[llvm-branch-commits] [llvm] [AArch64] Prepare for split ZPR and PPR area allocation (NFCI) (PR #142391)

[Sander de Smalen via llvm-branch-commits]

================
@@ -784,8 +785,8 @@ AArch64RegisterInfo::useFPForScavengingIndex(const MachineFunction &MF) const {
   assert((!MF.getSubtarget<AArch64Subtarget>().hasSVE() ||
           AFI->hasCalculatedStackSizeSVE()) &&
          "Expected SVE area to be calculated by this point");
-  return TFI.hasFP(MF) && !hasStackRealignment(MF) && !AFI->getStackSizeSVE() &&
-         !AFI->hasStackHazardSlotIndex();
+  return TFI.hasFP(MF) && !hasStackRealignment(MF) && !AFI->getStackSizeZPR() &&
+         !AFI->getStackSizePPR() && !AFI->hasStackHazardSlotIndex();
----------------
sdesmalen-arm wrote:

nit:
```suggestion
  return TFI.hasFP(MF) && !hasStackRealignment(MF) && !AFI->hasSVEStackSize() &&
         !AFI->hasStackHazardSlotIndex();
```

https://github.com/llvm/llvm-project/pull/142391