================
@@ -431,6 +422,19 @@ MachineInstr *GCNDPPCombine::createDPPInst(MachineInstr
&OrigMI,
DPPInst.add(*TII->getNamedOperand(MovMI, AMDGPU::OpName::row_mask));
DPPInst.add(*TII->getNamedOperand(MovMI, AMDGPU::OpName::bank_mask));
DPPInst.addImm(CombBCZ ? 1 : 0);
+
----------------
frederik-h wrote:
Perhaps add a comment explaining why it is necessary to perform this check here
(as in the PR description: "It is not safe to use isOperandLegal on an
instruction that does not have a complete set of operands. ...")?
https://github.com/llvm/llvm-project/pull/155595
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