nv50/ir/opt: optimize u32 MOD by power of 2 into AND
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@ -698,6 +698,14 @@ ConstantFolding::opnd(Instruction *i, ImmediateValue *src, int s)
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}
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break;
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case OP_MOD:
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if (i->sType == TYPE_U32 && imm.isPow2()) {
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bld.setPosition(i, false);
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i->op = OP_AND;
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i->setSrc(1, bld.loadImm(NULL, imm.reg.data.u32 - 1));
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}
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break;
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case OP_SET: // TODO: SET_AND,OR,XOR
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{
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CmpInstruction *si = findOriginForTestWithZero(i->getSrc(t));
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