[turbofan] Add general support for sp-based frame access

src/compiler/arm64/code-generator-arm64.cc

Index: src/compiler/arm64/code-generator-arm64.cc
diff --git a/src/compiler/arm64/code-generator-arm64.cc b/src/compiler/arm64/code-generator-arm64.cc
index ee1315989e0ad1e36458de31757b7e854b981177..b03eb5520ed178011ea3db09158164597e514aee 100644
--- a/src/compiler/arm64/code-generator-arm64.cc
+++ b/src/compiler/arm64/code-generator-arm64.cc
@@ -205,11 +205,13 @@ class Arm64OperandConverter final : public InstructionOperandConverter {
   MemOperand ToMemOperand(InstructionOperand* op, MacroAssembler* masm) const {
     DCHECK(op != NULL);
     DCHECK(op->IsStackSlot() || op->IsDoubleStackSlot());
-    FrameOffset offset =
-        linkage()->GetFrameOffset(AllocatedOperand::cast(op)->index(), frame());
+    FrameOffset offset = linkage()->GetFrameOffset(
+        AllocatedOperand::cast(op)->index(), frame_access_state());
     if (offset.from_frame_pointer()) {
       int from_sp =
-          offset.offset() + (frame()->GetSpToFpSlotCount() * kPointerSize);
+          offset.offset() +
+          ((frame()->GetSpToFpSlotCount() + frame_access_state()->sp_delta()) *
+           kPointerSize);
       // Convert FP-offsets to SP-offsets if it results in better code.
       if (Assembler::IsImmLSUnscaled(from_sp) ||
           Assembler::IsImmLSScaled(from_sp, LSDoubleWord)) {
@@ -477,6 +479,7 @@ void CodeGenerator::AssembleDeconstructActivationRecord(int stack_param_delta) {
     }
     __ Pop(fp, lr);
   }
+  frame_access_state()->UseDefaultFrameAccess();
 }
 
 
@@ -490,8 +493,10 @@ void CodeGenerator::AssemblePrepareTailCall(int stack_param_delta) {
     total_discarded_slots -= stack_param_delta;
     if (total_discarded_slots < 0) {
       __ Sub(jssp, jssp, Operand(-total_discarded_slots * kPointerSize));
+      frame_access_state()->IncreaseSPDelta(-total_discarded_slots);
     }
   }
+  frame_access_state()->UseSPToAccessFrame();
 }
 
 
@@ -510,7 +515,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
         __ Add(target, target, Code::kHeaderSize - kHeapObjectTag);
         __ Call(target);
       }
-      frame()->ClearOutgoingParameterSlots();
+      frame_access_state()->ClearSPDelta();
       RecordCallPosition(instr);
       break;
     }
@@ -525,7 +530,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
         __ Add(target, target, Code::kHeaderSize - kHeapObjectTag);
         __ Jump(target);
       }
-      frame()->ClearOutgoingParameterSlots();
+      frame_access_state()->ClearSPDelta();
       break;
     }
     case kArchCallJSFunction: {
@@ -541,7 +546,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       }
       __ Ldr(x10, FieldMemOperand(func, JSFunction::kCodeEntryOffset));
       __ Call(x10);
-      frame()->ClearOutgoingParameterSlots();
+      frame_access_state()->ClearSPDelta();
       RecordCallPosition(instr);
       break;
     }
@@ -559,7 +564,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       AssembleDeconstructActivationRecord(stack_param_delta);
       __ Ldr(x10, FieldMemOperand(func, JSFunction::kCodeEntryOffset));
       __ Jump(x10);
-      frame()->ClearOutgoingParameterSlots();
+      frame_access_state()->ClearSPDelta();
       break;
     }
     case kArchLazyBailout: {
@@ -587,7 +592,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       }
       // CallCFunction only supports register arguments so we never need to call
       // frame()->ClearOutgoingParameterSlots() here.
-      DCHECK(frame()->GetOutgoingParameterSlotCount() == 0);
+      DCHECK(frame_access_state()->sp_delta() == 0);
       break;
     }
     case kArchJmp:
@@ -873,7 +878,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       break;
     case kArm64ClaimForCallArguments: {
       __ Claim(i.InputInt32(0));
-      frame()->AllocateOutgoingParameterSlots(i.InputInt32(0));
+      frame_access_state()->IncreaseSPDelta(i.InputInt32(0));
       break;
     }
     case kArm64Poke: {
@@ -1283,12 +1288,13 @@ void CodeGenerator::AssemblePrologue() {
     CompilationInfo* info = this->info();
     __ SetStackPointer(jssp);
     __ Prologue(info->IsCodePreAgingActive());
-  } else if (needs_frame_) {
+  } else if (frame()->needs_frame()) {
     __ SetStackPointer(jssp);
     __ StubPrologue();
   } else {
     frame()->SetElidedFrameSizeInSlots(0);
   }
+  frame_access_state()->UseDefaultFrameAccess();
 
   int stack_shrink_slots = frame()->GetSpillSlotCount();
   if (info()->is_osr()) {
@@ -1358,7 +1364,7 @@ void CodeGenerator::AssembleReturn() {
   if (descriptor->kind() == CallDescriptor::kCallAddress) {
     __ Mov(csp, fp);
     __ Pop(fp, lr);
-  } else if (descriptor->IsJSFunctionCall() || needs_frame_) {
+  } else if (descriptor->IsJSFunctionCall() || frame()->needs_frame()) {
     // Canonicalize JSFunction return sites for now.
     if (return_label_.is_bound()) {
       __ B(&return_label_);