[PATCH] D71639: [ELF][PPC64] Improve "call lacks nop" diagnostic and make it compatible with GCC<5.5 and GCC<6.4

[Sean Fertile via Phabricator via llvm-commits]

sfertile added a comment.

Relaxing the check will allow those old miss-compiled objects to link, but we are loosing some utility here as well: we are turning a valid link time failure into a potential runtime failure. Even worse a runtime failure that depends on the environment at load time so the failure is not consistent. Could we guard the error relaxation with a specific option so that 1) It must be opted into specifically and 2) We can eventually phase the option out once the OS that used gcc 5.* and 6.* go out of service?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D71639/new/

https://reviews.llvm.org/D71639