Method compileVectorShiftOp

lib/llvm/compiler.cpp:4854–4864

  }
  template <typename Func>
  void compileVectorShiftOp(LLVM::Type VectorTy, Func &&Op) noexcept {
    const bool Trunc = VectorTy.getElementType().getIntegerBitWidth() < 32;
    const uint32_t Mask = VectorTy.getElementType().getIntegerBitWidth() - 1;
    auto N = Builder.createAnd(stackPop(), LLContext.getInt32(Mask));
    auto RHS = Builder.createVectorSplat(
        VectorTy.getVectorSize(),
        Trunc ? Builder.createTrunc(N, VectorTy.getElementType())
              : Builder.createZExtOrTrunc(N, VectorTy.getElementType()));
    auto LHS = Builder.createBitCast(stackPop(), VectorTy);
    stackPush(Builder.createBitCast(Op(LHS, RHS), Context.Int64x2Ty));
  }
  void compileVectorShl(LLVM::Type VectorTy) noexcept {
    compileVectorShiftOp(VectorTy, [this](auto LHS, auto RHS) noexcept {
      return Builder.createShl(LHS, RHS);