Examples with ControlTransferOp org.graalvm.compiler.asm.sparc.SPARCAssembler.ControlTransferOp used on opensource projects

Example 1 with ControlTransferOp

use of org.graalvm.compiler.asm.sparc.SPARCAssembler.ControlTransferOp in project graal by oracle.

the class SPARCAssemblerTest method doTestControlTransferOp.

/**
 * Assembles the control transfer op and then verifies the expected disp value against the disp
 * field provided by the disassembler.
 */
public void doTestControlTransferOp(Consumer<Label> opCreator, int minDisp, int maxDisp) {
    Label lBack = new Label();
    Label lForward = new Label();
    masm.bind(lBack);
    for (int i = 0; i < -minDisp; i++) {
        masm.nop();
    }
    int backPos = masm.position();
    opCreator.accept(lBack);
    // Nop required to separate the two control transfer instructions
    masm.nop();
    int forwardPos = masm.position();
    opCreator.accept(lForward);
    for (int i = 0; i < maxDisp - 1; i++) {
        masm.nop();
    }
    masm.bind(lForward);
    int condBack = masm.getInt(backPos);
    SPARCOp backOp = SPARCAssembler.getSPARCOp(condBack);
    int dispBack = ((ControlTransferOp) backOp).getDisp(condBack);
    Assert.assertEquals(minDisp, dispBack);
    int condFwd = masm.getInt(forwardPos);
    SPARCOp fwdOp = SPARCAssembler.getSPARCOp(condFwd);
    int dispFwd = ((ControlTransferOp) fwdOp).getDisp(condFwd);
    Assert.assertEquals(maxDisp, dispFwd);
}