[fullcodegen] Remove exception handling support.

src/full-codegen/ppc/full-codegen-ppc.cc

 // Copyright 2014 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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/full-codegen/full-codegen.h"
 #include "src/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
@@ skipping 3429 matching lines @@
     // code.  Fetch it from the context.
     __ LoadP(ip, ContextMemOperand(cp, Context::CLOSURE_INDEX));
   } else {
     DCHECK(closure_scope->is_function_scope());
     __ LoadP(ip, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
   }
   PushOperand(ip);
 }
 
 
-// ----------------------------------------------------------------------------
-// Non-local control flow support.
-
-void FullCodeGenerator::EnterFinallyBlock() {
-  DCHECK(!result_register().is(r4));
-  // Store pending message while executing finally block.
-  ExternalReference pending_message_obj =
-      ExternalReference::address_of_pending_message_obj(isolate());
-  __ mov(ip, Operand(pending_message_obj));
-  __ LoadP(r4, MemOperand(ip));
-  PushOperand(r4);
-
-  ClearPendingMessage();
-}
-
-
-void FullCodeGenerator::ExitFinallyBlock() {
-  DCHECK(!result_register().is(r4));
-  // Restore pending message from stack.
-  PopOperand(r4);
-  ExternalReference pending_message_obj =
-      ExternalReference::address_of_pending_message_obj(isolate());
-  __ mov(ip, Operand(pending_message_obj));
-  __ StoreP(r4, MemOperand(ip));
-}
-
-
-void FullCodeGenerator::ClearPendingMessage() {
-  DCHECK(!result_register().is(r4));
-  ExternalReference pending_message_obj =
-      ExternalReference::address_of_pending_message_obj(isolate());
-  __ LoadRoot(r4, Heap::kTheHoleValueRootIndex);
-  __ mov(ip, Operand(pending_message_obj));
-  __ StoreP(r4, MemOperand(ip));
-}
-
-
-void FullCodeGenerator::DeferredCommands::EmitCommands() {
-  DCHECK(!result_register().is(r4));
-  // Restore the accumulator (r3) and token (r4).
-  __ Pop(r4, result_register());
-  for (DeferredCommand cmd : commands_) {
-    Label skip;
-    __ CmpSmiLiteral(r4, Smi::FromInt(cmd.token), r0);
-    __ bne(&skip);
-    switch (cmd.command) {
-      case kReturn:
-        codegen_->EmitUnwindAndReturn();
-        break;
-      case kThrow:
-        __ Push(result_register());
-        __ CallRuntime(Runtime::kReThrow);
-        break;
-      case kContinue:
-        codegen_->EmitContinue(cmd.target);
-        break;
-      case kBreak:
-        codegen_->EmitBreak(cmd.target);
-        break;
-    }
-    __ bind(&skip);
-  }
-}
-
 #undef __
 
 
 void BackEdgeTable::PatchAt(Code* unoptimized_code, Address pc,
                             BackEdgeState target_state,
                             Code* replacement_code) {
   Address mov_address = Assembler::target_address_from_return_address(pc);
   Address cmp_address = mov_address - 2 * Assembler::kInstrSize;
   Isolate* isolate = unoptimized_code->GetIsolate();
   CodePatcher patcher(isolate, cmp_address, 1);
@@ skipping 52 matching lines @@
 
   DCHECK(Assembler::IsCrSet(Assembler::instr_at(cmp_address)));
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OnStackReplacement()->entry());
   return ON_STACK_REPLACEMENT;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC