// Copyright 2015 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/execution/isolate.h"
#include "src/objects/objects-inl.h"

using namespace v8::internal;

static void* ToWaitLocation(Tagged<JSArrayBuffer> array_buffer, size_t addr)
{
  return static_cast<uint8_t*>(array_buffer->backing_store()) + addr;
}

void WaitSync(Isolate* isolate, Handle<JSArrayBuffer> array_buffer, size_t addr, int64_t value)
{
  void* wait_location = ToWaitLocation(*array_buffer, addr);
  std::atomic<int64_t>* p = reinterpret_cast<std::atomic<int64_t>*>(wait_location);
  p->load();
}


-----------------------------------------------------------------------------------------
Disassembly of section .text._Z8WaitSyncPN2v88internal7IsolateENS0_6HandleINS0_13JSArrayBufferEEEjx:

00000000 <_Z8WaitSyncPN2v88internal7IsolateENS0_6HandleINS0_13JSArrayBufferEEEjx>:
{
  return static_cast<uint8_t*>(array_buffer->backing_store()) + addr;
}

void WaitSync(Isolate* isolate, Handle<JSArrayBuffer> array_buffer, size_t addr, int64_t value)
{
   0:	e52db004 	push	{fp}		@ (str fp, [sp, #-4]!)
   4:	e28db000 	add	fp, sp, #0
   8:	e5913000 	ldr	r3, [r1]
   c:	e5933017 	ldr	r3, [r3, #23]
  10:	f57ff05b 	dmb	ish
  14:	e18320d2 	ldrd	r2, [r3, r2]
  18:	f57ff05b 	dmb	ish
  void* wait_location = ToWaitLocation(*array_buffer, addr);
  std::atomic<int64_t>* p = reinterpret_cast<std::atomic<int64_t>*>(wait_location);
  p->load();
}
  1c:	e28bd000 	add	sp, fp, #0
  20:	e49db004 	pop	{fp}		@ (ldr fp, [sp], #4)
  24:	e12fff1e 	bx	lr