Method checkStop

lib/llvm/compiler.cpp:5691–5708

  }

  void checkStop() noexcept {
    if (!Interruptible) {
      return;
    }
    auto NotStopBB = LLVM::BasicBlock::create(LLContext, F.Fn, "NotStop");
    auto StopToken = Builder.createAtomicRMW(
        LLVMAtomicRMWBinOpXchg, Context.getStopToken(Builder, ExecCtx),
        LLContext.getInt32(0), LLVMAtomicOrderingMonotonic);
#if LLVM_VERSION_MAJOR >= 13
    StopToken.setAlignment(32);
#endif
    auto NotStop = Builder.createLikely(
        Builder.createICmpEQ(StopToken, LLContext.getInt32(0)));
    Builder.createCondBr(NotStop, NotStopBB,
                         getTrapBB(ErrCode::Value::Interrupted));

    Builder.positionAtEnd(NotStopBB);
  }

  void setUnreachable() noexcept {
    if (ControlStack.empty()) {