[llvm-branch-commits] [llvm] [AMDGPU] Implement CFI for non-kernel functions (PR #164723)

[Matt Arsenault via llvm-branch-commits]

================
@@ -253,6 +351,13 @@ class PrologEpilogSGPRSpillBuilder {
     if (!TmpVGPR)
       report_fatal_error("failed to find free scratch register");
 
+    auto BuildCFI = [&](Register Reg) {
+      TFI->buildCFI(MBB, MI, DL,
+                    MCCFIInstruction::createOffset(
+                        nullptr, MCRI->getDwarfRegNum(Reg, false),
+                        MFI.getObjectOffset(FI) * ST.getWavefrontSize()));
+    };
+    std::optional<Register> CFISuperReg = getCFISuperReg();
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arsenm wrote:

```suggestion
    MCRegister CFISuperReg = getCFISuperReg();
```

https://github.com/llvm/llvm-project/pull/164723