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 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
