[all-commits] [llvm/llvm-project] a89a59: [CFI] Refactor `CfiFunctionIndex` to externalize G...

[Mircea Trofin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a89a59367fce12bc2d2d75510cda653b2482d962
      https://github.com/llvm/llvm-project/commit/a89a59367fce12bc2d2d75510cda653b2482d962
  Author: Mircea Trofin <mtrofin at google.com>
  Date:   2026-06-04 (Thu, 04 Jun 2026)

  Changed paths:
    M llvm/include/llvm/IR/ModuleSummaryIndex.h
    M llvm/include/llvm/IR/ModuleSummaryIndexYAML.h
    M llvm/lib/Bitcode/Reader/BitcodeReader.cpp
    M llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
    M llvm/lib/LTO/LTO.cpp
    M llvm/lib/Transforms/IPO/LowerTypeTests.cpp
    M llvm/test/Transforms/LowerTypeTests/Inputs/blockaddr-import.yaml
    M llvm/test/Transforms/LowerTypeTests/Inputs/cfi-direct-call.yaml
    M llvm/test/Transforms/LowerTypeTests/Inputs/cfi-direct-call1.yaml
    M llvm/test/Transforms/LowerTypeTests/Inputs/import-alias.yaml
    M llvm/test/Transforms/LowerTypeTests/Inputs/import-icall.yaml
    M llvm/test/Transforms/LowerTypeTests/Inputs/import-thinlto-funcs.yaml
    M llvm/test/Transforms/LowerTypeTests/export-icall.ll

  Log Message:
  -----------
  [CFI] Refactor `CfiFunctionIndex` to externalize GUID calculation (#201635)

In preparation for PR #201370 - the goal is to decouple CFI from _how_
ThinLTO computes its GUIDs, and enable PR #184065 (for this
[RFC](https://discourse.llvm.org/t/rfc-keep-globalvalue-guids-stable/84801)).

This PR just changes APIs and the internal implementation of
CfiFunctionIndex, the subsequent one (201370) actually propagates GUIDs
through metadata. It's _almost_ NFC - the YAML format does change
though.



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