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git_commit commit accfbd4cb327411ad66c0109ba1841482b871967
Author: Louis Dionne <ldionne.2@gmail.com>
Date: Wed Feb 5 22:32:51 2025 -0500

[libc++] Replace __is_trivially_relocatable by is_trivially_copyable (#124970)

The __is_trivially_relocatable builtin has semantics that do not
correspond to any current or future notion of trivial relocation.
Furthermore, it currently leads to incorrect optimizations for some
types on supported compilers:
- Clang on Windows where types with non-trivial destructors get
incorrectly optimized
- AppleClang where types with non-trivial move constructors get
incorrectly optimized

Until there is an agreed upon and bugfree implementation of what it
means to be trivially relocatable, it is safer to simply use trivially
copyable instead. This doesn't leave a lot of types behind and is
definitely correct.
Filter

ldionne-old-macbook-results test results

Run Order Start Time Duration
Current 526441 2025-12-16T16:40:01 0:00:00
Previous 526379 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 5 0
Performance Improvements 3 0
Added Tests 0 18
Unchanged Tests 82 72
Total Tests 90

Performance Regressions - execution_time Δ Previous Current σ Δ (B) σ (B)
721_gcc_r 3.96% 12.917 13.428 - 0.00% -
710_omnetpp_r 1.89% 8.500 8.661 - 0.00% -
767_nest_r 1.74% 14.080 14.326 - 0.00% -
727_cppcheck_r 1.57% 24.488 24.872 - 0.00% -
723_llvm_r 1.41% 11.458 11.619 - 0.00% -

Performance Improvements - execution_time Δ Previous Current σ Δ (B) σ (B)
707_ntest_r -3.04% 18.350 17.793 - 0.00% -
734_vpr_r -2.67% 15.788 15.367 - 0.00% -
735_gem5_r -2.30% 14.093 13.770 - 0.00% -

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: 0.12s
Name Current %
706_stockfish_r 22.078 -
707_ntest_r 17.793 -3.04%
709_cactus_r 19.808 -
710_omnetpp_r 8.661 1.89%
721_gcc_r 13.428 3.96%
723_llvm_r 11.619 1.41%
727_cppcheck_r 24.872 1.57%
729_abc_r 18.656 -
731_astcenc_r 10.064 -
734_vpr_r 15.367 -2.67%
735_gem5_r 13.770 -2.30%
736_ocio_r 16.231 -
737_gmsh_r 13.124 -
748_flightdm_r 8.986 -
750_sealcrypto_r 18.346 -
753_ns3_r 10.685 -
766_femflow_r 12.786 -
767_nest_r 14.326 1.74%
Geometric Mean 14.406 -