[turbofan] Introduce DeoptimizeIf And DeoptimizeUnless common operators.

src/compiler/arm/code-generator-arm.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/arm/macro-assembler-arm.h"
 #include "src/ast/scopes.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
@@ skipping 36 matching lines @@
     return ToFloat64Register(instr_->InputAt(index));
   }
 
   LowDwVfpRegister ToFloat64Register(InstructionOperand* op) {
     return LowDwVfpRegister::from_code(ToDoubleRegister(op).code());
   }
 
   SBit OutputSBit() const {
     switch (instr_->flags_mode()) {
       case kFlags_branch:
+      case kFlags_deoptimize:
       case kFlags_set:
         return SetCC;
       case kFlags_none:
         return LeaveCC;
     }
     UNREACHABLE();
     return LeaveCC;
   }
 
   Operand InputImmediate(size_t index) {
@@ skipping 335 matching lines @@
     __ ldr(fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
   }
   frame_access_state()->SetFrameAccessToSP();
 }
 
 
 // Assembles an instruction after register allocation, producing machine code.
 void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
   ArmOperandConverter i(this, instr);
 
-  masm()->MaybeCheckConstPool();
+  __ MaybeCheckConstPool();
 
   switch (ArchOpcodeField::decode(instr->opcode())) {
     case kArchCallCodeObject: {
       EnsureSpaceForLazyDeopt();
       if (instr->InputAt(0)->IsImmediate()) {
         __ Call(Handle<Code>::cast(i.InputHeapObject(0)),
                 RelocInfo::CODE_TARGET);
       } else {
         __ add(ip, i.InputRegister(0),
                Operand(Code::kHeaderSize - kHeapObjectTag));
@@ skipping 725 matching lines @@
   for (size_t index = 0; index < case_count; ++index) {
     __ b(GetLabel(i.InputRpo(index + 2)));
   }
 }
 
 
 void 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.
   __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY);
+  __ CheckConstPool(false, false);
 }
 
 
 void CodeGenerator::AssemblePrologue() {
   CallDescriptor* descriptor = linkage()->GetIncomingDescriptor();
   if (descriptor->IsCFunctionCall()) {
     if (FLAG_enable_embedded_constant_pool) {
       __ Push(lr, fp, pp);
       // Adjust FP to point to saved FP.
       __ sub(fp, sp, Operand(StandardFrameConstants::kConstantPoolOffset));
@@ skipping 298 matching lines @@
       padding_size -= v8::internal::Assembler::kInstrSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8