[AVR] Enable the frame pointer for all functions

This is a temporary measure while we figure out a way to get the frame
pointer working correctly.

llvm-svn: 301881
diff --git a/llvm/lib/Target/AVR/AVRFrameLowering.cpp b/llvm/lib/Target/AVR/AVRFrameLowering.cpp
index ab42a7a..7e0e761 100644
--- a/llvm/lib/Target/AVR/AVRFrameLowering.cpp
+++ b/llvm/lib/Target/AVR/AVRFrameLowering.cpp
@@ -216,8 +216,9 @@
 bool AVRFrameLowering::hasFP(const MachineFunction &MF) const {
   const AVRMachineFunctionInfo *FuncInfo = MF.getInfo<AVRMachineFunctionInfo>();
 
-  return (FuncInfo->getHasSpills() || FuncInfo->getHasAllocas() ||
-          FuncInfo->getHasStackArgs());
+  // TODO: We do not always need a frame pointer.
+  // This can be optimised.
+  return true;
 }
 
 bool AVRFrameLowering::spillCalleeSavedRegisters(