[clang] [compiler-rt] [llvm] Migrate llvm-profdata to Opt flag parsing (PR #177868)

[David Zbarsky via cfe-commits]

================
@@ -2,14 +2,23 @@ set(LLVM_LINK_COMPONENTS
   Core
   Object
   ProfileData
+  Option
   Support
   )
 
+set(LLVM_TARGET_DEFINITIONS Opts.td)
+tablegen(LLVM Opts.inc -gen-opt-parser-defs)
+add_public_tablegen_target(ProfdataOptsTableGen)
+
 add_llvm_tool(llvm-profdata
   llvm-profdata.cpp
 
   DEPENDS
   intrinsics_gen
+  ProfdataOptsTableGen
+  GENERATE_DRIVER
   )
 
-target_link_libraries(llvm-profdata PRIVATE LLVMDebuginfod)
+if(NOT LLVM_TOOL_LLVM_DRIVER_BUILD)
----------------
dzbarsky wrote:

I'm generally a fan of breaking out changes, but my experience with submitting PRs to LLVM has been extremely high variance in review latency and it's often unclear who to loop in to do reviews, etc, which incentivizes bundling changes to minimize number of times contributor goes through this process :)

If you or someone else commits to doing a quick follow-up review enabling the multicall bits, I'll happily split them out

https://github.com/llvm/llvm-project/pull/177868