mbox series

[v2,0/3] c++: Track lifetimes in constant evaluation [PR70331, ...]

Message ID 20230329023258.13487-1-nathanieloshead@gmail.com
Headers show
Series c++: Track lifetimes in constant evaluation [PR70331, ...] | expand

Message

Nathaniel Shead March 29, 2023, 2:32 a.m. UTC 
This is an update of the patch series at
https://gcc.gnu.org/pipermail/gcc-patches/2023-March/614759.html

The main change is modifying the first patch to store the "expired" flag
in the C++-specific lang_decl_base struct instead of tree_decl_common.
The second and third patches to improve diagnostic locations are
otherwise unchanged.

Bootstrapped and regression tested on x86_64 linux.

Nathaniel

---

Nathaniel Shead (3):
  c++: Track lifetimes in constant evaluation [PR70331,PR96630,PR98675]
  c++: Improve constexpr error for dangling local variables
  c++: Improve location information in constexpr evaluation

 gcc/cp/constexpr.cc                           | 152 ++++++++++++------
 gcc/cp/cp-tree.h                              |  10 +-
 gcc/cp/module.cc                              |   2 +
 gcc/cp/semantics.cc                           |   5 +-
 gcc/cp/typeck.cc                              |   5 +-
 gcc/testsuite/g++.dg/cpp0x/constexpr-48089.C  |  10 +-
 gcc/testsuite/g++.dg/cpp0x/constexpr-diag3.C  |   2 +-
 gcc/testsuite/g++.dg/cpp0x/constexpr-ice20.C  |   2 +-
 gcc/testsuite/g++.dg/cpp1y/constexpr-89481.C  |   3 +-
 .../g++.dg/cpp1y/constexpr-lifetime1.C        |  14 ++
 .../g++.dg/cpp1y/constexpr-lifetime2.C        |  20 +++
 .../g++.dg/cpp1y/constexpr-lifetime3.C        |  13 ++
 .../g++.dg/cpp1y/constexpr-lifetime4.C        |  11 ++
 .../g++.dg/cpp1y/constexpr-lifetime5.C        |  11 ++
 gcc/testsuite/g++.dg/cpp1y/constexpr-union5.C |   4 +-
 gcc/testsuite/g++.dg/cpp1y/pr68180.C          |   4 +-
 .../g++.dg/cpp1z/constexpr-lambda6.C          |   4 +-
 gcc/testsuite/g++.dg/cpp2a/bit-cast11.C       |  10 +-
 gcc/testsuite/g++.dg/cpp2a/bit-cast12.C       |  10 +-
 gcc/testsuite/g++.dg/cpp2a/bit-cast14.C       |  14 +-
 gcc/testsuite/g++.dg/cpp2a/constexpr-98122.C  |   4 +-
 .../g++.dg/cpp2a/constexpr-dynamic17.C        |   5 +-
 gcc/testsuite/g++.dg/cpp2a/constexpr-init1.C  |   5 +-
 gcc/testsuite/g++.dg/cpp2a/constexpr-new12.C  |   6 +-
 gcc/testsuite/g++.dg/cpp2a/constexpr-new3.C   |  10 +-
 gcc/testsuite/g++.dg/ext/constexpr-vla2.C     |   4 +-
 gcc/testsuite/g++.dg/ext/constexpr-vla3.C     |   4 +-
 gcc/testsuite/g++.dg/ubsan/pr63956.C          |   4 +-
 .../g++.dg/warn/Wreturn-local-addr-6.C        |   3 -
 .../25_algorithms/equal/constexpr_neg.cc      |   7 +-
 30 files changed, 246 insertions(+), 112 deletions(-)
 create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime1.C
 create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime2.C
 create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime3.C
 create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime4.C
 create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime5.C

Comments

Nathaniel Shead May 8, 2023, 10:48 a.m. UTC | #1 
Just pinging in case this fix has fallen through the cracks.

https://gcc.gnu.org/pipermail/gcc-patches/2023-March/614811.html

On Wed, Mar 29, 2023 at 1:33 PM Nathaniel Shead
<nathanieloshead@gmail.com> wrote:
>
> This is an update of the patch series at
> https://gcc.gnu.org/pipermail/gcc-patches/2023-March/614759.html
>
> The main change is modifying the first patch to store the "expired" flag
> in the C++-specific lang_decl_base struct instead of tree_decl_common.
> The second and third patches to improve diagnostic locations are
> otherwise unchanged.
>
> Bootstrapped and regression tested on x86_64 linux.
>
> Nathaniel
>
> ---
>
> Nathaniel Shead (3):
>   c++: Track lifetimes in constant evaluation [PR70331,PR96630,PR98675]
>   c++: Improve constexpr error for dangling local variables
>   c++: Improve location information in constexpr evaluation
>
>  gcc/cp/constexpr.cc                           | 152 ++++++++++++------
>  gcc/cp/cp-tree.h                              |  10 +-
>  gcc/cp/module.cc                              |   2 +
>  gcc/cp/semantics.cc                           |   5 +-
>  gcc/cp/typeck.cc                              |   5 +-
>  gcc/testsuite/g++.dg/cpp0x/constexpr-48089.C  |  10 +-
>  gcc/testsuite/g++.dg/cpp0x/constexpr-diag3.C  |   2 +-
>  gcc/testsuite/g++.dg/cpp0x/constexpr-ice20.C  |   2 +-
>  gcc/testsuite/g++.dg/cpp1y/constexpr-89481.C  |   3 +-
>  .../g++.dg/cpp1y/constexpr-lifetime1.C        |  14 ++
>  .../g++.dg/cpp1y/constexpr-lifetime2.C        |  20 +++
>  .../g++.dg/cpp1y/constexpr-lifetime3.C        |  13 ++
>  .../g++.dg/cpp1y/constexpr-lifetime4.C        |  11 ++
>  .../g++.dg/cpp1y/constexpr-lifetime5.C        |  11 ++
>  gcc/testsuite/g++.dg/cpp1y/constexpr-union5.C |   4 +-
>  gcc/testsuite/g++.dg/cpp1y/pr68180.C          |   4 +-
>  .../g++.dg/cpp1z/constexpr-lambda6.C          |   4 +-
>  gcc/testsuite/g++.dg/cpp2a/bit-cast11.C       |  10 +-
>  gcc/testsuite/g++.dg/cpp2a/bit-cast12.C       |  10 +-
>  gcc/testsuite/g++.dg/cpp2a/bit-cast14.C       |  14 +-
>  gcc/testsuite/g++.dg/cpp2a/constexpr-98122.C  |   4 +-
>  .../g++.dg/cpp2a/constexpr-dynamic17.C        |   5 +-
>  gcc/testsuite/g++.dg/cpp2a/constexpr-init1.C  |   5 +-
>  gcc/testsuite/g++.dg/cpp2a/constexpr-new12.C  |   6 +-
>  gcc/testsuite/g++.dg/cpp2a/constexpr-new3.C   |  10 +-
>  gcc/testsuite/g++.dg/ext/constexpr-vla2.C     |   4 +-
>  gcc/testsuite/g++.dg/ext/constexpr-vla3.C     |   4 +-
>  gcc/testsuite/g++.dg/ubsan/pr63956.C          |   4 +-
>  .../g++.dg/warn/Wreturn-local-addr-6.C        |   3 -
>  .../25_algorithms/equal/constexpr_neg.cc      |   7 +-
>  30 files changed, 246 insertions(+), 112 deletions(-)
>  create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime1.C
>  create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime2.C
>  create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime3.C
>  create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime4.C
>  create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-lifetime5.C
>
> --
> 2.34.1
>