Add tests for JIT arraytranslate

test/functional/JIT_Test/playlist.xml

@@ -578,6 +578,30 @@ SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-ex
 			<impl>ibm</impl>
 		</impls>
 	</test>
+	<test>
+		<testCaseName>ArrayTranslateTest</testCaseName>
+		<variations>
+			<variation>-Xjit:count=1,limit={*arrayTranslate*},optLevel=scorching,disableAsyncCompilation</variation>
+		</variations>
+		<command>$(JAVA_COMMAND) $(JVM_OPTIONS) \
+	-cp $(Q)$(RESOURCES_DIR)$(P)$(TESTNG)$(P)$(TEST_RESROOT)$(D)jitt.jar$(Q) \
+	org.testng.TestNG -d $(REPORTDIR) $(Q)$(TEST_RESROOT)$(D)testng.xml$(Q) \
+	-testnames \
+	ArrayTranslateTest \
+	-groups $(TEST_GROUP) \
+	-excludegroups $(DEFAULT_EXCLUDE); \
+	$(TEST_STATUS)</command>
+		<levels>
+			<level>sanity</level>
+		</levels>
+		<groups>
+			<group>functional</group>
+		</groups>
+		<impls>
+			<impl>openj9</impl>
+			<impl>ibm</impl>
+		</impls>
+	</test>
 	<!-- jit.test.hw tests start here -->
 	<test>
 		<testCaseName>jit_hw</testCaseName>

test/functional/JIT_Test/src/jit/test/tr/arrayTranslate/ArrayTranslateTest.java

@@ -0,0 +1,125 @@
+/*
+ * Copyright IBM Corp. and others 2024
+ *
+ * This program and the accompanying materials are made available under
+ * the terms of the Eclipse Public License 2.0 which accompanies this
+ * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
+ * or the Apache License, Version 2.0 which accompanies this distribution and
+ * is available at https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * This Source Code may also be made available under the following
+ * Secondary Licenses when the conditions for such availability set
+ * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
+ * General Public License, version 2 with the GNU Classpath
+ * Exception [1] and GNU General Public License, version 2 with the
+ * OpenJDK Assembly Exception [2].
+ *
+ * [1] https://www.gnu.org/software/classpath/license.html
+ * [2] https://openjdk.org/legal/assembly-exception.html
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
+ */
+package jit.test.tr.arrayTranslate;
+
+import org.testng.annotations.Test;
+import org.testng.AssertJUnit;
+
+@Test(groups = { "level.sanity","component.jit" })
+public class ArrayTranslateTest {
+
+	private static final int arrSize = 128;
+	private char[] chars;
+	private byte[] bytes;
+
+	private static final char maxValueTRTO = 127;
+	private static final char maxValueTRTO255 = 255;
+
+	/* JIT-compile this method */
+	private int arrayTranslateTRTO(char[] sa, int sp, byte[] da, int dp, int len)
+	{
+		int i = 0;
+		for (; i < len; i++) {
+			char c = sa[sp++];
+			if (c > maxValueTRTO) break;
+			da[dp++] = (byte)c;
+		}
+		return i;
+	}
+
+	@Test
+	public void testArrayTranslateTRTO()
+	{
+		chars = new char[arrSize];
+		bytes = new byte[arrSize];
+
+		// Fill chars[] with safe characters
+		for (int i = 0; i < arrSize; i++) {
+			chars[i] = (char)('0' + (i >> 1));
+		}
+
+		for (int offset = 0; offset <= 16; offset++) {
+			for (int len = 0; len < arrSize-offset; len++) {
+				int n = arrayTranslateTRTO(chars, offset, bytes, 0, len);
+				AssertJUnit.assertEquals("TRTO: Wrong result: length=" + len, len, n);
+				for (int i = 0; i < len; i++) {
+					AssertJUnit.assertEquals("TRTO: Wrong value at bytes[" + i + "]", chars[offset+i], (char)bytes[i]);
+				}
+			}
+		}
+
+		for (int len = 1; len <= 64; len++) {
+			for (int i = 0; i < len; i++) {
+				char c = chars[i];
+				chars[i] = maxValueTRTO + 1;
+				int n = arrayTranslateTRTO(chars, 0, bytes, 0, len);
+				AssertJUnit.assertEquals("TRTO: Wrong result for failure case: length=" + len, i, n);
+				chars[i] = c;
+			}
+		}
+	}
+
+	/* JIT-compile this method */
+	private int arrayTranslateTRTO255(char[] sa, int sp, byte[] da, int dp, int len)
+	{
+		int i = 0;
+		for (; i < len; i++) {
+			char c = sa[sp++];
+			if (c > maxValueTRTO255) break;
+			da[dp++] = (byte)c;
+		}
+		return i;
+	}
+
+	@Test
+	public void testArrayTranslateTRTO255()
+	{
+		chars = new char[arrSize];
+		bytes = new byte[arrSize];
+
+		// Fill chars[] with safe characters
+		for (int i = 0; i < arrSize; i++) {
+			chars[i] = (char)('0' + (i >> 1));
+		}
+
+		for (int offset = 0; offset <= 16; offset++) {
+			for (int len = 0; len < arrSize-offset; len++) {
+				int n = arrayTranslateTRTO255(chars, offset, bytes, 0, len);
+				AssertJUnit.assertEquals("TRTO255: Wrong result: length=" + len, len, n);
+				for (int i = 0; i < len; i++) {
+					AssertJUnit.assertEquals("TRTO255: Wrong value at bytes[" + i + "]", chars[offset+i], (char)bytes[i]);
+				}
+			}
+		}
+
+		for (int len = 1; len <= 64; len++) {
+			for (int i = 0; i < len; i++) {
+				char c = chars[i];
+				chars[i] = maxValueTRTO255 + 1;
+				int n = arrayTranslateTRTO255(chars, 0, bytes, 0, len);
+				AssertJUnit.assertEquals("TRTO255: Wrong result for failure case: length=" + len, i, n);
+				chars[i] = c;
+			}
+		}
+	}
+
+}

test/functional/JIT_Test/testng.xml

@@ -460,7 +460,12 @@
 	   <class name="jit.test.tr.BNDCHKSimplify.BNDCHKSimplifyTest" />
 	 </classes>
   </test>
-	<test name="StringPeepholeTest">
+  <test name="ArrayTranslateTest">
+    <classes>
+      <class name="jit.test.tr.arrayTranslate.ArrayTranslateTest" />
+    </classes>
+  </test>
+  <test name="StringPeepholeTest">
     <classes>
       <class name="jit.test.tr.stringPeephole.BigDecimalToStringTest" />
     </classes>