[PATCH] D117965: [AlwaysInliner] Enable call site inlining to make flatten attribute working again (PR53360)

[Dávid Bolvanský via Phabricator via cfe-commits]

xbolva00 created this revision.
xbolva00 added reviewers: leonardchan, aeubanks.
Herald added subscribers: ormris, hiraditya.
xbolva00 requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

Problem: Migration to new PM broke flatten attribute.

This is one use case why LLVM should support inlining call-site with alwaysinline.  The flatten attribute is nowdays broken, so we should either land patch like this one or remove everything related to  flatten attribute from Clang.

Second use case is something like "per call site inlining intrinsics" to control inlining even more; mentioned in
https://lists.llvm.org/pipermail/cfe-dev/2018-September/059232.html


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117965

Files:
  clang/test/CodeGen/flatten.c
  clang/test/CodeGenCXX/flatten.cpp
  llvm/lib/Transforms/IPO/AlwaysInliner.cpp
  llvm/test/Transforms/Inline/always-inline.ll

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