[llvm] [CodeGen][RAGreedy] Inform LiveDebugVariables about snippets spilled by InlineSpiller. (PR #109962)

[Bevin Hansson via llvm-commits]

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@@ -167,8 +167,8 @@ class InlineSpiller : public Spiller {
   // All registers to spill to StackSlot, including the main register.
   SmallVector<Register, 8> RegsToSpill;
 
-  // All registers that were replaced by the spiller. This includes registers
-  // that were rematerialized; rematted regs are removed from RegsToSpill.
+  // All registers that were replaced by the spiller through some other method,
+  // e.g. rematerialization.
   SmallVector<Register, 8> RegsReplaced;
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bevin-hansson wrote:

I guess we could refrain from erasing the regs from the RegsToSpill list and keep track of where the removed regs are located in the list. But I don't know if that's really cleaner.

https://github.com/llvm/llvm-project/pull/109962