Examples with LIRLowerableAccess org.graalvm.compiler.nodes.memory.LIRLowerableAccess used on opensource projects

Example 1 with LIRLowerableAccess

use of org.graalvm.compiler.nodes.memory.LIRLowerableAccess in project graal by oracle.

the class AMD64NodeMatchRules method emitIntegerTestBranchMemory.

private ComplexMatchResult emitIntegerTestBranchMemory(IfNode x, ValueNode value, LIRLowerableAccess access) {
    LabelRef trueLabel = getLIRBlock(x.trueSuccessor());
    LabelRef falseLabel = getLIRBlock(x.falseSuccessor());
    double trueLabelProbability = x.probability(x.trueSuccessor());
    AMD64Kind kind = getMemoryKind(access);
    OperandSize size = kind == AMD64Kind.QWORD ? QWORD : DWORD;
    if (value.isConstant()) {
        JavaConstant constant = value.asJavaConstant();
        if (constant != null && kind == AMD64Kind.QWORD && !NumUtil.isInt(constant.asLong())) {
            // Only imm32 as long
            return null;
        }
        return builder -> {
            AMD64AddressValue address = (AMD64AddressValue) operand(access.getAddress());
            gen.append(new AMD64BinaryConsumer.MemoryConstOp(AMD64MIOp.TEST, size, address, (int) constant.asLong(), getState(access)));
            gen.append(new BranchOp(Condition.EQ, trueLabel, falseLabel, trueLabelProbability));
            return null;
        };
    } else {
        return builder -> {
            AMD64AddressValue address = (AMD64AddressValue) operand(access.getAddress());
            gen.append(new AMD64BinaryConsumer.MemoryRMOp(AMD64RMOp.TEST, size, gen.asAllocatable(operand(value)), address, getState(access)));
            gen.append(new BranchOp(Condition.EQ, trueLabel, falseLabel, trueLabelProbability));
            return null;
        };
    }
}