[PATCH] D39418: [ELF] - Split processSectionCommands().

[George Rimar via Phabricator via llvm-commits]

grimar created this revision.
Herald added a subscriber: emaste.

It was suggested in https://reviews.llvm.org/D38582 thread and I think reasonable
cleanup itself.

`processSectionCommands()` uses `createInputSectionList()` to construct the
list of input sections. In this patch I changed `createInputSectionList()` to return
Optional<>, so that now it filters out sections that does not satisfy ONLY_IF_RO/ONLY_IF_RW
constraints and sections that are discarded using /DISCARD/ on its side. That allows
to reduce loop in `processSectionCommands()` and I think looks more natural.


https://reviews.llvm.org/D39418

Files:
  ELF/LinkerScript.cpp
  ELF/LinkerScript.h

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