/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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public class Main {
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public static void main(String[] args) {
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System.loadLibrary(args[0]);
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while (runTests(true));
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runTests(false);
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}
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public static boolean runTests(boolean warmup) {
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if (warmup) {
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return isInInterpreter("runTests");
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}
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// Several local variables which live across calls below,
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// thus they are likely to be saved in callee save registers.
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int i = $noinline$magicValue();
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long l = $noinline$magicValue();
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float f = $noinline$magicValue();
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double d = $noinline$magicValue();
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// The calls below will OSR. We pass the expected value in
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// argument, which should be saved in callee save register.
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if ($noinline$returnInt(53) != 53) {
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throw new Error("Unexpected return value");
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}
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if ($noinline$returnFloat(42.2f) != 42.2f) {
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throw new Error("Unexpected return value");
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}
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if ($noinline$returnDouble(Double.longBitsToDouble(0xF000000000001111L)) !=
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Double.longBitsToDouble(0xF000000000001111L)) {
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throw new Error("Unexpected return value ");
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}
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if ($noinline$returnLong(0xFFFF000000001111L) != 0xFFFF000000001111L) {
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throw new Error("Unexpected return value");
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}
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// Check that the register used in callee did not clober our value.
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if (i != $noinline$magicValue()) {
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throw new Error("Corrupted int local variable in caller");
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}
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if (l != $noinline$magicValue()) {
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throw new Error("Corrupted long local variable in caller");
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}
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if (f != $noinline$magicValue()) {
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throw new Error("Corrupted float local variable in caller");
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}
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if (d != $noinline$magicValue()) {
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throw new Error("Corrupted double local variable in caller");
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}
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return true;
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}
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public static int $noinline$magicValue() {
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return 42;
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}
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public static int $noinline$returnInt(int result) {
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// If we are running in non-JIT mode, or were unlucky enough to get this method
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// already JITted, skip the wait for OSR code.
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if (isInInterpreter("$noinline$returnInt")) {
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while (!isInOsrCode("$noinline$returnInt")) {}
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}
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return result;
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}
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public static float $noinline$returnFloat(float result) {
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// If we are running in non-JIT mode, or were unlucky enough to get this method
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// already JITted, skip the wait for OSR code.
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if (isInInterpreter("$noinline$returnFloat")) {
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while (!isInOsrCode("$noinline$returnFloat")) {}
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}
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return result;
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}
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public static double $noinline$returnDouble(double result) {
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// If we are running in non-JIT mode, or were unlucky enough to get this method
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// already JITted, skip the wait for OSR code.
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if (isInInterpreter("$noinline$returnDouble")) {
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while (!isInOsrCode("$noinline$returnDouble")) {}
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}
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return result;
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}
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public static long $noinline$returnLong(long result) {
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// If we are running in non-JIT mode, or were unlucky enough to get this method
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// already JITted, skip the wait for OSR code.
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if (isInInterpreter("$noinline$returnLong")) {
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while (!isInOsrCode("$noinline$returnLong")) {}
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}
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return result;
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}
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public static native boolean isInOsrCode(String methodName);
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public static native boolean isInInterpreter(String methodName);
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}
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