[turbofan] Unify referencing of stack slots

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index a1b82318c2753ec883accf8abd7d425643a42fcc..e9545b8f3eff884902f8dcf7f21af3656dee4af6 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -259,10 +259,17 @@ class PipelineData {
   }
 
   void InitializeRegisterAllocationData(const RegisterConfiguration* config,
+                                        CallDescriptor* descriptor,
                                         const char* debug_name) {
     DCHECK(frame_ == nullptr);
     DCHECK(register_allocation_data_ == nullptr);
-    frame_ = new (instruction_zone()) Frame();
+    int fixed_frame_size = 0;
+    if (descriptor != nullptr) {
+      fixed_frame_size = (descriptor->kind() == CallDescriptor::kCallAddress)
+                             ? StandardFrameConstants::kFixedSlotCountAboveFp
+                             : StandardFrameConstants::kFixedSlotCount;
+    }
+    frame_ = new (instruction_zone()) Frame(fixed_frame_size);
     register_allocation_data_ = new (register_allocation_zone())
         RegisterAllocationData(config, register_allocation_zone(), frame(),
                                sequence(), debug_name);
@@ -1190,7 +1197,7 @@ bool Pipeline::AllocateRegistersForTesting(const RegisterConfiguration* config,
   PipelineData data(&zone_pool, &info, sequence);
   Pipeline pipeline(&info);
   pipeline.data_ = &data;
-  pipeline.AllocateRegisters(config, run_verifier);
+  pipeline.AllocateRegisters(config, nullptr, run_verifier);
   return !data.compilation_failed();
 }
 
@@ -1234,7 +1241,8 @@ Handle<Code> Pipeline::ScheduleAndGenerateCode(
 
   bool run_verifier = FLAG_turbo_verify_allocation;
   // Allocate registers.
-  AllocateRegisters(RegisterConfiguration::ArchDefault(), run_verifier);
+  AllocateRegisters(RegisterConfiguration::ArchDefault(), call_descriptor,
+                    run_verifier);
   if (data->compilation_failed()) {
     info()->AbortOptimization(kNotEnoughVirtualRegistersRegalloc);
     return Handle<Code>();
@@ -1293,6 +1301,7 @@ Handle<Code> Pipeline::ScheduleAndGenerateCode(
 
 
 void Pipeline::AllocateRegisters(const RegisterConfiguration* config,
+                                 CallDescriptor* descriptor,
                                  bool run_verifier) {
   PipelineData* data = this->data_;
 
@@ -1310,7 +1319,7 @@ void Pipeline::AllocateRegisters(const RegisterConfiguration* config,
   debug_name = GetDebugName(data->info());
 #endif
 
-  data->InitializeRegisterAllocationData(config, debug_name.get());
+  data->InitializeRegisterAllocationData(config, descriptor, debug_name.get());
   if (info()->is_osr()) {
     OsrHelper osr_helper(info());
     osr_helper.SetupFrame(data->frame());