nvc0/ir: patch vertex count is stored in the upper bits
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@ -1525,6 +1525,10 @@ NVC0LoweringPass::handleRDSV(Instruction *i)
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i->op = OP_MOV;
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i->setSrc(0, bld.mkImm((sv == SV_NTID || sv == SV_NCTAID) ? 1 : 0));
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}
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if (sv == SV_VERTEX_COUNT) {
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bld.setPosition(i, true);
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bld.mkOp2(OP_EXTBF, TYPE_U32, i->getDef(0), i->getDef(0), bld.mkImm(0x808));
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}
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return true;
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}
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