[turbofan] [deoptimizer] Support inlining of ES6 tail calls.

src/arm64/deoptimizer-arm64.cc

 // Copyright 2013 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/arm64/frames-arm64.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
 #include "src/register-configuration.h"
 #include "src/safepoint-table.h"
@@ skipping 108 matching lines @@
   // Get the bailout id from the stack.
   Register bailout_id = x2;
   __ Peek(bailout_id, kSavedRegistersAreaSize);
 
   Register code_object = x3;
   Register fp_to_sp = x4;
   // Get the address of the location in the code object. This is the return
   // address for lazy deoptimization.
   __ Mov(code_object, lr);
   // Compute the fp-to-sp delta, and correct one word for bailout id.
-  __ Add(fp_to_sp, masm()->StackPointer(),
+  __ Add(fp_to_sp, __ StackPointer(),
          kSavedRegistersAreaSize + (1 * kPointerSize));
   __ Sub(fp_to_sp, fp, fp_to_sp);
 
   // Allocate a new deoptimizer object.
   __ Mov(x0, 0);
   Label context_check;
   __ Ldr(x1, MemOperand(fp, CommonFrameConstants::kContextOrFrameTypeOffset));
   __ JumpIfSmi(x1, &context_check);
   __ Ldr(x0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
   __ bind(&context_check);
@@ skipping 62 matching lines @@
   __ Push(x0);  // Preserve deoptimizer object across call.
 
   {
     // Call Deoptimizer::ComputeOutputFrames().
     AllowExternalCallThatCantCauseGC scope(masm());
     __ CallCFunction(
         ExternalReference::compute_output_frames_function(isolate()), 1);
   }
   __ Pop(x4);  // Restore deoptimizer object (class Deoptimizer).
 
+  __ Ldr(__ StackPointer(),
+         MemOperand(x4, Deoptimizer::caller_frame_top_offset()));
+
   // Replace the current (input) frame with the output frames.
   Label outer_push_loop, inner_push_loop,
       outer_loop_header, inner_loop_header;
   __ Ldrsw(x1, MemOperand(x4, Deoptimizer::output_count_offset()));
   __ Ldr(x0, MemOperand(x4, Deoptimizer::output_offset()));
   __ Add(x1, x0, Operand(x1, LSL, kPointerSizeLog2));
   __ B(&outer_loop_header);
 
   __ Bind(&outer_push_loop);
   Register current_frame = x2;
@@ skipping 113 matching lines @@
 void FrameDescription::SetCallerConstantPool(unsigned offset, intptr_t value) {
   // No embedded constant pool support.
   UNREACHABLE();
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8