[all-commits] [llvm/llvm-project] a964f2: [libc] Improve Benchmark UI (#99796)

[jameshu15869 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a964f2e8a1e98d5ac1fa379ec52b6713ae5cb48a
      https://github.com/llvm/llvm-project/commit/a964f2e8a1e98d5ac1fa379ec52b6713ae5cb48a
  Author: jameshu15869 <55058507+jameshu15869 at users.noreply.github.com>
  Date:   2024-07-21 (Sun, 21 Jul 2024)

  Changed paths:
    M libc/benchmarks/gpu/CMakeLists.txt
    M libc/benchmarks/gpu/LibcGpuBenchmark.cpp
    M libc/benchmarks/gpu/LibcGpuBenchmark.h

  Log Message:
  -----------
  [libc] Improve Benchmark UI (#99796)

This PR changes the output to resemble Google Benchmark. e.g.

```
Running Suite: LlvmLibcIsAlNumGpuBenchmark
Benchmark            |  Cycles |     Min |     Max | Iterations |   Time (ns) |   Stddev |  Threads |
-----------------------------------------------------------------------------------------------------
IsAlnum              |      92 |      76 |     482 |         23 |       86500 |       76 |       64 |
IsAlnumSingleThread  |      87 |      76 |     302 |         20 |       72000 |       49 |        1 |
IsAlnumSingleWave    |      87 |      76 |     302 |         20 |       72000 |       49 |       32 |
IsAlnumCapital       |      89 |      76 |     299 |         17 |       78500 |       52 |       64 |
IsAlnumNotAlnum      |      87 |      76 |     303 |         20 |       76000 |       49 |       64 |
```



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