[PATCH] D18667: ELF: Add flag for controlling LTO optimization level.

[Rui Ueyama via llvm-commits]

ruiu added a comment.

So the metadata would be carried on from the compiler to the linker? It feels a bit counter intuitive to me because actual LTO happens in the linker instead of the compiler. Also, if two metadata conflicts (for example, if one file has O3 and other is O1), what should we do?


http://reviews.llvm.org/D18667