File: decltype-54581.C

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gcc-arm-none-eabi 15%3A7-2018-q2-5
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/* { dg-do compile { target c++11 } } */
/* { dg-options "-Wall -Wno-tautological-compare" } */

typedef float v4f __attribute__((vector_size(4*sizeof(float))));

template <class T> void eat (T&&) {}

void test1 ()
{
  v4f x = {0,1,2,3};
  typedef decltype (x < x) v4i;
  v4i y = {4,5,6,7}; // v4i is not opaque
  eat (y);
}

template<class V>
void test2 ()
{
  V x = {0,1,2,3};
  typedef decltype (x < x) v4i;
  v4i y = {4,5,6,7}; // v4i is not opaque
  eat (y);
}

int main(){
  test1();
  test2<v4f>();
}