[llvm] [OpenMP][offload] Add LIBOMPTARGET_KERNEL_EXE_TIME (PR #222105)

[Shilei Tian via llvm-commits]

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@@ -1383,6 +1417,33 @@ struct AMDGPUStreamTy {
     return Plugin::success();
   }
 
+  /// Report the duration of a completed kernel. This is a post completion
+  /// action, taken while the kernel's signal is still alive.
+  static Error kernelDurationTracingAction(void *Data) {
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shiltian wrote:

A function needs to start with a verb.

https://github.com/llvm/llvm-project/pull/222105