[all-commits] [llvm/llvm-project] 956cfa: [libc++] Refactor num_get optimization to not be A...

[Nikolas Klauser via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 956cfa69b153a0e798060f67e713790eeefebc04
      https://github.com/llvm/llvm-project/commit/956cfa69b153a0e798060f67e713790eeefebc04
  Author: Nikolas Klauser <nikolasklauser at berlin.de>
  Date:   2025-01-30 (Thu, 30 Jan 2025)

  Changed paths:
    M libcxx/include/__configuration/abi.h
    M libcxx/include/locale
    M libcxx/src/locale.cpp

  Log Message:
  -----------
  [libc++] Refactor num_get optimization to not be ABI breaking (#121690)

```
----------------------------------------------------
Benchmark                             old        new
----------------------------------------------------
BM_num_get<bool>                  81.8 ns    79.6 ns
BM_num_get<long>                  80.2 ns    75.4 ns
BM_num_get<long long>             81.5 ns    76.4 ns
BM_num_get<unsigned short>        82.5 ns    78.4 ns
BM_num_get<unsigned int>          82.8 ns    78.6 ns
BM_num_get<unsigned long>         81.2 ns    78.1 ns
BM_num_get<unsigned long long>    83.6 ns    76.7 ns
BM_num_get<float>                  119 ns     120 ns
BM_num_get<double>                 113 ns     109 ns
BM_num_get<long double>            115 ns     119 ns
BM_num_get<void*>                  147 ns     139 ns
```



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