Cullen Rhodes f2efeabe31 [CodeGen] Parse frame-pointer attribute once when creating MachineFunction (#191974) ...

TargetOptions::DisableFramePointerElim is hot and showing up in
compile-time profiles via AArch64FrameLowering::hasFPImpl on
aarch64-O0-g builds. Repeatedly looking up the function attribute is
expensive. Parsing it once at MachineFunction initialisation and storing
as FramePointerKind on MachineFrameInfo is a -0.21% geomean improvement
on CTMark stage1-aarch64-O0-g. Also helps debug builds on other targets.

https://llvm-compile-time-tracker.com/compare.php?from=215f35eb8f1c313ac135ad47db1cc0b99b3ae694&to=51f6617517177bea1cc49baeab3acaf62d5e9df9&stat=instructions%3Au

2026-04-20 09:48:21 +01:00

2.6 KiB

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