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

Example 16 with IntConstantOperand

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

the class ExpandRuntimeServices method perform.

/**
 * Given an HIR, expand operators that are implemented as calls to
 * runtime service methods. This method should be called as one of the
 * first steps in lowering HIR into LIR.
 *
 * @param ir  The HIR to expand
 */
@Override
public void perform(IR ir) {
    // resync generation context -- yuck...
    ir.getGc().resync();
    for (Instruction inst = ir.firstInstructionInCodeOrder(); inst != null; inst = next) {
        next = inst.nextInstructionInCodeOrder();
        int opcode = inst.getOpcode();
        switch(opcode) {
            case NEW_opcode:
                {
                    TypeOperand Type = New.getClearType(inst);
                    RVMClass cls = (RVMClass) Type.getVMType();
                    IntConstantOperand hasFinalizer = IRTools.IC(cls.hasFinalizer() ? 1 : 0);
                    RVMMethod callSite = inst.position().getMethod();
                    IntConstantOperand allocator = IRTools.IC(MemoryManager.pickAllocator(cls, callSite));
                    IntConstantOperand align = IRTools.IC(ObjectModel.getAlignment(cls));
                    IntConstantOperand offset = IRTools.IC(ObjectModel.getOffsetForAlignment(cls, false));
                    Operand tib = ConvertToLowLevelIR.getTIB(inst, ir, Type);
                    if (VM.BuildForIA32 && VM.runningVM) {
                        // shield BC2IR from address constants
                        RegisterOperand tmp = ir.regpool.makeTemp(TypeReference.TIB);
                        inst.insertBefore(Move.create(REF_MOVE, tmp, tib));
                        tib = tmp.copyRO();
                    }
                    IntConstantOperand site = IRTools.IC(MemoryManager.getAllocationSite(true));
                    RVMMethod target = Entrypoints.resolvedNewScalarMethod;
                    Call.mutate7(inst, CALL, New.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), IRTools.IC(cls.getInstanceSize()), tib, hasFinalizer, allocator, align, offset, site);
                    next = inst.prevInstructionInCodeOrder();
                    if (ir.options.H2L_INLINE_NEW) {
                        if (inst.getBasicBlock().getInfrequent())
                            container.counter1++;
                        container.counter2++;
                        if (!ir.options.FREQ_FOCUS_EFFORT || !inst.getBasicBlock().getInfrequent()) {
                            inline(inst, ir);
                        }
                    }
                }
                break;
            case NEW_UNRESOLVED_opcode:
                {
                    int typeRefId = New.getType(inst).getTypeRef().getId();
                    RVMMethod target = Entrypoints.unresolvedNewScalarMethod;
                    IntConstantOperand site = IRTools.IC(MemoryManager.getAllocationSite(true));
                    Call.mutate2(inst, CALL, New.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), IRTools.IC(typeRefId), site);
                }
                break;
            case NEWARRAY_opcode:
                {
                    TypeOperand Array = NewArray.getClearType(inst);
                    RVMArray array = (RVMArray) Array.getVMType();
                    Operand numberElements = NewArray.getClearSize(inst);
                    boolean inline = numberElements instanceof IntConstantOperand;
                    Operand width = IRTools.IC(array.getLogElementSize());
                    Operand headerSize = IRTools.IC(ObjectModel.computeArrayHeaderSize(array));
                    RVMMethod callSite = inst.position().getMethod();
                    IntConstantOperand allocator = IRTools.IC(MemoryManager.pickAllocator(array, callSite));
                    IntConstantOperand align = IRTools.IC(ObjectModel.getAlignment(array));
                    IntConstantOperand offset = IRTools.IC(ObjectModel.getOffsetForAlignment(array, false));
                    Operand tib = ConvertToLowLevelIR.getTIB(inst, ir, Array);
                    if (VM.BuildForIA32 && VM.runningVM) {
                        // shield BC2IR from address constants
                        RegisterOperand tmp = ir.regpool.makeTemp(TypeReference.TIB);
                        inst.insertBefore(Move.create(REF_MOVE, tmp, tib));
                        tib = tmp.copyRO();
                    }
                    IntConstantOperand site = IRTools.IC(MemoryManager.getAllocationSite(true));
                    RVMMethod target = Entrypoints.resolvedNewArrayMethod;
                    Call.mutate8(inst, CALL, NewArray.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), numberElements, width, headerSize, tib, allocator, align, offset, site);
                    next = inst.prevInstructionInCodeOrder();
                    if (inline && ir.options.H2L_INLINE_NEW) {
                        if (inst.getBasicBlock().getInfrequent())
                            container.counter1++;
                        container.counter2++;
                        if (!ir.options.FREQ_FOCUS_EFFORT || !inst.getBasicBlock().getInfrequent()) {
                            inline(inst, ir);
                        }
                    }
                }
                break;
            case NEWARRAY_UNRESOLVED_opcode:
                {
                    int typeRefId = NewArray.getType(inst).getTypeRef().getId();
                    Operand numberElements = NewArray.getClearSize(inst);
                    RVMMethod target = Entrypoints.unresolvedNewArrayMethod;
                    IntConstantOperand site = IRTools.IC(MemoryManager.getAllocationSite(true));
                    Call.mutate3(inst, CALL, NewArray.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), numberElements, IRTools.IC(typeRefId), site);
                }
                break;
            case NEWOBJMULTIARRAY_opcode:
                {
                    int dimensions = Multianewarray.getNumberOfDimensions(inst);
                    RVMMethod callSite = inst.position().getMethod();
                    int typeRefId = Multianewarray.getType(inst).getTypeRef().getId();
                    if (dimensions == 2) {
                        RVMMethod target = Entrypoints.optNew2DArrayMethod;
                        Call.mutate4(inst, CALL, Multianewarray.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), IRTools.IC(callSite.getId()), Multianewarray.getClearDimension(inst, 0), Multianewarray.getClearDimension(inst, 1), IRTools.IC(typeRefId));
                    } else {
                        // Step 1: Create an int array to hold the dimensions.
                        TypeOperand dimArrayType = new TypeOperand(RVMArray.IntArray);
                        RegisterOperand dimArray = ir.regpool.makeTemp(TypeReference.IntArray);
                        dimArray.setPreciseType();
                        next = NewArray.create(NEWARRAY, dimArray, dimArrayType, new IntConstantOperand(dimensions));
                        inst.insertBefore(next);
                        // Step 2: Assign the dimension values to dimArray
                        for (int i = 0; i < dimensions; i++) {
                            LocationOperand loc = new LocationOperand(TypeReference.Int);
                            inst.insertBefore(AStore.create(INT_ASTORE, Multianewarray.getClearDimension(inst, i), dimArray.copyD2U(), IRTools.IC(i), loc, IRTools.TG()));
                        }
                        // Step 3. Plant call to OptLinker.newArrayArray
                        RVMMethod target = Entrypoints.optNewArrayArrayMethod;
                        Call.mutate3(inst, CALL, Multianewarray.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), IRTools.IC(callSite.getId()), dimArray.copyD2U(), IRTools.IC(typeRefId));
                    }
                }
                break;
            case ATHROW_opcode:
                {
                    RVMMethod target = Entrypoints.athrowMethod;
                    MethodOperand methodOp = MethodOperand.STATIC(target);
                    // Record the fact that this is a non-returning call.
                    methodOp.setIsNonReturningCall(true);
                    Call.mutate1(inst, CALL, null, IRTools.AC(target.getOffset()), methodOp, Athrow.getClearValue(inst));
                }
                break;
            case MONITORENTER_opcode:
                {
                    Operand ref = MonitorOp.getClearRef(inst);
                    RVMType refType = ref.getType().peekType();
                    if (refType != null && !refType.getThinLockOffset().isMax()) {
                        RVMMethod target = Entrypoints.inlineLockMethod;
                        Call.mutate2(inst, CALL, null, IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), MonitorOp.getClearGuard(inst), ref, IRTools.AC(refType.getThinLockOffset()));
                        next = inst.prevInstructionInCodeOrder();
                        if (inst.getBasicBlock().getInfrequent())
                            container.counter1++;
                        container.counter2++;
                        if (!ir.options.FREQ_FOCUS_EFFORT || !inst.getBasicBlock().getInfrequent()) {
                            inline(inst, ir);
                        }
                    } else {
                        RVMMethod target = Entrypoints.lockMethod;
                        Call.mutate1(inst, CALL, null, IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), MonitorOp.getClearGuard(inst), ref);
                    }
                }
                break;
            case MONITOREXIT_opcode:
                {
                    Operand ref = MonitorOp.getClearRef(inst);
                    RVMType refType = ref.getType().peekType();
                    if (refType != null && !refType.getThinLockOffset().isMax()) {
                        RVMMethod target = Entrypoints.inlineUnlockMethod;
                        Call.mutate2(inst, CALL, null, IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), MonitorOp.getClearGuard(inst), ref, IRTools.AC(refType.getThinLockOffset()));
                        next = inst.prevInstructionInCodeOrder();
                        if (inst.getBasicBlock().getInfrequent())
                            container.counter1++;
                        container.counter2++;
                        if (!ir.options.FREQ_FOCUS_EFFORT || !inst.getBasicBlock().getInfrequent()) {
                            inline(inst, ir);
                        }
                    } else {
                        RVMMethod target = Entrypoints.unlockMethod;
                        Call.mutate1(inst, CALL, null, IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), MonitorOp.getClearGuard(inst), ref);
                    }
                }
                break;
            case REF_ASTORE_opcode:
                {
                    if (NEEDS_OBJECT_ASTORE_BARRIER) {
                        RVMMethod target = Entrypoints.objectArrayWriteBarrierMethod;
                        Instruction wb = Call.create3(CALL, null, IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), AStore.getClearGuard(inst), AStore.getArray(inst).copy(), AStore.getIndex(inst).copy(), AStore.getValue(inst).copy());
                        replaceInstructionWithBarrier(inst, wb);
                        if (ir.options.H2L_INLINE_WRITE_BARRIER) {
                            inline(wb, ir, true);
                        }
                    }
                }
                break;
            case BYTE_ASTORE_opcode:
                {
                    if (NEEDS_BYTE_ASTORE_BARRIER) {
                        primitiveArrayStoreHelper(Entrypoints.byteArrayWriteBarrierMethod, inst, ir);
                    }
                }
                break;
            case DOUBLE_ASTORE_opcode:
                {
                    if (NEEDS_DOUBLE_ASTORE_BARRIER) {
                        primitiveArrayStoreHelper(Entrypoints.doubleArrayWriteBarrierMethod, inst, ir);
                    }
                }
                break;
            case FLOAT_ASTORE_opcode:
                {
                    if (NEEDS_FLOAT_ASTORE_BARRIER) {
                        primitiveArrayStoreHelper(Entrypoints.floatArrayWriteBarrierMethod, inst, ir);
                    }
                }
                break;
            case INT_ASTORE_opcode:
                {
                    if (NEEDS_INT_ASTORE_BARRIER) {
                        primitiveArrayStoreHelper(Entrypoints.intArrayWriteBarrierMethod, inst, ir);
                    }
                }
                break;
            case LONG_ASTORE_opcode:
                {
                    if (NEEDS_LONG_ASTORE_BARRIER) {
                        primitiveArrayStoreHelper(Entrypoints.longArrayWriteBarrierMethod, inst, ir);
                    }
                }
                break;
            case SHORT_ASTORE_opcode:
                {
                    TypeReference type = AStore.getLocation(inst).getElementType();
                    if (NEEDS_SHORT_ASTORE_BARRIER && type.isShortType()) {
                        primitiveArrayStoreHelper(Entrypoints.shortArrayWriteBarrierMethod, inst, ir);
                    } else if (NEEDS_CHAR_ASTORE_BARRIER) {
                        if (VM.VerifyAssertions)
                            VM._assert(type.isCharType());
                        primitiveArrayStoreHelper(Entrypoints.charArrayWriteBarrierMethod, inst, ir);
                    }
                }
                break;
            case REF_ALOAD_opcode:
                {
                    if (NEEDS_OBJECT_ALOAD_BARRIER) {
                        RVMMethod target = Entrypoints.objectArrayReadBarrierMethod;
                        Instruction rb = Call.create2(CALL, ALoad.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), ALoad.getClearGuard(inst), ALoad.getArray(inst).copy(), ALoad.getIndex(inst).copy());
                        replaceInstructionWithBarrier(inst, rb);
                        inline(rb, ir, true);
                    }
                }
                break;
            case PUTFIELD_opcode:
                {
                    if (NEEDS_OBJECT_PUTFIELD_BARRIER) {
                        LocationOperand loc = PutField.getLocation(inst);
                        FieldReference fieldRef = loc.getFieldRef();
                        if (!fieldRef.getFieldContentsType().isPrimitiveType()) {
                            // reference PUTFIELD
                            RVMField field = fieldRef.peekResolvedField();
                            if (field == null || !field.isUntraced()) {
                                RVMMethod target = Entrypoints.objectFieldWriteBarrierMethod;
                                Instruction wb = Call.create4(CALL, null, IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), PutField.getClearGuard(inst), PutField.getRef(inst).copy(), PutField.getValue(inst).copy(), PutField.getOffset(inst).copy(), IRTools.IC(fieldRef.getId()));
                                replaceInstructionWithBarrier(inst, wb);
                                if (ir.options.H2L_INLINE_WRITE_BARRIER) {
                                    inline(wb, ir, true);
                                }
                            }
                        } else {
                            // primitive PUTFIELD
                            if (NEEDS_BOOLEAN_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isBooleanType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.booleanFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_BYTE_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isByteType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.byteFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_CHAR_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isCharType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.charFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_DOUBLE_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isDoubleType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.doubleFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_FLOAT_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isFloatType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.floatFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_INT_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isIntType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.intFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_LONG_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isLongType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.longFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_SHORT_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isShortType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.shortFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_WORD_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isWordType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.wordFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_ADDRESS_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isAddressType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.addressFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_EXTENT_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isExtentType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.extentFieldWriteBarrierMethod, inst, ir, fieldRef);
                            } else if (NEEDS_OFFSET_PUTFIELD_BARRIER && fieldRef.getFieldContentsType().isOffsetType()) {
                                primitiveObjectFieldStoreHelper(Entrypoints.offsetFieldWriteBarrierMethod, inst, ir, fieldRef);
                            }
                        }
                    }
                }
                break;
            case GETFIELD_opcode:
                {
                    if (NEEDS_OBJECT_GETFIELD_BARRIER) {
                        LocationOperand loc = GetField.getLocation(inst);
                        FieldReference fieldRef = loc.getFieldRef();
                        if (GetField.getResult(inst).getType().isReferenceType()) {
                            RVMField field = fieldRef.peekResolvedField();
                            if (field == null || !field.isUntraced()) {
                                RVMMethod target = Entrypoints.objectFieldReadBarrierMethod;
                                Instruction rb = Call.create3(CALL, GetField.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), GetField.getClearGuard(inst), GetField.getRef(inst).copy(), GetField.getOffset(inst).copy(), IRTools.IC(fieldRef.getId()));
                                replaceInstructionWithBarrier(inst, rb);
                                inline(rb, ir, true);
                            }
                        }
                    }
                }
                break;
            case PUTSTATIC_opcode:
                {
                    if (NEEDS_OBJECT_PUTSTATIC_BARRIER) {
                        LocationOperand loc = PutStatic.getLocation(inst);
                        FieldReference field = loc.getFieldRef();
                        if (!field.getFieldContentsType().isPrimitiveType()) {
                            RVMMethod target = Entrypoints.objectStaticWriteBarrierMethod;
                            Instruction wb = Call.create3(CALL, null, IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), PutStatic.getValue(inst).copy(), PutStatic.getOffset(inst).copy(), IRTools.IC(field.getId()));
                            replaceInstructionWithBarrier(inst, wb);
                            if (ir.options.H2L_INLINE_WRITE_BARRIER) {
                                inline(wb, ir, true);
                            }
                        }
                    }
                }
                break;
            case GETSTATIC_opcode:
                {
                    if (NEEDS_OBJECT_GETSTATIC_BARRIER) {
                        LocationOperand loc = GetStatic.getLocation(inst);
                        FieldReference field = loc.getFieldRef();
                        if (!field.getFieldContentsType().isPrimitiveType()) {
                            RVMMethod target = Entrypoints.objectStaticReadBarrierMethod;
                            Instruction rb = Call.create2(CALL, GetStatic.getClearResult(inst), IRTools.AC(target.getOffset()), MethodOperand.STATIC(target), GetStatic.getOffset(inst).copy(), IRTools.IC(field.getId()));
                            replaceInstructionWithBarrier(inst, rb);
                            inline(rb, ir, true);
                        }
                    }
                }
                break;
            default:
                break;
        }
    }
    // If we actually inlined anything, clean up the mess
    if (didSomething) {
        if (branchOpts == null) {
            branchOpts = new BranchOptimizations(-1, true, true);
        }
        branchOpts.perform(ir, true);
        if (_os == null) {
            _os = new Simple(1, false, false, false, false);
        }
        _os.perform(ir);
    }
    // signal that we do not intend to use the gc in other phases anymore.
    ir.getGc().close();
}

Example 17 with IntConstantOperand

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

the class GenerateMagic method mapToMetadata.

private static LocationOperand mapToMetadata(Operand metadata) {
    if (metadata instanceof IntConstantOperand) {
        int index = ((IntConstantOperand) metadata).value;
        if (index == 0)
            return null;
        MemberReference mr = MemberReference.getMemberRef(index);
        return new LocationOperand(mr.asFieldReference());
    }
    return null;
}

Example 18 with IntConstantOperand

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

the class ComplexLIR2MIRExpansion method long_ifcmp_imm.

private static Instruction long_ifcmp_imm(Instruction s, IR ir) {
    Instruction nextInstr = s.nextInstructionInCodeOrder();
    ConditionOperand cond = IfCmp.getCond(s);
    Register xh = ((RegisterOperand) IfCmp.getVal1(s)).getRegister();
    Register xl = ir.regpool.getSecondReg(xh);
    LongConstantOperand rhs = (LongConstantOperand) IfCmp.getVal2(s);
    int low = rhs.lower32();
    int high = rhs.upper32();
    IntConstantOperand yh = IC(high);
    IntConstantOperand yl = IC(low);
    if (cond.isEQUAL() || cond.isNOT_EQUAL()) {
        // tricky... ((xh^yh)|(xl^yl) == 0) <==> (lhll == rhrl)!!
        Register th = ir.regpool.getInteger();
        Register tl = ir.regpool.getInteger();
        if (high == 0) {
            if (low == 0) {
                // 0,0
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
            } else if (low == -1) {
                // 0,-1
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(tl, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
                s.insertBefore(MIR_UnaryAcc.create(IA32_NOT, new RegisterOperand(tl, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(tl, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
            } else {
                // 0,*
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(tl, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_XOR, new RegisterOperand(tl, TypeReference.Int), yl));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(tl, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
            }
        } else if (high == -1) {
            if (low == 0) {
                // -1,0
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
                s.insertBefore(MIR_UnaryAcc.create(IA32_NOT, new RegisterOperand(th, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
            } else if (low == -1) {
                // -1,-1
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
                s.insertBefore(MIR_UnaryAcc.create(IA32_NOT, new RegisterOperand(th, TypeReference.Int)));
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(tl, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
                s.insertBefore(MIR_UnaryAcc.create(IA32_NOT, new RegisterOperand(tl, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(tl, TypeReference.Int)));
            } else {
                // -1,*
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
                s.insertBefore(MIR_UnaryAcc.create(IA32_NOT, new RegisterOperand(th, TypeReference.Int)));
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(tl, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_XOR, new RegisterOperand(tl, TypeReference.Int), yl));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(tl, TypeReference.Int)));
            }
        } else {
            if (low == 0) {
                // *,0
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_XOR, new RegisterOperand(th, TypeReference.Int), yh));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
            } else if (low == -1) {
                // *,-1
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_XOR, new RegisterOperand(th, TypeReference.Int), yh));
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(tl, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
                s.insertBefore(MIR_UnaryAcc.create(IA32_NOT, new RegisterOperand(tl, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(tl, TypeReference.Int)));
            } else {
                // neither high nor low is special
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(xh, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_XOR, new RegisterOperand(th, TypeReference.Int), yh));
                s.insertBefore(MIR_Move.create(IA32_MOV, new RegisterOperand(tl, TypeReference.Int), new RegisterOperand(xl, TypeReference.Int)));
                s.insertBefore(MIR_BinaryAcc.create(IA32_XOR, new RegisterOperand(tl, TypeReference.Int), yl));
                s.insertBefore(MIR_BinaryAcc.create(IA32_OR, new RegisterOperand(th, TypeReference.Int), new RegisterOperand(tl, TypeReference.Int)));
            }
        }
        MIR_CondBranch.mutate(s, IA32_JCC, new IA32ConditionOperand(cond), IfCmp.getTarget(s), IfCmp.getBranchProfile(s));
        return nextInstr;
    } else {
        // pick up a few special cases where the sign of xh is sufficient
        if (rhs.value == 0L) {
            if (cond.isLESS()) {
                // xh < 0 implies true
                s.insertBefore(MIR_Compare.create(IA32_CMP, new RegisterOperand(xh, TypeReference.Int), IC(0)));
                MIR_CondBranch.mutate(s, IA32_JCC, IA32ConditionOperand.LT(), IfCmp.getTarget(s), IfCmp.getBranchProfile(s));
                return nextInstr;
            } else if (cond.isGREATER_EQUAL()) {
                s.insertBefore(MIR_Compare.create(IA32_CMP, new RegisterOperand(xh, TypeReference.Int), IC(0)));
                MIR_CondBranch.mutate(s, IA32_JCC, IA32ConditionOperand.GE(), IfCmp.getTarget(s), IfCmp.getBranchProfile(s));
                return nextInstr;
            }
        } else if (rhs.value == -1L) {
            if (cond.isLESS_EQUAL()) {
                s.insertBefore(MIR_Compare.create(IA32_CMP, new RegisterOperand(xh, TypeReference.Int), IC(-1)));
                MIR_CondBranch.mutate(s, IA32_JCC, IA32ConditionOperand.LE(), IfCmp.getTarget(s), IfCmp.getBranchProfile(s));
                return nextInstr;
            } else if (cond.isGREATER()) {
                s.insertBefore(MIR_Compare.create(IA32_CMP, new RegisterOperand(xh, TypeReference.Int), IC(0)));
                MIR_CondBranch.mutate(s, IA32_JCC, IA32ConditionOperand.GE(), IfCmp.getTarget(s), IfCmp.getBranchProfile(s));
                return nextInstr;
            }
        }
        basic_long_ifcmp(s, ir, cond, xh, xl, yh, yl);
        return nextInstr;
    }
}

Example 19 with IntConstantOperand

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

the class ClassLoaderProxy method getIntFromConstantPool.

// --------------------------------------------------------------------------
// Constant pool access
// --------------------------------------------------------------------------
public static IntConstantOperand getIntFromConstantPool(RVMClass klass, int index) {
    Offset offset = klass.getLiteralOffset(index);
    int val = Statics.getSlotContentsAsInt(offset);
    return new IntConstantOperand(val);
}

Example 20 with IntConstantOperand

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

the class MinimalBURS method buildTree.

// //////////////////////////////
// Implementation
// //////////////////////////////
/**
 * Build a BURS Tree for each Instruction.
 * Complete BURS trees by adding leaf nodes as needed, and
 * creating tree edges by calling insertChild1() or insertChild2()
 * This step is also where we introduce intermediate tree nodes for
 * any LIR instruction that has > 2 "real" operands e.g., a CALL.
 *
 * @param s The instruction for which a tree must be built
 * @return the root of the newly constructed tree
 */
private AbstractBURS_TreeNode buildTree(Instruction s) {
    AbstractBURS_TreeNode root = AbstractBURS_TreeNode.create(new DepGraphNode(s));
    AbstractBURS_TreeNode cur = root;
    for (Enumeration<Operand> uses = s.getUses(); uses.hasMoreElements(); ) {
        Operand op = uses.nextElement();
        if (op == null)
            continue;
        // Set child = AbstractBURS_TreeNode for operand op
        AbstractBURS_TreeNode child;
        if (op instanceof RegisterOperand) {
            if (op.asRegister().getRegister().isValidation())
                continue;
            child = Register;
        } else if (op instanceof IntConstantOperand) {
            child = new BURS_IntConstantTreeNode(((IntConstantOperand) op).value);
        } else if (op instanceof LongConstantOperand) {
            child = LongConstant;
        } else if (op instanceof AddressConstantOperand) {
            child = AddressConstant;
        } else if (op instanceof BranchOperand && s.isCall()) {
            child = BranchTarget;
        } else if (op instanceof InlinedOsrTypeInfoOperand && s.isYieldPoint()) {
            child = NullTreeNode;
        } else {
            continue;
        }
        // Attach child as child of cur_parent in correct position
        if (cur.child1 == null) {
            cur.child1 = child;
        } else if (cur.child2 == null) {
            cur.child2 = child;
        } else {
            // Create auxiliary node so as to represent
            // a instruction with arity > 2 in a binary tree.
            AbstractBURS_TreeNode child1 = cur.child2;
            AbstractBURS_TreeNode aux = AbstractBURS_TreeNode.create(OTHER_OPERAND_opcode);
            cur.child2 = aux;
            cur = aux;
            cur.child1 = child1;
            cur.child2 = child;
        }
    }
    // patch for calls & return
    switch(s.getOpcode()) {
        case CALL_opcode:
        case SYSCALL_opcode:
        case YIELDPOINT_OSR_opcode:
            if (cur.child2 == null) {
                cur.child2 = NullTreeNode;
            }
        // fall through
        case RETURN_opcode:
            if (cur.child1 == null) {
                cur.child1 = NullTreeNode;
            }
    }
    return root;
}