[PATCH] D80987: [Instruction] Remove setProfWeight()

[Hiroshi Yamauchi via Phabricator via llvm-commits]

yamauchi added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp:4958-4959
 
   // Preserve the weight metadata for the new call instruction. The metadata
   // is used by SamplePGO to check callsite's hotness.
+  NewCall->copyMetadata(*Caller, {LLVMContext::MD_prof});
----------------
This refers to SamplePGO preserving the call count in the metadata (which originates in D31344), but it seems more general as it could also apply to calls under PGO (eg the VP metadata).


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80987/new/

https://reviews.llvm.org/D80987