/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "jit/loong64/Architecture-loong64.h"

#include "jit/FlushICache.h"  // js::jit::FlushICache
#include "jit/RegisterSets.h"
#include "jit/Simulator.h"

namespace js {
namespace jit {

Registers::Code Registers::FromName(const char* name) {
  for (size_t i = 0; i < Total; i++) {
    if (strcmp(GetName(i), name) == 0) {
      return Code(i);
    }
  }

  return Invalid;
}

FloatRegisters::Code FloatRegisters::FromName(const char* name) {
  for (size_t i = 0; i < Total; i++) {
    if (strcmp(GetName(i), name) == 0) {
      return Code(i);
    }
  }

  return Invalid;
}

FloatRegisterSet FloatRegister::ReduceSetForPush(const FloatRegisterSet& s) {
#ifdef ENABLE_WASM_SIMD
#  error "Needs more careful logic if SIMD is enabled"
#endif

  LiveFloatRegisterSet ret;
  for (FloatRegisterIterator iter(s); iter.more(); ++iter) {
    ret.addUnchecked(FromCode((*iter).encoding()));
  }
  return ret.set();
}

uint32_t FloatRegister::GetPushSizeInBytes(const FloatRegisterSet& s) {
#ifdef ENABLE_WASM_SIMD
#  error "Needs more careful logic if SIMD is enabled"
#endif

  return s.size() * sizeof(double);
}

uint32_t FloatRegister::getRegisterDumpOffsetInBytes() {
#ifdef ENABLE_WASM_SIMD
#  error "Needs more careful logic if SIMD is enabled"
#endif

  return encoding() * sizeof(double);
}

bool CPUFlagsHaveBeenComputed() {
  // TODO(loong64): Add CPU flags support.
  return true;
}

uint32_t GetLOONG64Flags() { return 0; }

void FlushICache(void* code, size_t size) {
#if defined(JS_SIMULATOR)
  js::jit::SimulatorProcess::FlushICache(code, size);

#elif defined(__GNUC__)
  intptr_t end = reinterpret_cast<intptr_t>(code) + size;
  __builtin___clear_cache(reinterpret_cast<char*>(code),
                          reinterpret_cast<char*>(end));

#else
  _flush_cache(reinterpret_cast<char*>(code), size, BCACHE);

#endif
}

}  // namespace jit
}  // namespace js