[llvm] [NVPTX] Fixup NVPTXPrologEpilogPass for opt-bisect-limit (PR #144136)

[Alex MacLean via llvm-commits]

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@@ -41,14 +41,52 @@ class NVPTXPrologEpilogPass : public MachineFunctionPass {
 private:
   void calculateFrameObjectOffsets(MachineFunction &Fn);
 };
-}
+} // end anonymous namespace
 
 MachineFunctionPass *llvm::createNVPTXPrologEpilogPass() {
   return new NVPTXPrologEpilogPass();
 }
 
 char NVPTXPrologEpilogPass::ID = 0;
 
+INITIALIZE_PASS(NVPTXPrologEpilogPass, DEBUG_TYPE,
+                "NVPTX Prologue/Epilogue Insertion", false, false)
+
+static bool replaceFrameIndexDebugInstr(MachineFunction &MF, MachineInstr &MI,
+                                        unsigned OpIdx) {
+  const TargetFrameLowering *TFI = MF.getSubtarget().getFrameLowering();
+  const TargetRegisterInfo &TRI = *MF.getSubtarget().getRegisterInfo();
+  if (MI.isDebugValue()) {
----------------
AlexMaclean wrote:

I prefer to keep the code here looking as much like PrologEpilogInserter as possible (even if we're not adding the other cases which are handled there).

https://github.com/llvm/llvm-project/pull/144136