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git_commit commit 6d9dfd75e4df9fdff9ea34f1c0bd741bf5b53b89
Author: Hristo Hristov <hghristov.rmm@gmail.com>
Date: Sat Mar 8 16:20:56 2025 +0200

[libc++][type_traits] Implements "A type trait to detect reference binding to temporary" (#128649)

Implements partially: [P2255R2: A type trait to detect reference binding
to temporary](https://wg21.link/P2255R2)
Issue: https://github.com/llvm/llvm-project/issues/105180

https://eel.is/c++draft/meta.type.synop
https://eel.is/c++draft/meta.unary.prop

Implented type traits:
- [x] `reference_constructs_from_temporary`
- [x] `reference_converts_from_temporary`

Closes #129049

Minor drive-by tweak to `std::is_implicit_lifetime` tests.

---------

Co-authored-by: Hristo Hristov <zingam@outlook.com>
Filter

ldionne-old-macbook-results test results

Run Order Start Time Duration
Current 529899 2025-12-16T16:40:01 0:00:00
Previous 529744 2025-12-16T16:40:01 0:00:00
Baseline 485288 2025-12-16T16:40:01 0:00:00


Tests Summary

Status Group # # (B)
Performance Regressions 3 0
Performance Improvements 1 0
Added Tests 1 18
Unchanged Tests 85 72
Total Tests 90

Performance Regressions - execution_time Δ Previous Current σ Δ (B) σ (B)
710_omnetpp_r 1.71% 8.406 8.550 - 0.00% -
734_vpr_r 1.26% 15.397 15.591 - 0.00% -
707_ntest_r 1.17% 18.099 18.311 - 0.00% -

Performance Improvements - execution_time Δ Previous Current σ Δ (B) σ (B)
737_gmsh_r -4.54% 13.645 13.026 - 0.00% -

Added Tests - execution_time
735_gem5_r

Added Tests - execution_time
706_stockfish_r
707_ntest_r
709_cactus_r
710_omnetpp_r
721_gcc_r
723_llvm_r
727_cppcheck_r
729_abc_r
731_astcenc_r
734_vpr_r
735_gem5_r
736_ocio_r
737_gmsh_r
748_flightdm_r
750_sealcrypto_r
753_ns3_r
766_femflow_r
767_nest_r


Report Time: 0.20s
Name Current %
706_stockfish_r 22.151 -
707_ntest_r 18.311 1.17%
709_cactus_r 19.723 -
710_omnetpp_r 8.550 1.71%
721_gcc_r 12.925 -
723_llvm_r 11.380 -
727_cppcheck_r 24.846 -
729_abc_r 18.670 -
731_astcenc_r 10.060 -
734_vpr_r 15.591 1.26%
735_gem5_r 13.935 -
736_ocio_r 16.130 -
737_gmsh_r 13.026 -4.54%
748_flightdm_r 9.038 -
750_sealcrypto_r 18.423 -
753_ns3_r 10.633 -
766_femflow_r 12.763 -
767_nest_r 14.136 -
Geometric Mean 14.372 -