utils/TableGen/X86DisassemblerTables.cpp

589 /// getDecisionType - Determines whether a ModRM decision with 255 entries can
592 /// @param decision - The decision to be compacted.
593 /// @return         - The compactest available representation for the decision.
594 static ModRMDecisionType getDecisionType(ModRMDecision &decision) {
601     if (decision.instructionIDs[index] != decision.instructionIDs[0])
605        (decision.instructionIDs[index] != decision.instructionIDs[0xc0]))
609        (decision.instructionIDs[index] != decision.instructionIDs[0x00]))
613        (decision.instructionIDs[index] != decision.instructionIDs[index&0xf8]))
617        (decision.instructionIDs[index] != decision.instructionIDs[index&0x38]))
637 ///   to a particular decision type.
639 /// @param dt - The decision type.
646       llvm_unreachable("Unknown decision type");
665                                            ModRMDecision &decision) const {
668   ModRMDecisionType dt = getDecisionType(decision);
670   if (dt == MODRM_ONEENTRY && decision.instructionIDs[0] == 0) {
680       llvm_unreachable("Unknown decision type");
682       ModRMDecision.push_back(decision.instructionIDs[0]);
685       ModRMDecision.push_back(decision.instructionIDs[0x00]);
686       ModRMDecision.push_back(decision.instructionIDs[0xc0]);
690         ModRMDecision.push_back(decision.instructionIDs[index]);
692         ModRMDecision.push_back(decision.instructionIDs[index]);
696         ModRMDecision.push_back(decision.instructionIDs[index]);
698         ModRMDecision.push_back(decision.instructionIDs[index]);
702         ModRMDecision.push_back(decision.instructionIDs[index]);
726       llvm_unreachable("Unknown decision type");
760     auto &decision = opDecision.modRMDecisions[index];
761     ModRMDecisionType dt = getDecisionType(decision);
762     if (!(dt == MODRM_ONEENTRY && decision.instructionIDs[0] == 0))
796                                              ContextDecision &decision,
809                        decision.opcodeDecisions[index]);
1038 void DisassemblerTables::setTableFields(ModRMDecision     &decision,
1044       if (decision.instructionIDs[index] == uid)
1047       if (decision.instructionIDs[index] != 0) {
1051           InstructionSpecifiers[decision.instructionIDs[index]];
1072       decision.instructionIDs[index] = uid;
1087   ContextDecision &decision = *Tables[type];
1098       setTableFields(decision.opcodeDecisions[index].modRMDecisions[opcode],