[llvm] [CodeGen] Parse frame-pointer attribute once when creating MachineFunction (PR #191974)

[Matt Arsenault via llvm-commits]

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@@ -89,6 +91,7 @@ frameInfo:
   maxAlignment:    4
   adjustsStack:    true
   hasCalls:        true
+  framePointerPolicy: non-leaf
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arsenm wrote:

Add new test to ensure all the keys are covered? 

https://github.com/llvm/llvm-project/pull/191974