[PATCH] D57497: [RISCV] Passing -G value to RISCV backend

[Shiva Chen via Phabricator via cfe-commits]

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In D57497#1378511 <https://reviews.llvm.org/D57497#1378511>, @simoncook wrote:

> As this mllvm option only affects the creation of ELF objects, do we also need to add a similar option for the LTO case, as the -G value would have no effect otherwise?


Hi Simon, I think you're right, we may need a way to pass -G value for the LTO. One possible solution is adding passing code in `AddGoldPlugin`, but there's no other target specific code.  I can't find other targets passing their `cl::opt` flags through the LTO. Any suggestions?


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