[all-commits] [llvm/llvm-project] 9fe7ae: [CodeGen] Don't check attrs for stack realign (#92...

[aengelke via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9fe7aef1889300a17a594efb55358ebd032a81a2
      https://github.com/llvm/llvm-project/commit/9fe7aef1889300a17a594efb55358ebd032a81a2
  Author: aengelke <engelke at in.tum.de>
  Date:   2024-05-29 (Wed, 29 May 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/MachineFrameInfo.h
    M llvm/lib/CodeGen/MachineFunction.cpp
    M llvm/lib/CodeGen/TargetRegisterInfo.cpp

  Log Message:
  -----------
  [CodeGen] Don't check attrs for stack realign (#92564)

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::ForcedRealign`
to be also true when the `stackrealign` attribute is set.



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