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git_commit commit 52b27c2bd627c4b83d94b945748faf237cc28a3c
Author: Louis Dionne <ldionne.2@gmail.com>
Date: Tue Jun 24 13:58:49 2025 -0400

[libc++] Refactor basic_filebuf::overflow() (#144793)

Refactor the function to streamline the logic so it matches the
specification in [filebuf.virtuals] more closely. In particular, avoid
modifying the put area pointers when we loop around after a partial
codecvt conversion.

Note that we're technically not up-to-spec in this implementation, since
the Standard says that we shouldn't try more than once after a partial
codecvt conversion. However, this refactoring attempts not to change any
functionality.
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ldionne-old-macbook-results test results

Run Order Start Time Duration
Current 542102 2025-12-16T16:40:01 0:00:00
Previous 542717 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 5 0
Added Tests 0 17
Unchanged Tests 78 68
Total Tests 85

Performance Regressions - execution_time Δ Previous Current σ Δ (B) σ (B)
707_ntest_r 1.53% 18.111 18.389 - 0.00% -
709_cactus_r 1.22% 19.785 20.027 - 0.00% -

Performance Improvements - execution_time Δ Previous Current σ Δ (B) σ (B)
750_sealcrypto_r -2.34% 18.957 18.513 - 0.00% -
735_gem5_r -1.76% 14.036 13.789 - 0.00% -
710_omnetpp_r -1.46% 8.506 8.382 - 0.00% -
729_abc_r -1.32% 19.168 18.915 - 0.00% -
736_ocio_r -1.05% 16.402 16.230 - 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


Report Time: 0.63s
Name Current %
706_stockfish_r 22.295 -
707_ntest_r 18.389 1.53%
709_cactus_r 20.027 1.22%
710_omnetpp_r 8.382 -1.46%
721_gcc_r 13.051 -
723_llvm_r 11.506 -
727_cppcheck_r 24.978 -
729_abc_r 18.915 -1.32%
731_astcenc_r 10.149 -
734_vpr_r 15.446 -
735_gem5_r 13.789 -1.76%
736_ocio_r 16.230 -1.05%
737_gmsh_r 13.121 -
748_flightdm_r 8.949 -
750_sealcrypto_r 18.513 -2.34%
753_ns3_r 10.644 -
766_femflow_r 12.808 -
Geometric Mean 14.426 -