[clang] [llvm] [TimeProfiler][Clang] Add zstd-compressed time-trace output support (PR #228627)

[Alina Sbirlea via llvm-commits]

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@@ -437,14 +474,35 @@ Error llvm::timeTraceProfilerWrite(StringRef PreferredFileName,
   if (Path.empty()) {
     Path = FallbackFileName == "-" ? "out" : FallbackFileName.str();
     Path += TimeTraceFileExtension;
+    if (TimeTraceProfilerInstance->TimeTraceCompress ==
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alinas wrote:

Hmm, is could be possible the given path does not have a .zst(d) extension, but the compression is specified as zstd, in which case the path is not currently updated. I'm assuming that's WAI.

https://github.com/llvm/llvm-project/pull/228627