[PATCH] D152799: [FuncSpec] Promote stack values before specialization

[Alexandros Lamprineas via Phabricator via llvm-commits]

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After each iteration of the function specializer, constant stack values are promoted to constant globals in order to enable recursive function specialization. This should also be done once before running the specializer. Enables specialization of `_QMbrute_forcePdigits_2` from SPEC2017:548.exchange2_r


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152799

Files:
  llvm/include/llvm/Transforms/IPO/FunctionSpecialization.h
  llvm/lib/Transforms/IPO/FunctionSpecialization.cpp
  llvm/test/Transforms/FunctionSpecialization/promoteContantStackValues.ll

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