[llvm-branch-commits] [llvm] [llvm-profgen] Extend llvm-profgen to generate vtable profiles with data access events. (PR #148013)

[Mingming Liu via llvm-branch-commits]

================
@@ -370,6 +375,65 @@ PerfReaderBase::create(ProfiledBinary *Binary, 
PerfInputFile &PerfInput,
   return PerfReader;
 }
 
+Error PerfReaderBase::parseDataAccessPerfTraces(
+    StringRef DataAccessPerfTraceFile, std::optional<int32_t> PIDFilter) {
+  // A perf_record_sample line is like
+  // . 1282514022939813 0x87b0 [0x60]: PERF_RECORD_SAMPLE(IP, 0x4002):
+  // 3446532/3446532: 0x2608a2 period: 233 addr: 0x3b3fb0
+  constexpr static const char *const DataAccessSamplePattern =
----------------
mingmingl-llvm wrote:

done.

https://github.com/llvm/llvm-project/pull/148013
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