[llvm-branch-commits] [llvm] AMDGPU/GlobalISel: AMDGPURegBankLegalize (PR #112864)

[Matt Arsenault via llvm-branch-commits]

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@@ -674,6 +674,14 @@ class MachineRegisterInfo {
     return dyn_cast_if_present<const TargetRegisterClass *>(Val);
   }
 
+  /// Return the register bank of \p Reg.
+  /// This shouldn't be used directly unless \p Reg has a register bank.
+  const RegisterBank *getRegBank(Register Reg) const {
+    assert(isa<const RegisterBank *>(VRegInfo[Reg.id()].first) &&
+           "Register bank not set, wrong accessor");
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arsenm wrote:

Assert redundant with the `cast<>`

https://github.com/llvm/llvm-project/pull/112864