[PATCH] D45189: [MachineOutliner][AArch64] Keep track of functions that use a red zone in AArch64MachineFunctionInfo and use that instead of checking for noredzone in the MachineOutliner

[Jessica Paquette via Phabricator via llvm-commits]

paquette updated this revision to Diff 140853.
paquette edited the summary of this revision.
paquette added a comment.

Updated diff to address comments.

`usesRedZone` is now `hasRedZone`.

`hasRedZone` is now a function that returns an optional. The optional is set either during frame lowering, or on the construction of AArch64FunctionInfo in the case where the IR-level function has the noredzone attribute.

I tried to simplify the test a little, but it needs to be somewhat long to trigger the desired outliner behaviour, unfortunately.


https://reviews.llvm.org/D45189

Files:
  lib/Target/AArch64/AArch64FrameLowering.cpp
  lib/Target/AArch64/AArch64InstrInfo.cpp
  lib/Target/AArch64/AArch64MachineFunctionInfo.h
  test/CodeGen/AArch64/machine-outliner-noredzone.ll

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