Drop computed handler count and index from AST.

src/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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 84 matching lines @@
 //   o cp: our context
 //   o fp: our caller's frame pointer (aka r31)
 //   o sp: stack pointer
 //   o lr: return address
 //   o ip: our own function entry (required by the prologue)
 //
 // The function builds a JS frame.  Please see JavaScriptFrameConstants in
 // frames-ppc.h for its layout.
 void FullCodeGenerator::Generate() {
   CompilationInfo* info = info_;
-  handler_table_ =
-      Handle<HandlerTable>::cast(isolate()->factory()->NewFixedArray(
-          HandlerTable::LengthForRange(function()->handler_count()), TENURED));
-
   profiling_counter_ = isolate()->factory()->NewCell(
       Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate()));
   SetFunctionPosition(function());
   Comment cmnt(masm_, "[ function compiled by full code generator");
 
   ProfileEntryHookStub::MaybeCallEntryHook(masm_);
 
 #ifdef DEBUG
   if (strlen(FLAG_stop_at) > 0 &&
       info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) {
@@ skipping 2038 matching lines @@
       __ LoadRoot(load_name, Heap::kthrow_stringRootIndex);  // "throw"
       __ LoadP(r6, MemOperand(sp, 1 * kPointerSize));        // iter
       __ Push(load_name, r6, r3);  // "throw", iter, except
       __ b(&l_call);
 
       // try { received = %yield result }
       // Shuffle the received result above a try handler and yield it without
       // re-boxing.
       __ bind(&l_try);
       __ pop(r3);  // result
-      EnterTryBlock(expr->index(), &l_catch);
+      int handler_index = NewHandlerTableEntry();
+      EnterTryBlock(handler_index, &l_catch);
       const int try_block_size = TryCatch::kElementCount * kPointerSize;
       __ push(r3);  // result
       __ b(&l_suspend);
       __ bind(&l_continuation);
       __ b(&l_resume);
       __ bind(&l_suspend);
       const int generator_object_depth = kPointerSize + try_block_size;
       __ LoadP(r3, MemOperand(sp, generator_object_depth));
       __ push(r3);  // g
-      __ Push(Smi::FromInt(expr->index()));  // handler-index
+      __ Push(Smi::FromInt(handler_index));  // handler-index
       DCHECK(l_continuation.pos() > 0 && Smi::IsValid(l_continuation.pos()));
       __ LoadSmiLiteral(r4, Smi::FromInt(l_continuation.pos()));
       __ StoreP(r4, FieldMemOperand(r3, JSGeneratorObject::kContinuationOffset),
                 r0);
       __ StoreP(cp, FieldMemOperand(r3, JSGeneratorObject::kContextOffset), r0);
       __ mr(r4, cp);
       __ RecordWriteField(r3, JSGeneratorObject::kContextOffset, r4, r5,
                           kLRHasBeenSaved, kDontSaveFPRegs);
       __ CallRuntime(Runtime::kSuspendJSGeneratorObject, 2);
       __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
       __ pop(r3);  // result
       EmitReturnSequence();
       __ bind(&l_resume);  // received in r3
-      ExitTryBlock(expr->index());
+      ExitTryBlock(handler_index);
 
       // receiver = iter; f = 'next'; arg = received;
       __ bind(&l_next);
 
       __ LoadRoot(load_name, Heap::knext_stringRootIndex);  // "next"
       __ LoadP(r6, MemOperand(sp, 1 * kPointerSize));       // iter
       __ Push(load_name, r6, r3);  // "next", iter, received
 
       // result = receiver[f](arg);
       __ bind(&l_call);
@@ skipping 3344 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC