[CodeGen] Don't check attrs for stack realign #92564
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shouldRealignStack/canRealignStack are repeatedly called in PEI (through hasStackRealignment). Checking function attributes is expensive, so cache this data in the MachineFrameInfo, which had most data already.
MaskRay
approved these changes
May 29, 2024
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shouldRealignStack/canRealignStack are repeatedly called in PEI (through hasStackRealignment). Checking function attributes is expensive, so cache this data in the MachineFrameInfo, which had most data already.
This slightly changes the semantics of
MachineFrameInfo::ForcedRealignto be also true when thestackrealignattribute is set. I hope this doesn't break anything.