[Bug tree-optimization/113910] [12/13/14 regression] Factor 15 slowdown compiling AMDGPUDisassembler.cpp on SPARC

["rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113910

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note GCC 13 seems to dislike the preprocessed source (odd, 12 and trunk are
happy...)

In file included from /usr/gcc/11/include/c++/11.4.0/memory:76,
                 from
/vol/llvm/src/llvm-project/local/llvm/include/llvm/ADT/SmallVector.h:28,
                 from
/vol/llvm/src/llvm-project/local/llvm/include/llvm/ADT/SmallString.h:17,
                 from
/vol/llvm/src/llvm-project/local/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h:19,
                 from
/vol/llvm/src/llvm-project/local/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp:19:
/usr/gcc/11/include/c++/11.4.0/bits/unique_ptr.h:486:8: error: expected
identifier before '__remove_cv'
/usr/gcc/11/include/c++/11.4.0/bits/unique_ptr.h:486:20: error: expected '('
before '=' token
/usr/gcc/11/include/c++/11.4.0/bits/unique_ptr.h:486:20: error: expected
type-specifier before '=' token
/usr/gcc/11/include/c++/11.4.0/bits/unique_ptr.h:486:20: error: expected
unqualified-id before '=' token
/usr/gcc/11/include/c++/11.4.0/bits/unique_ptr.h:492:55: error: wrong number of
template arguments (1, should be 2)

that's

 using __remove_cv = typename remove_cv<_Up>::type;


      template<typename _Up>
 using __is_derived_Tp
   = __and_< is_base_of<_Tp, _Up>,
      __not_<is_same<__remove_cv<_Tp>, __remove_cv<_Up>>> >;

I think.