Examples with Value jdk.vm.ci.meta.Value used on opensource projects

Example 96 with Value

use of jdk.vm.ci.meta.Value in project graal by oracle.

the class MoveResolver method safeToProcessMove.

/**
 * Checks if the {@linkplain Interval#location() location} of {@code to} is not blocked or is
 * only blocked by {@code from}.
 */
private boolean safeToProcessMove(Interval from, Interval to) {
    Value fromReg = from != null ? from.location() : null;
    Value location = to.location();
    if (mightBeBlocked(location)) {
        if ((valueBlocked(location) > 1 || (valueBlocked(location) == 1 && !isMoveToSelf(fromReg, location)))) {
            return false;
        }
    }
    return true;
}

Example 97 with Value

use of jdk.vm.ci.meta.Value in project graal by oracle.

the class RegisterVerifier method processOperations.

void processOperations(AbstractBlockBase<?> block, final Interval[] inputState) {
    ArrayList<LIRInstruction> ops = allocator.getLIR().getLIRforBlock(block);
    DebugContext debug = allocator.getDebug();
    InstructionValueConsumer useConsumer = new InstructionValueConsumer() {

        @Override
        public void visitValue(LIRInstruction op, Value operand, OperandMode mode, EnumSet<OperandFlag> flags) {
            // we skip spill moves inserted by the spill position optimization
            if (LinearScan.isVariableOrRegister(operand) && allocator.isProcessed(operand) && op.id() != LinearScan.DOMINATOR_SPILL_MOVE_ID) {
                Interval interval = intervalAt(operand);
                if (op.id() != -1) {
                    interval = interval.getSplitChildAtOpId(op.id(), mode, allocator);
                }
                assert checkState(block, op, inputState, interval.operand, interval.location(), interval.splitParent());
            }
        }
    };
    InstructionValueConsumer defConsumer = (op, operand, mode, flags) -> {
        if (LinearScan.isVariableOrRegister(operand) && allocator.isProcessed(operand)) {
            Interval interval = intervalAt(operand);
            if (op.id() != -1) {
                interval = interval.getSplitChildAtOpId(op.id(), mode, allocator);
            }
            statePut(debug, inputState, interval.location(), interval.splitParent());
        }
    };
    // visit all instructions of the block
    for (int i = 0; i < ops.size(); i++) {
        final LIRInstruction op = ops.get(i);
        if (debug.isLogEnabled()) {
            debug.log("%s", op.toStringWithIdPrefix());
        }
        // check if input operands are correct
        op.visitEachInput(useConsumer);
        // invalidate all caller save registers at calls
        if (op.destroysCallerSavedRegisters()) {
            for (Register r : allocator.getRegisterAllocationConfig().getRegisterConfig().getCallerSaveRegisters()) {
                statePut(debug, inputState, r.asValue(), null);
            }
        }
        op.visitEachAlive(useConsumer);
        // set temp operands (some operations use temp operands also as output operands, so
        // can't set them null)
        op.visitEachTemp(defConsumer);
        // set output operands
        op.visitEachOutput(defConsumer);
    }
}

Example 98 with Value

use of jdk.vm.ci.meta.Value in project graal by oracle.

the class TraceGlobalMoveResolutionPhase method resolveEdge.

private static void resolveEdge(LIR lir, GlobalLivenessInfo livenessInfo, TraceGlobalMoveResolver moveResolver, AbstractBlockBase<?> fromBlock, AbstractBlockBase<?> toBlock) {
    assert verifyEdge(fromBlock, toBlock);
    if (SSAUtil.isMerge(toBlock)) {
        // PHI
        JumpOp blockEnd = SSAUtil.phiOut(lir, fromBlock);
        LabelOp label = SSAUtil.phiIn(lir, toBlock);
        for (int i = 0; i < label.getPhiSize(); i++) {
            Value in = label.getIncomingValue(i);
            Value out = blockEnd.getOutgoingValue(i);
            addMapping(moveResolver, out, in);
        }
    }
    // GLI
    Value[] locFrom = livenessInfo.getOutLocation(fromBlock);
    Value[] locTo = livenessInfo.getInLocation(toBlock);
    if (locFrom == locTo) {
        // a strategy might reuse the locations array if locations are the same
        return;
    }
    assert locFrom.length == locTo.length;
    for (int i = 0; i < locFrom.length; i++) {
        addMapping(moveResolver, locFrom[i], locTo[i]);
    }
}

Example 99 with Value

use of jdk.vm.ci.meta.Value in project graal by oracle.

the class TraceGlobalMoveResolver method breakCycle.

@SuppressWarnings("try")
private void breakCycle(int spillCandidate) {
    // (e.g. r1 . r2, r2 . r1), so one interval must be spilled to memory
    assert spillCandidate != -1 : "no interval in register for spilling found";
    // create a new spill interval and assign a stack slot to it
    Value from = mappingFrom.get(spillCandidate);
    try (Indent indent = debug.logAndIndent("BreakCycle: %s", from)) {
        AllocatableValue spillSlot = null;
        if (TraceRegisterAllocationPhase.Options.TraceRAreuseStackSlotsForMoveResolutionCycleBreaking.getValue(options) && !isStackSlotValue(from)) {
            // don't use the stack slot if from is already the stack slot
            Value fromStack = mappingFromStack.get(spillCandidate);
            if (fromStack != null) {
                spillSlot = (AllocatableValue) fromStack;
                cycleBreakingSlotsReused.increment(debug);
                debug.log("reuse slot for spilling: %s", spillSlot);
            }
        }
        if (spillSlot == null) {
            spillSlot = frameMapBuilder.allocateSpillSlot(from.getValueKind());
            cycleBreakingSlotsAllocated.increment(debug);
            debug.log("created new slot for spilling: %s", spillSlot);
            // insert a move from register to stack and update the mapping
            LIRInstruction move = insertMove(from, spillSlot);
            move.setComment(res, "TraceGlobalMoveResolver: breakCycle");
        }
        block(spillSlot);
        mappingFrom.set(spillCandidate, spillSlot);
        unblock(from);
    }
}

Example 100 with Value

use of jdk.vm.ci.meta.Value in project graal by oracle.

the class SPARCMove method const2stack.

public static void const2stack(CompilationResultBuilder crb, SPARCMacroAssembler masm, Value result, Register constantTableBase, SPARCDelayedControlTransfer delaySlotLir, JavaConstant constant) {
    if (constant.isDefaultForKind() || constant.isNull()) {
        SPARCAddress resultAddress = (SPARCAddress) crb.asAddress(result);
        emitStore(g0.asValue(LIRKind.combine(result)), resultAddress, result.getPlatformKind(), delaySlotLir, null, crb, masm);
    } else {
        try (ScratchRegister sc = masm.getScratchRegister()) {
            Value scratchRegisterValue = sc.getRegister().asValue(LIRKind.combine(result));
            const2reg(crb, masm, scratchRegisterValue, constantTableBase, constant, SPARCDelayedControlTransfer.DUMMY);
            SPARCAddress resultAddress = (SPARCAddress) crb.asAddress(result);
            emitStore(scratchRegisterValue, resultAddress, result.getPlatformKind(), delaySlotLir, null, crb, masm);
        }
    }
}