[PATCH] D51089: [LLD] [COFF] Add support for creating range extension thunks for ARM

[Peter Smith via Phabricator via llvm-commits]

peter.smith added a comment.

If I understand it, to get a test case we'd need to have a branch that is just in range (including margin) such that no thunk is generated, but adding sufficient thunks causes that branch to go out of range. The brute force way to do it would be to generate greater than (margin/thunk-size) thunks but even with macros that would be a large tedious test to write. One possibility in ELF that I don't know would transition into COFF is to have some sections with high alignment so that inserting a thunk could displace one of these sections off an alignment boundary and hence add much more size than just the Thunk.


https://reviews.llvm.org/D51089