lib/cfg/instruction-sets/base.ts

// Copyright (c) 2023, Compiler Explorer Authors
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export enum InstructionType {
    jmp,
    conditionalJmpInst,
    notRetInst,
    retInst,
}

export class BaseInstructionSetInfo {
    static get key() {
        return 'base';
    }

    isJmpInstruction(x: string) {
        return x.trim()[0] === 'j' || x.match(/\bb\.*(eq|ne|cs|hs|cc|lo|hi|ls|ge|lt|gt|le|rge|rlt)?\b/);
    }

    getInstructionType(inst: string) {
        if (inst.includes('jmp') || inst.includes(' b ')) return InstructionType.jmp;
        else if (this.isJmpInstruction(inst)) return InstructionType.conditionalJmpInst;
        else if (inst.includes(' ret')) {
            return InstructionType.retInst;
        } else {
            return InstructionType.notRetInst;
        }
    }
}