Switch full-codegen from StackHandlers to handler table.

src/arm/macro-assembler-arm.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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
@@ skipping 1378 matching lines @@
 
 void MacroAssembler::DebugBreak() {
   mov(r0, Operand::Zero());
   mov(r1, Operand(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() {
   // Adjust this code if not the case.
-  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 r0-r4, r5-r6 are available.
-  // We will build up the handler from the bottom by pushing on the stack.
-  // Set up the the index (r6) for pushing.
-  mov(r6, Operand(handler_index));
-
-  // Push the context and index.
-  if (kind == StackHandler::JS_ENTRY) {
-    mov(cp, Operand(Smi::FromInt(0)));  // Indicates no context.
-    stm(db_w, sp, r6.bit() | cp.bit());
-  } else {
-    stm(db_w, sp, r6.bit() | cp.bit());
-  }
 
   // Link the current handler as the next handler.
   mov(r6, Operand(ExternalReference(Isolate::kHandlerAddress, isolate())));
   ldr(r5, MemOperand(r6));
   push(r5);
+
   // Set this new handler as the current one.
   str(sp, MemOperand(r6));
 }
 
 
-void MacroAssembler::PopTryHandler() {
+void MacroAssembler::PopStackHandler() {
   STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0);
   pop(r1);
   mov(ip, Operand(ExternalReference(Isolate::kHandlerAddress, isolate())));
   add(sp, sp, Operand(StackHandlerConstants::kSize - kPointerSize));
   str(r1, MemOperand(ip));
 }
 
 
 void MacroAssembler::CheckAccessGlobalProxy(Register holder_reg,
                                             Register scratch,
@@ skipping 2451 matching lines @@
     }
   }
   if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
   add(result, result, Operand(dividend, LSR, 31));
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM