[llvm] [ARM] Fix -mno-omit-leaf-frame-pointer flag doesn't works on 32-bit ARM (PR #109628)

[Eli Friedman via llvm-commits]

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@@ -203,6 +203,10 @@ bool ARMFrameLowering::hasFP(const MachineFunction &MF) const {
   const TargetRegisterInfo *RegInfo = MF.getSubtarget().getRegisterInfo();
   const MachineFrameInfo &MFI = MF.getFrameInfo();
 
+  // Check to see if the target want to forcibly keep frame pointer.
+  if (MF.getSubtarget().getFrameLowering()->keepFramePointer(MF))
+    return true;
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efriedma-quic wrote:

This seems fine.

https://github.com/llvm/llvm-project/pull/109628