[llvm] [TRI] Remove reserved registers in getRegPressureSetLimit (PR #118787)

[Pengcheng Wang via llvm-commits]

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@@ -1327,47 +1327,6 @@ class HighRegisterPressureDetector {
   void computePressureSetLimit(const RegisterClassInfo &RCI) {
     for (unsigned PSet = 0; PSet < PSetNum; PSet++)
       PressureSetLimit[PSet] = TRI->getRegPressureSetLimit(MF, PSet);
-
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wangpc-pp wrote:

And I think just removing `fixed` registers is not enough here.

https://github.com/llvm/llvm-project/pull/118787