llvm/llvm-project
Auf GitHub ansehen[MIRSampleProfile] nullptr deref crash when profile sample use file not found
Open
#189.764 geöffnet am 31. März 2026
PGOcrash-on-invalidgood first issuellvm:codegen
Repository-Metriken
- Stars
- (26.378 Stars)
- PR-Merge-Metriken
- (Durchschn. Merge 1T 2h) (1.000 gemergte PRs in 30 T)
Beschreibung
Trying to reproduce https://github.com/llvm/llvm-project/issues/188897, I failed to pass a valid file for -fprofile-sample-use=; this caused a crash because Reader is nullptr in MIRProfileLoader::runOnFunction. Should be easy to guard against this I think. cc @htyu (author of 958a3d8e2dec95a878dfc9d823861b3a6c674534)