Examples with Operand org.jikesrvm.compilers.opt.ir.operand.Operand used on opensource projects

Example 96 with Operand

use of org.jikesrvm.compilers.opt.ir.operand.Operand in project JikesRVM by JikesRVM.

the class Simplifier method intShl.

private static DefUseEffect intShl(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_INTEGER_OPS) {
        Operand op2 = Binary.getVal2(s);
        Operand op1 = Binary.getVal1(s);
        if (op2.isIntConstant()) {
            int val2 = op2.asIntConstant().value;
            if (op1.isIntConstant()) {
                // BOTH CONSTANTS: FOLD
                int val1 = op1.asIntConstant().value;
                Move.mutate(s, INT_MOVE, Binary.getClearResult(s), IC(val1 << val2));
                return DefUseEffect.MOVE_FOLDED;
            } else {
                // ONLY OP2 IS CONSTANT: ATTEMPT TO APPLY AXIOMS
                if (val2 == 0) {
                    // x << 0 == x
                    Move.mutate(s, INT_MOVE, Binary.getClearResult(s), Binary.getClearVal1(s));
                    return DefUseEffect.MOVE_REDUCED;
                }
                if ((val2 >= BITS_IN_INT) || (val2 < 0)) {
                    // x << 32 == 0
                    Move.mutate(s, INT_MOVE, Binary.getClearResult(s), IC(0));
                    return DefUseEffect.MOVE_FOLDED;
                }
            }
        } else if (op1.isIntConstant()) {
            int val1 = op1.asIntConstant().value;
            // ONLY OP1 IS CONSTANT: ATTEMPT TO APPLY AXIOMS
            if (val1 == 0) {
                // 0 << x == 0
                Move.mutate(s, INT_MOVE, Binary.getClearResult(s), IC(0));
                return DefUseEffect.MOVE_FOLDED;
            }
        }
    }
    return DefUseEffect.UNCHANGED;
}

Example 97 with Operand

use of org.jikesrvm.compilers.opt.ir.operand.Operand in project JikesRVM by JikesRVM.

the class Simplifier method refNot.

private static DefUseEffect refNot(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_REF_OPS) {
        Operand op = Unary.getVal(s);
        if (op.isConstant() && !op.isMovableObjectConstant()) {
            // CONSTANT: FOLD
            Word val = getAddressValue(op).toWord();
            Move.mutate(s, REF_MOVE, Unary.getClearResult(s), AC(val.not().toAddress()));
            return DefUseEffect.MOVE_FOLDED;
        }
    }
    return DefUseEffect.UNCHANGED;
}

Example 98 with Operand

use of org.jikesrvm.compilers.opt.ir.operand.Operand in project JikesRVM by JikesRVM.

the class Simplifier method intShr.

private static DefUseEffect intShr(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_INTEGER_OPS) {
        Operand op1 = Binary.getVal1(s);
        Operand op2 = Binary.getVal2(s);
        if (op2.isIntConstant()) {
            int val2 = op2.asIntConstant().value;
            if (op1.isIntConstant()) {
                // BOTH CONSTANTS: FOLD
                int val1 = op1.asIntConstant().value;
                Move.mutate(s, INT_MOVE, Binary.getClearResult(s), IC(val1 >> val2));
                return DefUseEffect.MOVE_FOLDED;
            } else {
                // ONLY OP2 IS CONSTANT: ATTEMPT TO APPLY AXIOMS
                if (val2 == 0) {
                    // x >> 0 == x
                    Move.mutate(s, INT_MOVE, Binary.getClearResult(s), Binary.getClearVal1(s));
                    return DefUseEffect.MOVE_REDUCED;
                }
                if ((val2 >= BITS_IN_INT) || (val2 < 0)) {
                    // x >> 32 == x >> 31
                    Binary.setVal2(s, IC(31));
                    return DefUseEffect.UNCHANGED;
                }
            }
        } else if (op1.isIntConstant()) {
            int val1 = op1.asIntConstant().value;
            // ONLY OP1 IS CONSTANT: ATTEMPT TO APPLY AXIOMS
            if ((val1 == -1) || (val1 == 0)) {
                // -1 >> x == -1,0 >> x == 0
                Move.mutate(s, INT_MOVE, Binary.getClearResult(s), op1);
                return DefUseEffect.MOVE_FOLDED;
            }
        }
    }
    return DefUseEffect.UNCHANGED;
}

Example 99 with Operand

use of org.jikesrvm.compilers.opt.ir.operand.Operand in project JikesRVM by JikesRVM.

the class Simplifier method int2Float.

private static DefUseEffect int2Float(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_FLOAT_OPS) {
        Operand op = Unary.getVal(s);
        if (op.isIntConstant()) {
            // CONSTANT: FOLD
            int val = op.asIntConstant().value;
            Move.mutate(s, FLOAT_MOVE, Unary.getClearResult(s), FC(val));
            return DefUseEffect.MOVE_FOLDED;
        }
    }
    return DefUseEffect.UNCHANGED;
}

Example 100 with Operand

use of org.jikesrvm.compilers.opt.ir.operand.Operand in project JikesRVM by JikesRVM.

the class Simplifier method int2AddrSigExt.

private static DefUseEffect int2AddrSigExt(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_REF_OPS) {
        Operand op = Unary.getVal(s);
        if (op.isIntConstant()) {
            // CONSTANT: FOLD
            int val = op.asIntConstant().value;
            Move.mutate(s, REF_MOVE, Unary.getClearResult(s), AC(Address.fromIntSignExtend(val)));
            return DefUseEffect.MOVE_FOLDED;
        }
    }
    return DefUseEffect.UNCHANGED;
}