[turbofan] Abort compilation when the max deoptimization table size is exceeded.

src/compiler/ppc/code-generator-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/compiler/code-generator.h"
 
 #include "src/ast/scopes.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 709 matching lines @@
            MemOperand(fp, ArgumentsAdaptorFrameConstants::kLengthOffset));
   __ SmiUntag(caller_args_count_reg);
 
   ParameterCount callee_args_count(args_reg);
   __ PrepareForTailCall(callee_args_count, caller_args_count_reg, scratch2,
                         scratch3);
   __ bind(&done);
 }
 
 // Assembles an instruction after register allocation, producing machine code.
-void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
+CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
+    Instruction* instr) {
   PPCOperandConverter i(this, instr);
   ArchOpcode opcode = ArchOpcodeField::decode(instr->opcode());
 
   switch (opcode) {
     case kArchCallCodeObject: {
       v8::internal::Assembler::BlockTrampolinePoolScope block_trampoline_pool(
           masm());
       EnsureSpaceForLazyDeopt();
       if (HasRegisterInput(instr, 0)) {
         __ addi(ip, i.InputRegister(0),
@@ skipping 120 matching lines @@
     case kArchNop:
     case kArchThrowTerminator:
       // don't emit code for nops.
       DCHECK_EQ(LeaveRC, i.OutputRCBit());
       break;
     case kArchDeoptimize: {
       int deopt_state_id =
           BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore());
       Deoptimizer::BailoutType bailout_type =
           Deoptimizer::BailoutType(MiscField::decode(instr->opcode()));
-      AssembleDeoptimizerCall(deopt_state_id, bailout_type);
+      CodeGenResult result =
+          AssembleDeoptimizerCall(deopt_state_id, bailout_type);
+      if (result != kSuccess) return result;
       break;
     }
     case kArchRet:
       AssembleReturn();
       DCHECK_EQ(LeaveRC, i.OutputRCBit());
       break;
     case kArchStackPointer:
       __ mr(i.OutputRegister(), sp);
       DCHECK_EQ(LeaveRC, i.OutputRCBit());
       break;
@@ skipping 722 matching lines @@
     case kAtomicLoadUint16:
       ASSEMBLE_ATOMIC_LOAD_INTEGER(lhz, lhzx);
       break;
     case kAtomicLoadWord32:
       ASSEMBLE_ATOMIC_LOAD_INTEGER(lwz, lwzx);
       break;
     default:
       UNREACHABLE();
       break;
   }
+  return kSuccess;
 }  // NOLINT(readability/fn_size)
 
 
 // Assembles branches after an instruction.
 void CodeGenerator::AssembleArchBranch(Instruction* instr, BranchInfo* branch) {
   PPCOperandConverter i(this, instr);
   Label* tlabel = branch->true_label;
   Label* flabel = branch->false_label;
   ArchOpcode op = instr->arch_opcode();
   FlagsCondition condition = branch->condition;
@@ skipping 99 matching lines @@
   }
   Label* const table = AddJumpTable(cases, case_count);
   __ Cmpli(input, Operand(case_count), r0);
   __ bge(GetLabel(i.InputRpo(1)));
   __ mov_label_addr(kScratchReg, table);
   __ ShiftLeftImm(r0, input, Operand(kPointerSizeLog2));
   __ LoadPX(kScratchReg, MemOperand(kScratchReg, r0));
   __ Jump(kScratchReg);
 }
 
-
-void CodeGenerator::AssembleDeoptimizerCall(
+CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall(
     int deoptimization_id, Deoptimizer::BailoutType bailout_type) {
   Address deopt_entry = Deoptimizer::GetDeoptimizationEntry(
       isolate(), deoptimization_id, bailout_type);
   // TODO(turbofan): We should be able to generate better code by sharing the
   // actual final call site and just bl'ing to it here, similar to what we do
   // in the lithium backend.
+  if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts;
   __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY);
+  return kSuccess;
 }
 
 void CodeGenerator::FinishFrame(Frame* frame) {
   CallDescriptor* descriptor = linkage()->GetIncomingDescriptor();
   const RegList double_saves = descriptor->CalleeSavedFPRegisters();
 
   // Save callee-saved Double registers.
   if (double_saves != 0) {
     frame->AlignSavedCalleeRegisterSlots();
     DCHECK(kNumCalleeSavedDoubles ==
@@ skipping 331 matching lines @@
       padding_size -= v8::internal::Assembler::kInstrSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8