[PATCH] D97732: [AArch64][GlobalISel] Enable use of the optsize predicate in the selector.

[Jessica Paquette via Phabricator via llvm-commits]

paquette added inline comments.


================
Comment at: llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp:2438
+          (DefSize == 32 &&
+           (MF.getFunction().hasMinSize() || shouldOptForSize(&MF)))) {
         auto *FPImm = I.getOperand(1).getFPImm();
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aemerson wrote:
> paquette wrote:
> > I would expect `shouldOptForSize` to return true when `minsize` is present and `optsize` is not present.
> > 
> > That case seems pretty atypical though. At least with clang, they always appear together.
> I didn't realize minsize and optsize could co-exist. Yeah I guess it makes sense to move this logic.
Also, why the MachineFunction variant versus the MachineBasicBlock variant? Is there a difference in size if you use the MBB variant?


Repository:
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  https://reviews.llvm.org/D97732/new/

https://reviews.llvm.org/D97732