[llvm] [AMDGPU] Reject 64-bit VOP1 DPP on gfx8/gfx9 (PR #220834)

[Arseniy Obolenskiy via llvm-commits]

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@@ -1642,6 +1642,11 @@ multiclass VOP1_Real_vi <bits<10> op> {
       VOP_DPP_Real<!cast<VOP1_DPP_Pseudo>(NAME#"_dpp"), SIEncodingFamily.VI>,
       VOP1_DPPe<op{7-0}, !cast<VOP1_DPP_Pseudo>(NAME#"_dpp")> {
         let AssemblerPredicate = isGFX8GFX9;
+        // The override above drops the pseudo HasDPALU_DPP AssemblerPredicate.
+        let OtherPredicates = !listconcat(
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aobolensk wrote:

Reworked

https://github.com/llvm/llvm-project/pull/220834