llvm-project

f16e1b34 - [GlobalISel] Avoid repeated target info queries in combiners (#196530)

[GlobalISel] Avoid repeated target info queries in combiners (#196530) tryCombineAllImpl queries target info for every instruction. Cache TargetInstrInfo/TargetRegisterInfo/RegisterBankInfo in CombinerHelper and pass to executeMatchTable instead. This avoids repeated virtual calls on the combiner executeMatchTable path. CTMark -0.08% geomean improvement on aarch64-O0-g. https://llvm-compile-time-tracker.com/compare.php?from=71fef6d5a306d1adf8bf7d30d2fe9e286380fecf&to=13bc49510657450402c066098e3a4b7d1af9d0e6&stat=instructions%3Au Assisted-by: codex