[llvm-branch-commits] [llvm] [TRI] Remove reserved registers in getRegPressureSetLimit (PR #211743)

[Matt Arsenault via llvm-branch-commits]

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@@ -676,6 +676,34 @@ TargetRegisterInfo::prependOffsetExpression(const DIExpression *Expr,
                                       PrependFlags & DIExpression::EntryValue);
 }
 
+/// This is not accurate because two overlapping register sets may have some
+/// nonoverlapping reserved registers. However, computing the allocation order
+/// for all register classes would be too expensive.
+unsigned TargetRegisterInfo::getRegPressureSetLimit(const MachineFunction &MF,
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arsenm wrote:

I don't understand changing TargetRegisterInfo. *All* uses should be moved to use RegisterClassInfo

https://github.com/llvm/llvm-project/pull/211743