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
