| Issue |
174036
|
| Summary |
[EntryExitInstrumenter] Calls incorrectly get removed after skipping `available_externally`
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
cardigan1008
|
In https://github.com/llvm/llvm-project/commit/e6f76378c20bebec85f66c1574bb6bb928a79025, it skips instrumentation on `available_externally` functions, but overlooks that instrumentation previously provided the only observable side effect anchoring calls to such functions. Once removed, later passes (including inlining and call simplification) may incorrectly treat those calls as removable no-ops.
Alive2 proof: https://alive2.llvm.org/ce/z/BMiptW
Exposed from https://github.com/llvm/llvm-project/commit/e6f76378c20bebec85f66c1574bb6bb928a79025, cc @MaskRay
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