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

Example 6 with TIBConstantOperand

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

the class Simplifier method getSuperclassIdsFromTib.

private static DefUseEffect getSuperclassIdsFromTib(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_TIB_OPS) {
        Operand tibOp = Unary.getVal(s);
        if (tibOp.isTIBConstant()) {
            TIBConstantOperand tib = tibOp.asTIBConstant();
            Move.mutate(s, REF_MOVE, Unary.getClearResult(s), new ObjectConstantOperand(tib.value.getSuperclassIds(), Offset.zero()));
            return DefUseEffect.MOVE_FOLDED;
        }
    }
    return DefUseEffect.UNCHANGED;
}

Example 7 with TIBConstantOperand

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

the class Simplifier method getTypeFromTib.

private static DefUseEffect getTypeFromTib(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_TIB_OPS) {
        Operand tibOp = Unary.getVal(s);
        if (tibOp.isTIBConstant()) {
            TIBConstantOperand tib = tibOp.asTIBConstant();
            Move.mutate(s, REF_MOVE, Unary.getClearResult(s), new ObjectConstantOperand(tib.value, Offset.zero()));
            return DefUseEffect.MOVE_FOLDED;
        }
    }
    return DefUseEffect.UNCHANGED;
}

Example 8 with TIBConstantOperand

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

the class Simplifier method getDoesImplementFromTib.

private static DefUseEffect getDoesImplementFromTib(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_TIB_OPS) {
        Operand tibOp = Unary.getVal(s);
        if (tibOp.isTIBConstant()) {
            TIBConstantOperand tib = tibOp.asTIBConstant();
            Move.mutate(s, REF_MOVE, Unary.getClearResult(s), new ObjectConstantOperand(tib.value.getDoesImplement(), Offset.zero()));
            return DefUseEffect.MOVE_FOLDED;
        }
    }
    return DefUseEffect.UNCHANGED;
}

Example 9 with TIBConstantOperand

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

the class Simplifier method getObjTib.

private static DefUseEffect getObjTib(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_TIB_OPS) {
        Operand op = GuardedUnary.getVal(s);
        if (op.isNullConstant()) {
            // Simplify to an unreachable operand, this instruction is dead code
            // guarded by a nullcheck that should already have been simplified
            RegisterOperand result = GetField.getClearResult(s);
            Move.mutate(s, IRTools.getMoveOp(result.getType()), result, new UnreachableOperand());
            return DefUseEffect.MOVE_FOLDED;
        } else if (op.isConstant()) {
            final TypeReference typeRef = op.getType();
            if (typeRef.isResolved()) {
                Move.mutate(s, REF_MOVE, GuardedUnary.getClearResult(s), new TIBConstantOperand(op.getType().peekType()));
                return DefUseEffect.MOVE_FOLDED;
            }
        } else {
            RegisterOperand rop = op.asRegister();
            TypeReference typeRef = rop.getType();
            // Is the type of this register only one possible type?
            if (typeRef.isResolved() && rop.isPreciseType() && typeRef.resolve().isInstantiated()) {
                // before simplifying ensure that the type is instantiated, this stops
                // constant propagation potentially moving the TIB constant before the
                // runtime call that instantiates it
                Move.mutate(s, REF_MOVE, GuardedUnary.getClearResult(s), new TIBConstantOperand(typeRef.peekType()));
                return DefUseEffect.MOVE_FOLDED;
            }
        }
    }
    return DefUseEffect.UNCHANGED;
}

Example 10 with TIBConstantOperand

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

the class Simplifier method getArrayElementTibFromTib.

private static DefUseEffect getArrayElementTibFromTib(Instruction s, OptOptions opts) {
    if (opts.SIMPLIFY_TIB_OPS) {
        Operand tibOp = Unary.getVal(s);
        if (tibOp.isTIBConstant()) {
            TIBConstantOperand tib = tibOp.asTIBConstant();
            Move.mutate(s, REF_MOVE, Unary.getClearResult(s), new TIBConstantOperand(tib.value.asArray().getElementType()));
            return DefUseEffect.MOVE_FOLDED;
        }
    }
    return DefUseEffect.UNCHANGED;
}