[llvm] [WIP] Implemented a patch to optimize SGPR spills. (PR #93509)

[Matt Arsenault via llvm-commits]

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@@ -496,8 +506,13 @@ bool StackSlotColoring::RemoveDeadStores(MachineBasicBlock* MBB) {
     ++I;
   }
 
-  for (MachineInstr *MI : toErase)
+  /// FIXED: As this pass preserves SlotIndexesAnalysis result, any
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arsenm wrote:

Don't say "FIXED" 

https://github.com/llvm/llvm-project/pull/93509