pet build error: /usr/include/c++/9/bits/stl_tree.h:785:8: error: static assertion failed: comparison object must be invocable as const

[pal-stdr]

Hello

I am trying to make the pluto, but ended up with repeated following error triggered from pet

make[4]: Entering directory '/media/username/EXTERNAL/compiler-projects/pluto-master-test/pet'
  CXX      inlined_calls.lo
  CXX      scan.lo
  CXX      scop_plus.lo
  CXX      pet.lo
  CC       libdep_a-all.o
  AR       libdep.a
ar: `u' modifier ignored since `D' is the default (see `U')
In file included from /usr/include/c++/9/set:60,
                 from scop_plus.cc:36:
/usr/include/c++/9/bits/stl_tree.h: In instantiation of ‘static const _Key& std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_S_key(std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Const_Link_type) [with _Key = isl_id_list*; _Val = isl_id_list*; _KeyOfValue = std::_Identity<isl_id_list*>; _Compare = array_desc_less; _Alloc = std::allocator<isl_id_list*>; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Const_Link_type = const std::_Rb_tree_node<isl_id_list*>*]’:
/usr/include/c++/9/bits/stl_tree.h:1934:36:   required from ‘std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_M_lower_bound(std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Link_type, std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Base_ptr, const _Key&) [with _Key = isl_id_list*; _Val = isl_id_list*; _KeyOfValue = std::_Identity<isl_id_list*>; _Compare = array_desc_less; _Alloc = std::allocator<isl_id_list*>; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator = std::_Rb_tree_iterator<isl_id_list*>; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Link_type = std::_Rb_tree_node<isl_id_list*>*; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Base_ptr = std::_Rb_tree_node_base*]’
/usr/include/c++/9/bits/stl_tree.h:2562:16:   required from ‘std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::find(const _Key&) [with _Key = isl_id_list*; _Val = isl_id_list*; _KeyOfValue = std::_Identity<isl_id_list*>; _Compare = array_desc_less; _Alloc = std::allocator<isl_id_list*>; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator = std::_Rb_tree_iterator<isl_id_list*>]’
/usr/include/c++/9/bits/stl_set.h:795:29:   required from ‘std::set<_Key, _Compare, _Alloc>::iterator std::set<_Key, _Compare, _Alloc>::find(const key_type&) [with _Key = isl_id_list*; _Compare = array_desc_less; _Alloc = std::allocator<isl_id_list*>; std::set<_Key, _Compare, _Alloc>::iterator = std::_Rb_tree_const_iterator<isl_id_list*>; std::set<_Key, _Compare, _Alloc>::key_type = isl_id_list*]’
scop_plus.h:44:16:   required from here
/usr/include/c++/9/bits/stl_tree.h:785:8: error: static assertion failed: comparison object must be invocable as const
  785 |        is_invocable_v<const _Compare&, const _Key&, const _Key&>,
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
make[4]: *** [Makefile:1205: scop_plus.lo] Error 1
make[4]: *** Waiting for unfinished jobs....
In file included from /usr/include/c++/9/set:60,
                 from scan.cc:39:
...
.....
/usr/include/c++/9/bits/stl_tree.h:785:8: error: static assertion failed: comparison object must be invocable as const
  785 |        is_invocable_v<const _Compare&, const _Key&, const _Key&>,
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/stl_tree.h: In instantiation of ‘static const _Key& std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_S_key(std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Const_Link_type) [with _Key = clang::TypedefNameDecl*; _Val = clang::TypedefNameDecl*; _KeyOfValue = std::_Identity<clang::TypedefNameDecl*>; _Compare = less_name; _Alloc = std::allocator<clang::TypedefNameDecl*>; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_Const_Link_type = const std::_Rb_tree_node<clang::TypedefNameDecl*>*]’:
.....

Configure was done without any major error or failure, except in config.log

conftest.c:12:10: fatal error: ac_nonexistent.h: No such file or directory
   12 | #include <ac_nonexistent.h>
compilation terminated.
configure:10252: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "pluto"
| #define PACKAGE_TARNAME "pluto"
| #define PACKAGE_VERSION "0.12.0"
....
...

I have a rough guess, this has something to do with gcc version.

I am using Pluto: master branch OS: Ubuntu 20.04 llvm: 16.0.6 (locally build and added to $PATH) gcc: 9.4.0 g++: 9.4.0

My config command

./configure --prefix=/path/to/compiler-projects/pluto-master-test/installation --with-clang-prefix=$LLVM_ROOT --enable-portable-binary --enable-debug --enable-static

Help would be much much appreciated! 🙏 🙏🙏🙏

Thanks in advance!

[pal-stdr]

Last night, I had tried with clang-14, and then the PET build worked!!! Previously I was trying with clang-16 because I found this answer in one of the issue thread saying, Pluto works for clang-14, clang-15 & clang-16.

[bondhugula]

Last night, I had tried with clang-14, and then the PET build worked!!! Previously I was trying with clang-16 because I found this answer in one of the issue thread saying, Pluto works for clang-14, clang-15 & clang-16.

Sorry, looks like I might have been mistaken in that response. clang-14 was tested, and it works fine. I just tried with clang-16.0.6 and pet doesn't build with it.

[bondhugula]

Updated pet and isl to their latest release versions. It now builds with clang 16 as well (tested with clang-16.0.6).

[bondhugula]

https://github.com/bondhugula/pluto/commit/001cb37676520fa5c1e87c163b1f4cb9f4bbeb80