Examples with RegisterSpecList com.taobao.android.dx.rop.code.RegisterSpecList used on opensource projects

Example 21 with RegisterSpecList

use of com.taobao.android.dx.rop.code.RegisterSpecList in project atlas by alibaba.

the class Form22x method compatibleRegs.

/** {@inheritDoc} */
@Override
public BitSet compatibleRegs(DalvInsn insn) {
    RegisterSpecList regs = insn.getRegisters();
    BitSet bits = new BitSet(2);
    bits.set(0, unsignedFitsInByte(regs.get(0).getReg()));
    bits.set(1, unsignedFitsInShort(regs.get(1).getReg()));
    return bits;
}

Example 22 with RegisterSpecList

use of com.taobao.android.dx.rop.code.RegisterSpecList in project atlas by alibaba.

the class DeadCodeRemover method pruneDeadInstructions.

/**
     * Removes all instructions from every unreachable block.
     */
private void pruneDeadInstructions() {
    HashSet<SsaInsn> deletedInsns = new HashSet<SsaInsn>();
    ssaMeth.computeReachability();
    for (SsaBasicBlock block : ssaMeth.getBlocks()) {
        if (block.isReachable())
            continue;
        // Prune instructions from unreachable blocks
        for (int i = 0; i < block.getInsns().size(); i++) {
            SsaInsn insn = block.getInsns().get(i);
            RegisterSpecList sources = insn.getSources();
            int sourcesSize = sources.size();
            // Delete this instruction completely if it has sources
            if (sourcesSize != 0) {
                deletedInsns.add(insn);
            }
            // Delete this instruction from all usage lists.
            for (int j = 0; j < sourcesSize; j++) {
                RegisterSpec source = sources.get(j);
                useList[source.getReg()].remove(insn);
            }
            // Remove this instruction result from the sources of any phis
            RegisterSpec result = insn.getResult();
            if (result == null)
                continue;
            for (SsaInsn use : useList[result.getReg()]) {
                if (use instanceof PhiInsn) {
                    PhiInsn phiUse = (PhiInsn) use;
                    phiUse.removePhiRegister(result);
                }
            }
        }
    }
    ssaMeth.deleteInsns(deletedInsns);
}

Example 23 with RegisterSpecList

use of com.taobao.android.dx.rop.code.RegisterSpecList in project atlas by alibaba.

the class Form3rc method isCompatible.

/** {@inheritDoc} */
@Override
public boolean isCompatible(DalvInsn insn) {
    if (!(insn instanceof CstInsn)) {
        return false;
    }
    CstInsn ci = (CstInsn) insn;
    int cpi = ci.getIndex();
    Constant cst = ci.getConstant();
    if (!unsignedFitsInShort(cpi)) {
        return false;
    }
    if (!((cst instanceof CstMethodRef) || (cst instanceof CstType))) {
        return false;
    }
    RegisterSpecList regs = ci.getRegisters();
    int sz = regs.size();
    return (regs.size() == 0) || (isRegListSequential(regs) && unsignedFitsInShort(regs.get(0).getReg()) && unsignedFitsInByte(regs.getWordCount()));
}

Example 24 with RegisterSpecList

use of com.taobao.android.dx.rop.code.RegisterSpecList in project atlas by alibaba.

the class Form51l method writeTo.

/** {@inheritDoc} */
@Override
public void writeTo(AnnotatedOutput out, DalvInsn insn) {
    RegisterSpecList regs = insn.getRegisters();
    long value = ((CstLiteral64) ((CstInsn) insn).getConstant()).getLongBits();
    write(out, opcodeUnit(insn, regs.get(0).getReg()), value);
}

Example 25 with RegisterSpecList

use of com.taobao.android.dx.rop.code.RegisterSpecList in project atlas by alibaba.

the class Form31c method compatibleRegs.

/** {@inheritDoc} */
@Override
public BitSet compatibleRegs(DalvInsn insn) {
    RegisterSpecList regs = insn.getRegisters();
    int sz = regs.size();
    BitSet bits = new BitSet(sz);
    boolean compat = unsignedFitsInByte(regs.get(0).getReg());
    if (sz == 1) {
        bits.set(0, compat);
    } else {
        if (regs.get(0).getReg() == regs.get(1).getReg()) {
            bits.set(0, compat);
            bits.set(1, compat);
        }
    }
    return bits;
}