[Bug c++/111899] New: [14 regression] GCC fails to bootstrap with 'ust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[Bug c++/111899] New: [14 regression] GCC fails to bootstrap with 'ust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111899

            Bug ID: 111899
           Summary: [14 regression] GCC fails to bootstrap with
                    'ust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was
                    not declared in this scope'
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sjames at gcc dot gnu.org
  Target Milestone: ---

/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/build/./prev-gcc/xg++
-B/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/build/./prev-gcc/
-B/usr/x86_64-pc-linux-gnu/bin/ -nostdinc++
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-B/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs

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-L/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
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/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/gcc/rust/backend/rust-tree.cc
/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/gcc/rust/backend/rust-tree.cc:
In function ‘void Rust::mark_exp_read(tree)’:
/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/gcc/rust/backend/rust-tree.cc:75:10:
error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope
   75 |     case NON_DEPENDENT_EXPR:
      |          ^~~~~~~~~~~~~~~~~~
/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/gcc/rust/backend/rust-tree.cc:
In function ‘tree_node* Rust::mark_use(tree, bool, bool, location_t, bool)’:
/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/gcc/rust/backend/rust-tree.cc:131:10:
error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope
  131 |     case NON_DEPENDENT_EXPR:
      |          ^~~~~~~~~~~~~~~~~~
/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/gcc/rust/backend/rust-tree.cc:
In function ‘cp_lvalue_kind Rust::lvalue_kind(const_tree)’:
/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/gcc/rust/backend/rust-tree.cc:4523:10:
error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope
 4523 |     case NON_DEPENDENT_EXPR:
      |          ^~~~~~~~~~~~~~~~~~
make[3]: ***
[/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/gcc/rust/Make-lang.in:379:
rust/rust-tree.o] Error 1

[Bug rust/111899] [14 regression] GCC fails to bootstrap with 'rust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111899

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |14.0

[Bug rust/111899] [14 regression] GCC fails to bootstrap with 'rust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111899

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-10-20
                 CC|                            |mpolacek at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed, Andrew noticed it too:
https://gcc.gnu.org/pipermail/gcc-patches/2023-October/633773.html

[Bug rust/111899] [14 regression] GCC fails to bootstrap with 'rust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111899

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I noticed it via the build bot:
https://gcc.gnu.org/pipermail/gcc-testresults/2023-October/798851.html

[Bug rust/111899] [14 regression] GCC fails to bootstrap with 'rust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111899

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |ppalka at gcc dot gnu.org
             Status|NEW                         |ASSIGNED

[Bug rust/111899] [14 regression] GCC fails to bootstrap with 'rust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111899

--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
I'm testing simply removing all occurrences of NON_DEPENDENT_EXPR in the parts
of rust FE that were reused from the C++ FE

[Bug rust/111899] [14 regression] GCC fails to bootstrap with 'rust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111899

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:

https://gcc.gnu.org/g:5ac53c025e08b4c464b02cfc595e422813023c81

commit r14-4800-g5ac53c025e08b4c464b02cfc595e422813023c81
Author: Patrick Palka <ppalka@redhat.com>
Date:   Fri Oct 20 13:36:11 2023 -0400

    rust: build failure after NON_DEPENDENT_EXPR removal [PR111899]

    This patch removes stray NON_DEPENDENT_EXPR checks following the removal
    of this tree code from the C++ FE.  (Since this restores the build I
    supppose it means the Rust FE never creates NON_DEPENDENT_EXPR trees in
    the first place, so no further analysis is needed.)

            PR rust/111899

    gcc/rust/ChangeLog:

            * backend/rust-constexpr.cc (potential_constant_expression_1):
            Remove NON_DEPENDENT_EXPR handling.
            * backend/rust-tree.cc (mark_exp_read): Likewise.
            (mark_use): Likewise.
            (lvalue_kind): Likewise.

[Bug rust/111899] [14 regression] GCC fails to bootstrap with 'rust-tree.cc:131:10: error: ‘NON_DEPENDENT_EXPR’ was not declared in this scope'

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111899

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Fixed