CMake: fix compile_stream_func function
polyhedral model: implement constant global statements
polyhedral model: implement function calls
polyhedral model: improve printing intrinsic ops
polyhedral model: implement stream extent operator "#"
polyhedral model: complete access for arguments of intrinsics
polyhedral model: add "min" intrinsic
llvm gen: implement all intrinsics

FIXME: integer/floating-point handling does not match source types.
update matrix multiplication test