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git_commit commit b86aaacf28b358b187071bc87075f1faa2d65c4e
Author: Andrew Lazarev <alazarev@google.com>
Date: Thu Sep 25 15:10:37 2025 -0700

Revert "[libc++] Avoid constructing additional objects when using map::at" (#160738)

Reverts llvm/llvm-project#157866

It breaks a lot of sanitizer buildbots
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ldionne-old-macbook-results test results

Run Order Start Time Duration
Current 553967 2025-12-16T16:40:01 0:00:00
Previous 553936 2025-12-16T16:40:01 0:00:00
Baseline 485288 2025-12-16T16:40:01 0:00:00


Tests Summary

Status Group # # (B)
Performance Improvements 4 0
Added Tests 0 16
Unchanged Tests 76 64
Total Tests 80

Performance Improvements - execution_time Δ Previous Current σ Δ (B) σ (B)
707_ntest_r -10.01% 18.462 16.614 - 0.00% -
706_stockfish_r -3.18% 22.261 21.552 - 0.00% -
737_gmsh_r -2.56% 12.955 12.623 - 0.00% -
729_abc_r -1.31% 18.781 18.535 - 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: 0.13s
Name Current %
706_stockfish_r 21.552 -3.18%
707_ntest_r 16.614 -10.01%
709_cactus_r 19.620 -
710_omnetpp_r 8.475 -
721_gcc_r 12.955 -
723_llvm_r 11.559 -
727_cppcheck_r 24.590 -
729_abc_r 18.535 -1.31%
731_astcenc_r 10.148 -
735_gem5_r 13.392 -
736_ocio_r 16.282 -
737_gmsh_r 12.623 -2.56%
748_flightdm_r 9.161 -
750_sealcrypto_r 18.461 -
753_ns3_r 10.359 -
766_femflow_r 12.798 -
Geometric Mean 14.137 -1.33%