[llvm] AMDGPU/GlobalISel: Regbanklegalize rules for G_UNMERGE_VALUES (PR #171653)

Fri Dec 19 04:40:49 PST 2025

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@@ -910,6 +910,55 @@ bool RegBankLegalizeHelper::lower(MachineInstr &MI,
     return lowerUnpackAExt(MI);
   case WidenMMOToS32:
     return widenMMOToS32(cast<GAnyLoad>(MI));
+  case VerifyAllSgpr: {
+    for (unsigned i = 0; i < MI.getNumOperands(); ++i)
+      assert(MRI.getRegBankOrNull(MI.getOperand(i).getReg()) == SgprRB);
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mbrkusanin wrote:

```suggestion
    assert(llvm::all_of(MI.operands(), [&](const MachineOperand &Op) {
      return MRI.getRegBankOrNull(Op.getReg()) == SgprRB;
    }));
```

https://github.com/llvm/llvm-project/pull/171653
