[llvm] [bolt] Simplify rodata/literal load for X86_64 & AArch64 (PR #179474)

[Alexey Moksyakov via llvm-commits]

yavtuk wrote:

@aaupov do you have the rights for Rafael repo to merge PR  simultaneously here and there?
https://github.com/rafaelauler/bolt-tests/pull/41https://github.com/rafaelauler/bolt-tests/pull/41

https://github.com/llvm/llvm-project/pull/179474