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git_commit commit d1b5607dc113016b74d0a58e95fed00ea9ad7950
Author: lbonn <lbonn@users.noreply.github.com>
Date: Sat Sep 27 16:49:54 2025 +0200

[libc++][ranges] Fix `ranges::join_view` segmented iterator trait (#158347)

The outer iterator needs to move to the next segment when calling
__compose.

Without this change, `find_segment_if` would never reach the end of the
join_view which caused erroneous result when calling `ranges::find` on a
join_view of bidirectional ranges.

Other specializations using the segmented iterator trait were likely to
be affected as well.

Fixes #158279
Fixes #93180
Filter

ldionne-old-macbook-results test results

Run Order Start Time Duration
Current 554129 2025-12-16T16:40:01 0:00:00
Previous 553820 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 2 0
Performance Improvements 6 0
Added Tests 0 16
Unchanged Tests 72 64
Total Tests 80

Performance Regressions - execution_time Δ Previous Current σ Δ (B) σ (B)
748_flightdm_r 2.17% 8.829 9.021 - 0.00% -
753_ns3_r 1.40% 10.427 10.573 - 0.00% -

Performance Improvements - execution_time Δ Previous Current σ Δ (B) σ (B)
707_ntest_r -9.48% 18.302 16.567 - 0.00% -
710_omnetpp_r -5.34% 8.912 8.436 - 0.00% -
706_stockfish_r -3.27% 22.266 21.539 - 0.00% -
727_cppcheck_r -2.82% 25.505 24.786 - 0.00% -
737_gmsh_r -1.84% 13.007 12.767 - 0.00% -
709_cactus_r -1.04% 19.818 19.612 - 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
735_gem5_r
736_ocio_r
737_gmsh_r
748_flightdm_r
750_sealcrypto_r
753_ns3_r
766_femflow_r


Report Time: 0.06s
Name Current %
706_stockfish_r 21.539 -3.27%
707_ntest_r 16.567 -9.48%
709_cactus_r 19.612 -1.04%
710_omnetpp_r 8.436 -5.34%
721_gcc_r 13.046 -
723_llvm_r 11.499 -
727_cppcheck_r 24.786 -2.82%
729_abc_r 18.679 -
731_astcenc_r 10.127 -
735_gem5_r 13.911 -
736_ocio_r 16.303 -
737_gmsh_r 12.767 -1.84%
748_flightdm_r 9.021 2.17%
750_sealcrypto_r 18.456 -
753_ns3_r 10.573 1.40%
766_femflow_r 12.881 -
Geometric Mean 14.198 -1.52%