[all-commits] [llvm/llvm-project] 6d4d01: [llvm-extract] Delete dead `CG Profile` edges (#13...

[Mircea Trofin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6d4d017fd250b77e832bec37644f3446d0be6d6c
      https://github.com/llvm/llvm-project/commit/6d4d017fd250b77e832bec37644f3446d0be6d6c
  Author: Mircea Trofin <mtrofin at google.com>
  Date:   2025-04-09 (Wed, 09 Apr 2025)

  Changed paths:
    M llvm/include/llvm/Transforms/IPO/StripSymbols.h
    M llvm/lib/Passes/PassRegistry.def
    M llvm/lib/Transforms/IPO/StripSymbols.cpp
    A llvm/test/Transforms/StripSymbols/strip-cg-profile.ll
    M llvm/tools/llvm-extract/llvm-extract.cpp

  Log Message:
  -----------
  [llvm-extract] Delete dead `CG Profile` edges (#134940)

When `llvm-extract`-ing a function, and the `CG Profile` flag is present in the original module, we end up with lots of `!{null, null, i64 1234}` entries for call edges that have disappeared as result of the removed functions.

This patch fixes that by adding a pass to `llvm-extract` that finds `CG Profile` edges with one or both operands `null` and removes them. This results in a cleaner output.



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