gcc/testsuite/g++.dg/pr64688.C

   1 // { dg-do compile { target i?86-*-* x86_64-*-* } }
   2 // { dg-options "-std=c++11 -O3 -march=westmere" }
   3
   4 template <typename T> struct A { typedef typename T::next type; };
   5 template <typename> struct B;
   6 template <typename T> struct N : T {};
   7 template <int N> struct C {
   8   static const int value = N;
   9   typedef C<N + 1> next;
  10 };
  11 template <typename Sequence>
  12 struct R : N<typename B<typename Sequence::tag>::template P<Sequence>> {};
  13 template <typename Base> struct O : Base {
  14   typedef typename A<typename Base::size>::type size;
  15 };
  16 template <typename = int> struct D {
  17   typedef int tag;
  18   typedef C<0> size;
  19 };
  20 template <> struct B<int> {
  21   template <typename> struct P : O<O<O<D<>>>>::size {};
  22 };
  23 template <typename> struct F;
  24 template <typename> struct G;
  25 template <typename, typename, int> struct H;
  26 template <typename Element, typename Layout> struct H<Element, Layout, 3> {};
  27 template <int, typename E, typename L, int N> unsigned char at_c(H<E, L, N>)
  28 {
  29   return 0;
  30 }
  31 template <typename> class I;
  32 template <typename> class J;
  33 template <typename> class K;
  34 template <typename, typename> struct Q;
  35 struct L {
  36   typedef Q<unsigned char, F<O<O<O<D<>>>>>> *type;
  37 };
  38 template <typename XIterator> struct M { typedef K<J<I<XIterator>>> view_t; };
  39 template <typename, typename>
  40 struct Q : H<unsigned, F<int>, R<O<O<O<D<>>>>>::value> {};
  41 template <typename Iterator> struct G<I<Iterator>> { typedef Iterator type; };
  42 template <typename> class J {
  43 public:
  44   typedef G<I<Q<unsigned, int> *>>::type x_iterator;
  45 };
  46 template <typename> class K {
  47 public:
  48   J<int>::x_iterator row_begin(int);
  49 };
  50 template <typename Op> void measure_time(Op p1) { p1(); }
  51 template <typename, typename> struct fill_nongil_t;
  52 template <typename T, typename P>
  53 struct fill_nongil_t<K<J<I<Q<T, F<O<O<O<D<>>>>>> *>>>, P> {
  54   typedef K<J<I<Q<T, F<O<O<O<D<>>>>>> *>>> View;
  55   View _v;
  56   P _p;
  57   fill_nongil_t(View, P);
  58   void operator()() {
  59     T *first = (T *)_v.row_begin(0);
  60     T last;
  61     while (first != &last) {
  62       first[0] = first[1] = at_c<1>(_p);
  63       first[2] = at_c<2>(_p);
  64       first += 3;
  65     }
  66   }
  67 };
  68 template <typename, typename> void test_fill(int) {
  69   M<L::type>::view_t __trans_tmp_1;
  70   measure_time(fill_nongil_t<K<J<I<Q<unsigned char, F<O<O<O<D<>>>>>> *>>>,
  71                              Q<unsigned char, F<O<O<O<D<>>>>>>>(
  72       __trans_tmp_1, Q<unsigned char, F<O<O<O<D<>>>>>>()));
  73 }
  74 void performance_testtest_method() { test_fill<K<int>, Q<unsigned, int>>(0); }