[turbofan] add gap move verifier

src/compiler/register-allocator.cc

Index: src/compiler/register-allocator.cc
diff --git a/src/compiler/register-allocator.cc b/src/compiler/register-allocator.cc
index 0069df8834b1096ee9ab980693298efd97fc4ea2..23a7df6e9c0b839654a85aab18e455466e555c85 100644
--- a/src/compiler/register-allocator.cc
+++ b/src/compiler/register-allocator.cc
@@ -5,7 +5,6 @@
 #include "src/compiler/linkage.h"
 #include "src/compiler/pipeline-statistics.h"
 #include "src/compiler/register-allocator.h"
-#include "src/compiler/register-allocator-verifier.h"
 #include "src/string-stream.h"
 
 namespace v8 {
@@ -1117,16 +1116,7 @@ void RegisterAllocator::ResolvePhis(const InstructionBlock* block) {
 }
 
 
-bool RegisterAllocator::Allocate(PipelineStatistics* stats,
-                                 VerificationType verification_type) {
-  SmartPointer<Zone> verifier_zone;
-  RegisterAllocatorVerifier* verifier = NULL;
-  if (verification_type == kVerifyAssignment) {
-    // Don't track usage for this zone in compiler stats.
-    verifier_zone.Reset(new Zone(local_zone()->isolate()));
-    verifier = new (verifier_zone.get())
-        RegisterAllocatorVerifier(verifier_zone.get(), code());
-  }
+bool RegisterAllocator::Allocate(PipelineStatistics* stats) {
   assigned_registers_ = new (code_zone())
       BitVector(config()->num_general_registers(), code_zone());
   assigned_double_registers_ = new (code_zone())
@@ -1168,9 +1158,6 @@ bool RegisterAllocator::Allocate(PipelineStatistics* stats,
   }
   frame()->SetAllocatedRegisters(assigned_registers_);
   frame()->SetAllocatedDoubleRegisters(assigned_double_registers_);
-  if (verifier != NULL) {
-    verifier->VerifyAssignment();
-  }
   return true;
 }