[llvm] Fix stack layout for frames larger than 2gb (PR #84114)

[Simon Pilgrim via llvm-commits]

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@@ -280,7 +280,7 @@ class MachineFrameInfo {
   /// setup/destroy pseudo instructions (as defined in the TargetFrameInfo
   /// class).  This information is important for frame pointer elimination.
   /// It is only valid during and after prolog/epilog code insertion.
-  unsigned MaxCallFrameSize = ~0u;
+  uint64_t MaxCallFrameSize = ~0ul;
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RKSimon wrote:

Better to use `~UINT64_C(0)` to avoid any long vs long long issues

https://github.com/llvm/llvm-project/pull/84114