[PATCH] D120266: [clang][CodeGen] Avoid emitting ifuncs with undefined resolvers

[Itay Bookstein via Phabricator via cfe-commits]

ibookstein updated this revision to Diff 411409.
ibookstein edited the summary of this revision.
ibookstein added a comment.

Changed code to generating a function declaration and 'upgrading'
it to an ifunc instead of generating and ifunc and 'downgrading'
it to a function declaration. I decided against changing it to
bind against the unsuffixed alias instead of the ifunc, though,
because that seems to be more involved for little benefit.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120266/new/

https://reviews.llvm.org/D120266

Files:
  clang/lib/CodeGen/CodeGenModule.cpp
  clang/test/CodeGen/attr-cpuspecific.c

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