[PATCH] D111750: [llvm-profgen] Allow unsymbolized profile as perf input

[Wenlei He via Phabricator via llvm-commits]

wenlei added inline comments.


================
Comment at: llvm/tools/llvm-profgen/PerfReader.h:659
+*/
+class UnsymbolizedProfileReader : public PerfReaderBase {
+public:
----------------
hoy wrote:
> What is the main reason of making this type hierarchy? It looks like `UnsymbolizedProfileReader` doesn't need most of the interfaces `PerfReaderBase` provides. Conceptually it sounds to me that the two classes function independently, and if we'd like code sharing,  `UnsymbolizedProfileReader` can be made the base class of `PerfReaderBase` or make a new base class that simply reads in something and outputs an symbolized profile?
> UnsymbolizedProfileReader can be made the base class of PerfReaderBase

I don't think this is a good idea. Conceptually, PerfReader is not a special kind of UnsymbolizedProfileReader.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D111750/new/

https://reviews.llvm.org/D111750