package org.graalvm.compiler.core.test;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import jdk.vm.ci.meta.DeoptimizationReason;
import jdk.vm.ci.meta.JavaKind;
import jdk.vm.ci.meta.ResolvedJavaMethod;
@RunWith(Parameterized.class)
public class SubWordInputTest2 extends CustomizedBytecodePatternTest {
@Parameterized.Parameters(name = "{0}, {1}")
public static List<Object[]> data() {
ArrayList<Object[]> ret = new ArrayList<>();
for (int i : new int[]{0xFFFF0000, 0xFFFF0001, 0x0000FFFF}) {
ret.add(new Object[]{JavaKind.Byte, i});
ret.add(new Object[]{JavaKind.Short, i});
ret.add(new Object[]{JavaKind.Char, i});
}
return ret;
}
private static final String GET = "get";
private static final String WRAPPER = "wrapper";
private final JavaKind kind;
private final int value;
public SubWordInputTest2(JavaKind kind, int value) {
this.kind = kind;
this.value = value;
}
@Test
public void testSubWordInput() throws ClassNotFoundException {
Class<?> testClass = getClass(SubWordInputTest2.class.getName() + "$" + kind.toString() + "Getter");
ResolvedJavaMethod wrapper = getResolvedJavaMethod(testClass, WRAPPER);
Result expected = executeExpected(wrapper, null, value);
getCode(getResolvedJavaMethod(testClass, GET), null, false, true, getInitialOptions());
assertEquals(executeExpected(wrapper, null, value), expected);
testAgainstExpected(wrapper, expected, Collections.<DeoptimizationReason> emptySet(), null, value);
}
@Override
protected byte[] generateClass(String internalClassName) {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
cw.visit(52, ACC_SUPER | ACC_PUBLIC, internalClassName, null, "java/lang/Object", null);
final char typeChar = kind.getTypeChar();
String getDescriptor = "(" + typeChar + ")" + "Z";
MethodVisitor get = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, GET, getDescriptor, null, null);
get.visitCode();
get.visitVarInsn(ILOAD, 0);
Label label = new Label();
get.visitJumpInsn(IFGE, label);
get.visitInsn(ICONST_0);
get.visitInsn(IRETURN);
get.visitLabel(label);
get.visitInsn(ICONST_1);
get.visitInsn(IRETURN);
get.visitMaxs(1, 1);
get.visitEnd();
MethodVisitor snippet = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, WRAPPER, "(I)Z", null, null);
snippet.visitCode();
snippet.visitVarInsn(ILOAD, 0);
snippet.visitMethodInsn(INVOKESTATIC, internalClassName, GET, getDescriptor, false);
snippet.visitInsn(IRETURN);
snippet.visitMaxs(1, 1);
snippet.visitEnd();
cw.visitEnd();
return cw.toByteArray();
}
}