C++ (Cpp) cross_trace_regs_resumed Exemples

Exemple #1

Fichier : irlower-resumable.cpp Projet : smcshaner/hhvm

void cgContEnter(IRLS& env, const IRInstruction* inst) {
  auto const sp = srcLoc(env, inst, 0).reg();
  auto const fp = srcLoc(env, inst, 1).reg();
  auto const genFP = srcLoc(env, inst, 2).reg();
  auto const target = srcLoc(env, inst, 3).reg();

  auto const extra = inst->extra<ContEnter>();
  auto const spOff = extra->spOffset;
  auto const returnOff = extra->returnBCOffset;

  auto& v = vmain(env);

  auto const next = v.makeBlock();

  v << store{fp, genFP[AROFF(m_sfp)]};
  v << storeli{returnOff, genFP[AROFF(m_soff)]};

  v << copy{genFP, fp};
  auto const sync_sp = v.makeReg();
  v << lea{sp[cellsToBytes(spOff.offset)], sync_sp};
  v << syncvmsp{sync_sp};

  v << contenter{fp, target, cross_trace_regs_resumed(),
                 {next, label(env, inst->taken())}};
  v = next;

  auto const dst = dstLoc(env, inst, 0);
  auto const type = inst->dst()->type();
  if (!type.admitsSingleVal()) {
    v << defvmretdata{dst.reg(0)};
  }
  if (type.needsReg()) {
    v << defvmrettype{dst.reg(1)};
  }
}

Exemple #2

Fichier : irlower-resumable.cpp Projet : Enkhjargal/hhvm

void cgContEnter(IRLS& env, const IRInstruction* inst) {
  auto const sp = srcLoc(env, inst, 0).reg();
  auto const fp = srcLoc(env, inst, 1).reg();
  auto const genFP = srcLoc(env, inst, 2).reg();
  auto const target = srcLoc(env, inst, 3).reg();

  auto const extra = inst->extra<ContEnter>();
  auto const spOff = extra->spOffset;
  auto const returnOff = extra->returnBCOffset;

  auto& v = vmain(env);

  auto const next = v.makeBlock();

  v << store{fp, genFP[AROFF(m_sfp)]};
  v << storeli{returnOff, genFP[AROFF(m_soff)]};

  v << copy{genFP, fp};
  auto const sync_sp = v.makeReg();
  v << lea{sp[cellsToBytes(spOff.offset)], sync_sp};
  v << syncvmsp{sync_sp};

  v << contenter{fp, target, cross_trace_regs_resumed(),
                 {next, label(env, inst->taken())}};
  env.catch_calls[inst->taken()] = CatchCall::PHP;
  v = next;
}