 0) sar(edx, mag.shift);
   mov(eax, dividend);
   shr(eax, 31);
   add(edx, eax);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X87