[macstl-dev] gcc 3.3 on YellowDogLinux

[Michael LeBlanc]

I tried to cut the problem down to size.  It looks like __vector is 
being dropped from the return type of operator().  When using an 
explicit type, it draws the weird error.

$ cat -n y.cpp
      1  #include <altivec.h>
      2
      3  template <unsigned int v0> struct generator
      4      {
      5  #ifdef USE_TYPEDEF
      6      typedef __vector unsigned int T;
      7      T
      8  #else
      9      __vector unsigned int
     10  #endif
     11      operator() () const
     12          {
     13          union union_type
     14              {
     15              unsigned int val [4];
     16              __vector unsigned int vec;
     17              };
     18          static const union_type un = {v0, v0, v0, v0};
     19          return un.vec;
     20          }
     21      };
     22
     23  __vector unsigned char zz =
     24      static_cast <__vector unsigned char>
     25      (generator <0> () ())
     26      ;
     27

$ gcc -c y.cpp
y.cpp:12: sorry, unimplemented: `integer_cst' not supported by dump_type
y.cpp:25: error: non-template type `generator' used as a template

$ gcc -c y.cpp -DUSE_TYPEDEF
y.cpp:25: error: invalid static_cast from type `unsigned int' to type 
`vector
    unsigned char'
y.cpp: In member function `unsigned int generator<v0>::operator()() 
const [with
    unsigned int v0 = 0]':
y.cpp:25:   instantiated from here
y.cpp:19: error: cannot convert `vector unsigned int' to `unsigned int' 
in
    return