[PATCH] D110422: [AIX] Enable PGO without LTO

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added a comment.

The description is still unclear.

Say a.o has a weak `foo, __profc_foo, __profd_foo`, b.o has a weak `foo, __profc_foo, __profd_foo`.
The linker picks the definitions from `a.o`. In the PGO implementation, it doesn't whether the non-discarded b.o `__profd_foo` has garbage value.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D110422/new/

https://reviews.llvm.org/D110422