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

Example 21 with RegisterSpec

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

the class LiteralOpUpgrader method tryReplacingWithConstant.

/**
     * Tries to replace an instruction with a const instruction. The given
     * instruction must have a constant result for it to be replaced.
     *
     * @param insn {@code non-null;} instruction to try to replace
     * @return true if the instruction was replaced
     */
private boolean tryReplacingWithConstant(NormalSsaInsn insn) {
    Insn originalRopInsn = insn.getOriginalRopInsn();
    Rop opcode = originalRopInsn.getOpcode();
    RegisterSpec result = insn.getResult();
    if (result != null && !ssaMeth.isRegALocal(result) && opcode.getOpcode() != RegOps.CONST) {
        TypeBearer type = insn.getResult().getTypeBearer();
        if (type.isConstant() && type.getBasicType() == Type.BT_INT) {
            // Replace the instruction with a constant
            replacePlainInsn(insn, RegisterSpecList.EMPTY, RegOps.CONST, (Constant) type);
            // Remove the source as well if this is a move-result-pseudo
            if (opcode.getOpcode() == RegOps.MOVE_RESULT_PSEUDO) {
                int pred = insn.getBlock().getPredecessors().nextSetBit(0);
                ArrayList<SsaInsn> predInsns = ssaMeth.getBlocks().get(pred).getInsns();
                NormalSsaInsn sourceInsn = (NormalSsaInsn) predInsns.get(predInsns.size() - 1);
                replacePlainInsn(sourceInsn, RegisterSpecList.EMPTY, RegOps.GOTO, null);
            }
            return true;
        }
    }
    return false;
}

Example 22 with RegisterSpec

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

the class NormalSsaInsn method getLocalAssignment.

/** {@inheritDoc} */
@Override
public RegisterSpec getLocalAssignment() {
    RegisterSpec assignment;
    if (insn.getOpcode().getOpcode() == RegOps.MARK_LOCAL) {
        assignment = insn.getSources().get(0);
    } else {
        assignment = getResult();
    }
    if (assignment == null) {
        return null;
    }
    LocalItem local = assignment.getLocalItem();
    if (local == null) {
        return null;
    }
    return assignment;
}

Example 23 with RegisterSpec

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

the class FirstFitLocalCombiningAllocator method adjustAndMapSourceRangeRange.

/**
     * Maps the source registers of the specified instruction such that they
     * will fall in a contiguous range in rop form. Moves are inserted as
     * necessary to allow the range to be allocated.
     *
     * @param insn {@code non-null;} insn whos sources to process
     */
private void adjustAndMapSourceRangeRange(NormalSsaInsn insn) {
    int newRegStart = findRangeAndAdjust(insn);
    RegisterSpecList sources = insn.getSources();
    int szSources = sources.size();
    int nextRopReg = newRegStart;
    for (int i = 0; i < szSources; i++) {
        RegisterSpec source = sources.get(i);
        int sourceReg = source.getReg();
        int category = source.getCategory();
        int curRopReg = nextRopReg;
        nextRopReg += category;
        if (ssaRegsMapped.get(sourceReg)) {
            continue;
        }
        LocalItem localItem = getLocalItemForReg(sourceReg);
        addMapping(source, curRopReg);
        if (localItem != null) {
            markReserved(curRopReg, category);
            ArrayList<RegisterSpec> similarRegisters = localVariables.get(localItem);
            int szSimilar = similarRegisters.size();
            /*
                 * Try to map all SSA registers also associated with
                 * this local.
                 */
            for (int j = 0; j < szSimilar; j++) {
                RegisterSpec similarSpec = similarRegisters.get(j);
                int similarReg = similarSpec.getReg();
                // Don't map anything that's also a source.
                if (-1 != sources.indexOfRegister(similarReg)) {
                    continue;
                }
                // Registers left unmapped will get handled later.
                tryMapReg(similarSpec, curRopReg, category);
            }
        }
    }
}

Example 24 with RegisterSpec

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

the class PhiInsn method toHumanWithInline.

/**
     * Returns human-readable string for listing dumps. This method
     * allows sub-classes to specify extra text.
     *
     * @param extra {@code null-ok;} the argument to print after the opcode
     * @return human-readable string for listing dumps
     */
protected final String toHumanWithInline(String extra) {
    StringBuffer sb = new StringBuffer(80);
    sb.append(SourcePosition.NO_INFO);
    sb.append(": phi");
    if (extra != null) {
        sb.append("(");
        sb.append(extra);
        sb.append(")");
    }
    RegisterSpec result = getResult();
    if (result == null) {
        sb.append(" .");
    } else {
        sb.append(" ");
        sb.append(result.toHuman());
    }
    sb.append(" <-");
    int sz = getSources().size();
    if (sz == 0) {
        sb.append(" .");
    } else {
        for (int i = 0; i < sz; i++) {
            sb.append(" ");
            sb.append(sources.get(i).toHuman() + "[b=" + Hex.u2(operands.get(i).ropLabel) + "]");
        }
    }
    return sb.toString();
}

Example 25 with RegisterSpec

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

the class PhiInsn method mapSourceRegisters.

/** {@inheritDoc} */
@Override
public final void mapSourceRegisters(RegisterMapper mapper) {
    for (Operand o : operands) {
        RegisterSpec old = o.regSpec;
        o.regSpec = mapper.map(old);
        if (old != o.regSpec) {
            getBlock().getParent().onSourceChanged(this, old, o.regSpec);
        }
    }
    sources = null;
}