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

Example 1 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form11n method isCompatible.

/** {@inheritDoc} */
@Override
public boolean isCompatible(DalvInsn insn) {
    RegisterSpecList regs = insn.getRegisters();
    if (!((insn instanceof CstInsn) && (regs.size() == 1) && unsignedFitsInNibble(regs.get(0).getReg()))) {
        return false;
    }
    CstInsn ci = (CstInsn) insn;
    Constant cst = ci.getConstant();
    if (!(cst instanceof CstLiteralBits)) {
        return false;
    }
    CstLiteralBits cb = (CstLiteralBits) cst;
    return cb.fitsInInt() && signedFitsInNibble(cb.getIntBits());
}

Example 2 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form35c method isCompatible.

/** {@inheritDoc} */
@Override
public boolean isCompatible(DalvInsn insn) {
    if (!(insn instanceof CstInsn)) {
        return false;
    }
    CstInsn ci = (CstInsn) insn;
    int cpi = ci.getIndex();
    if (!unsignedFitsInShort(cpi)) {
        return false;
    }
    Constant cst = ci.getConstant();
    if (!((cst instanceof CstMethodRef) || (cst instanceof CstType))) {
        return false;
    }
    RegisterSpecList regs = ci.getRegisters();
    return (wordCount(regs) >= 0);
}

Example 3 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form35c method writeTo.

/** {@inheritDoc} */
@Override
public void writeTo(AnnotatedOutput out, DalvInsn insn) {
    int cpi = ((CstInsn) insn).getIndex();
    RegisterSpecList regs = explicitize(insn.getRegisters());
    int sz = regs.size();
    int r0 = (sz > 0) ? regs.get(0).getReg() : 0;
    int r1 = (sz > 1) ? regs.get(1).getReg() : 0;
    int r2 = (sz > 2) ? regs.get(2).getReg() : 0;
    int r3 = (sz > 3) ? regs.get(3).getReg() : 0;
    int r4 = (sz > 4) ? regs.get(4).getReg() : 0;
    write(out, opcodeUnit(insn, // encode the fifth operand here
    makeByte(r4, sz)), (short) cpi, codeUnit(r0, r1, r2, r3));
}

Example 4 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form35c method explicitize.

/**
     * Returns a register list which is equivalent to the given one,
     * except that it splits category-2 registers into two explicit
     * entries. This returns the original list if no modification is
     * required
     *
     * @param orig {@code non-null;} the original list
     * @return {@code non-null;} the list with the described transformation
     */
private static RegisterSpecList explicitize(RegisterSpecList orig) {
    int wordCount = wordCount(orig);
    int sz = orig.size();
    if (wordCount == sz) {
        return orig;
    }
    RegisterSpecList result = new RegisterSpecList(wordCount);
    int wordAt = 0;
    for (int i = 0; i < sz; i++) {
        RegisterSpec one = orig.get(i);
        result.set(wordAt, one);
        if (one.getCategory() == 2) {
            result.set(wordAt + 1, RegisterSpec.make(one.getReg() + 1, Type.VOID));
            wordAt += 2;
        } else {
            wordAt++;
        }
    }
    result.setImmutable();
    return result;
}

Example 5 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

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()));
}