test/570-checker-osr/src/Main.java - platform/art - Git at Google

 /*
  * Copyright (C) 2016 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 public class Main {
   public static void main(String[] args) {
     System.loadLibrary(args[0]);
     Thread testThread = new Thread() {
       public void run() {
         performTest();
       }
     };
     testThread.start();
     try {
       testThread.join(20 * 1000);  // 20s timeout.
     } catch (InterruptedException ie) {
       System.out.println("Interrupted.");
       System.exit(1);
     }
     Thread.State state = testThread.getState();
     if (state != Thread.State.TERMINATED) {
       System.out.println("Test timed out, current state: " + state);
       System.exit(1);
     }
   }

   public static void performTest() {
     new SubMain();
     if ($noinline$returnInt() != 53) {
       throw new Error("Unexpected return value");
     }
     if ($noinline$returnFloat() != 42.2f) {
       throw new Error("Unexpected return value");
     }
     if ($noinline$returnDouble() != Double.longBitsToDouble(0xF000000000001111L)) {
       throw new Error("Unexpected return value ");
     }
     if ($noinline$returnLong() != 0xFFFF000000001111L) {
       throw new Error("Unexpected return value");
     }

     try {
       $noinline$deopt();
     } catch (Exception e) {}
     DeoptimizationController.stopDeoptimization();

     $noinline$inlineCache(new Main(), /* isSecondInvocation */ false);
     if ($noinline$inlineCache(new SubMain(), /* isSecondInvocation */ true) != SubMain.class) {
       throw new Error("Unexpected return value");
     }

     $noinline$inlineCache2(new Main(), /* isSecondInvocation */ false);
     if ($noinline$inlineCache2(new SubMain(), /* isSecondInvocation */ true) != SubMain.class) {
       throw new Error("Unexpected return value");
     }

     // Test polymorphic inline cache to the same target (inlineCache3).
     $noinline$inlineCache3(new Main(), /* isSecondInvocation */ false);
     $noinline$inlineCache3(new SubMain(), /* isSecondInvocation */ false);
     if ($noinline$inlineCache3(new SubMain(), /* isSecondInvocation */ true) != null) {
       throw new Error("Unexpected return value");
     }

     $noinline$stackOverflow(new Main(), /* isSecondInvocation */ false);
     $noinline$stackOverflow(new SubMain(), /* isSecondInvocation */ true);

     $opt$noinline$testOsrInlineLoop(null);
     System.out.println("b28210356 passed.");
   }

   public static int $noinline$returnInt() {
     if (doThrow) throw new Error("");
     int i = 0;
     for (; i < 100000; ++i) {
     }
     while (!isInOsrCode("$noinline$returnInt")) {}
     System.out.println(i);
     return 53;
   }

   public static float $noinline$returnFloat() {
     if (doThrow) throw new Error("");
     int i = 0;
     for (; i < 200000; ++i) {
     }
     while (!isInOsrCode("$noinline$returnFloat")) {}
     System.out.println(i);
     return 42.2f;
   }

   public static double $noinline$returnDouble() {
     if (doThrow) throw new Error("");
     int i = 0;
     for (; i < 300000; ++i) {
     }
     while (!isInOsrCode("$noinline$returnDouble")) {}
     System.out.println(i);
     return Double.longBitsToDouble(0xF000000000001111L);
   }

   public static long $noinline$returnLong() {
     if (doThrow) throw new Error("");
     int i = 0;
     for (; i < 400000; ++i) {
     }
     while (!isInOsrCode("$noinline$returnLong")) {}
     System.out.println(i);
     return 0xFFFF000000001111L;
   }

   public static void $noinline$deopt() {
     if (doThrow) throw new Error("");
     int i = 0;
     for (; i < 100000; ++i) {
     }
     while (!isInOsrCode("$noinline$deopt")) {}
     DeoptimizationController.startDeoptimization();
   }

   public static Class $noinline$inlineCache(Main m, boolean isSecondInvocation) {
     // If we are running in non-JIT mode, or were unlucky enough to get this method
     // already JITted, just return the expected value.
     if (!isInInterpreter("$noinline$inlineCache")) {
       return SubMain.class;
     }

     ensureHasProfilingInfo("$noinline$inlineCache");

     // Ensure that we have OSR code to jump to.
     if (isSecondInvocation) {
       ensureHasOsrCode("$noinline$inlineCache");
     }

     // This call will be optimized in the OSR compiled code
     // to check and deoptimize if m is not of type 'Main'.
     Main other = m.inlineCache();

     // Jump to OSR compiled code. The second run
     // of this method will have 'm' as a SubMain, and the compiled
     // code we are jumping to will have wrongly optimize other as being a
     // 'Main'.
     if (isSecondInvocation) {
       while (!isInOsrCode("$noinline$inlineCache")) {}
     }

     // We used to wrongly optimize this call and assume 'other' was a 'Main'.
     return other.returnClass();
   }

   public static Class $noinline$inlineCache2(Main m, boolean isSecondInvocation) {
     // If we are running in non-JIT mode, or were unlucky enough to get this method
     // already JITted, just return the expected value.
     if (!isInInterpreter("$noinline$inlineCache2")) {
       return SubMain.class;
     }

     ensureHasProfilingInfo("$noinline$inlineCache2");

     // Ensure that we have OSR code to jump to.
     if (isSecondInvocation) {
       ensureHasOsrCode("$noinline$inlineCache2");
     }

     // This call will be optimized in the OSR compiled code
     // to check and deoptimize if m is not of type 'Main'.
     Main other = m.inlineCache2();

     // Jump to OSR compiled code. The second run
     // of this method will have 'm' as a SubMain, and the compiled
     // code we are jumping to will have wrongly optimize other as being null.
     if (isSecondInvocation) {
       while (!isInOsrCode("$noinline$inlineCache2")) {}
     }

     // We used to wrongly optimize this code and assume 'other' was always null.
     return (other == null) ? null : other.returnClass();
   }

   public static Class $noinline$inlineCache3(Main m, boolean isSecondInvocation) {
     // If we are running in non-JIT mode, or were unlucky enough to get this method
     // already JITted, just return the expected value.
     if (!isInInterpreter("$noinline$inlineCache3")) {
       return null;
     }

     ensureHasProfilingInfo("$noinline$inlineCache3");

     // Ensure that we have OSR code to jump to.
     if (isSecondInvocation) {
       ensureHasOsrCode("$noinline$inlineCache3");
     }

     // This call will be optimized in the OSR compiled code
     // to check and deoptimize if m is not of type 'Main'.
     Main other = m.inlineCache3();

     // Jump to OSR compiled code. The second run
     // of this method will have 'm' as a SubMain, and the compiled
     // code we are jumping to will have wrongly optimize other as being null.
     if (isSecondInvocation) {
       while (!isInOsrCode("$noinline$inlineCache3")) {}
     }

     // We used to wrongly optimize this code and assume 'other' was always null.
     return (other == null) ? null : other.returnClass();
   }

   public Main inlineCache() {
     return new Main();
   }

   public Main inlineCache2() {
     return null;
   }

   public Main inlineCache3() {
     return null;
   }

   public Class returnClass() {
     return Main.class;
   }

   public void otherInlineCache() {
     return;
   }

   public static void $noinline$stackOverflow(Main m, boolean isSecondInvocation) {
     // If we are running in non-JIT mode, or were unlucky enough to get this method
     // already JITted, just return the expected value.
     if (!isInInterpreter("$noinline$stackOverflow")) {
       return;
     }

     // We need a ProfilingInfo object to populate the 'otherInlineCache' call.
     ensureHasProfilingInfo("$noinline$stackOverflow");

     if (isSecondInvocation) {
       // Ensure we have an OSR code and we jump to it.
       while (!isInOsrCode("$noinline$stackOverflow")) {}
     }

     for (int i = 0; i < (isSecondInvocation ? 10000000 : 1); ++i) {
       // The first invocation of $noinline$stackOverflow will populate the inline
       // cache with Main. The second invocation of the method, will see a SubMain
       // and will therefore trigger deoptimization.
       m.otherInlineCache();
     }
   }

   public static void $opt$noinline$testOsrInlineLoop(String[] args) {
     // Regression test for inlining a method with a loop to a method without a loop in OSR mode.
     if (doThrow) throw new Error();
     assertIntEquals(12, $opt$inline$testRemoveSuspendCheck(12, 5));
     // Since we cannot have a loop directly in this method, we need to force the OSR
     // compilation from native code.
     ensureHasProfilingInfo("$opt$noinline$testOsrInlineLoop");
     ensureHasOsrCode("$opt$noinline$testOsrInlineLoop");
   }

   public static int $opt$inline$testRemoveSuspendCheck(int x, int y) {
     // For this test we need an inlined loop and have DCE re-run loop analysis
     // after inlining.
     while (y > 0) {
       while ($opt$inline$inlineFalse() || !$opt$inline$inlineTrue()) {
         x++;
       }
       y--;
     }
     return x;
   }

   public static boolean $opt$inline$inlineTrue() {
     return true;
   }

   public static boolean $opt$inline$inlineFalse() {
     return false;
   }

   public static void assertIntEquals(int expected, int result) {
     if (expected != result) {
       throw new Error("Expected: " + expected + ", found: " + result);
     }
   }

   public static native boolean isInOsrCode(String methodName);
   public static native boolean isInInterpreter(String methodName);
   public static native void ensureHasProfilingInfo(String methodName);
   public static native void ensureHasOsrCode(String methodName);

   public static boolean doThrow = false;
 }

 class SubMain extends Main {
   public Class returnClass() {
     return SubMain.class;
   }

   public Main inlineCache() {
     return new SubMain();
   }

   public Main inlineCache2() {
     return new SubMain();
   }

   public void otherInlineCache() {
     return;
   }
 }
	/*
	* Copyright (C) 2016 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	public class Main {
	public static void main(String[] args) {
	System.loadLibrary(args[0]);
	Thread testThread = new Thread() {
	public void run() {
	performTest();
	}
	};
	testThread.start();
	try {
	testThread.join(20 * 1000); // 20s timeout.
	} catch (InterruptedException ie) {
	System.out.println("Interrupted.");
	System.exit(1);
	}
	Thread.State state = testThread.getState();
	if (state != Thread.State.TERMINATED) {
	System.out.println("Test timed out, current state: " + state);
	System.exit(1);
	}
	}

	public static void performTest() {
	new SubMain();
	if ($noinline$returnInt() != 53) {
	throw new Error("Unexpected return value");
	}
	if ($noinline$returnFloat() != 42.2f) {
	throw new Error("Unexpected return value");
	}
	if ($noinline$returnDouble() != Double.longBitsToDouble(0xF000000000001111L)) {
	throw new Error("Unexpected return value ");
	}
	if ($noinline$returnLong() != 0xFFFF000000001111L) {
	throw new Error("Unexpected return value");
	}

	try {
	$noinline$deopt();
	} catch (Exception e) {}
	DeoptimizationController.stopDeoptimization();

	$noinline$inlineCache(new Main(), /* isSecondInvocation */ false);
	if ($noinline$inlineCache(new SubMain(), /* isSecondInvocation */ true) != SubMain.class) {
	throw new Error("Unexpected return value");
	}

	$noinline$inlineCache2(new Main(), /* isSecondInvocation */ false);
	if ($noinline$inlineCache2(new SubMain(), /* isSecondInvocation */ true) != SubMain.class) {
	throw new Error("Unexpected return value");
	}

	// Test polymorphic inline cache to the same target (inlineCache3).
	$noinline$inlineCache3(new Main(), /* isSecondInvocation */ false);
	$noinline$inlineCache3(new SubMain(), /* isSecondInvocation */ false);
	if ($noinline$inlineCache3(new SubMain(), /* isSecondInvocation */ true) != null) {
	throw new Error("Unexpected return value");
	}

	$noinline$stackOverflow(new Main(), /* isSecondInvocation */ false);
	$noinline$stackOverflow(new SubMain(), /* isSecondInvocation */ true);

	$opt$noinline$testOsrInlineLoop(null);
	System.out.println("b28210356 passed.");
	}

	public static int $noinline$returnInt() {
	if (doThrow) throw new Error("");
	int i = 0;
	for (; i < 100000; ++i) {
	}
	while (!isInOsrCode("$noinline$returnInt")) {}
	System.out.println(i);
	return 53;
	}

	public static float $noinline$returnFloat() {
	if (doThrow) throw new Error("");
	int i = 0;
	for (; i < 200000; ++i) {
	}
	while (!isInOsrCode("$noinline$returnFloat")) {}
	System.out.println(i);
	return 42.2f;
	}

	public static double $noinline$returnDouble() {
	if (doThrow) throw new Error("");
	int i = 0;
	for (; i < 300000; ++i) {
	}
	while (!isInOsrCode("$noinline$returnDouble")) {}
	System.out.println(i);
	return Double.longBitsToDouble(0xF000000000001111L);
	}

	public static long $noinline$returnLong() {
	if (doThrow) throw new Error("");
	int i = 0;
	for (; i < 400000; ++i) {
	}
	while (!isInOsrCode("$noinline$returnLong")) {}
	System.out.println(i);
	return 0xFFFF000000001111L;
	}

	public static void $noinline$deopt() {
	if (doThrow) throw new Error("");
	int i = 0;
	for (; i < 100000; ++i) {
	}
	while (!isInOsrCode("$noinline$deopt")) {}
	DeoptimizationController.startDeoptimization();
	}

	public static Class $noinline$inlineCache(Main m, boolean isSecondInvocation) {
	// If we are running in non-JIT mode, or were unlucky enough to get this method
	// already JITted, just return the expected value.
	if (!isInInterpreter("$noinline$inlineCache")) {
	return SubMain.class;
	}

	ensureHasProfilingInfo("$noinline$inlineCache");

	// Ensure that we have OSR code to jump to.
	if (isSecondInvocation) {
	ensureHasOsrCode("$noinline$inlineCache");
	}

	// This call will be optimized in the OSR compiled code
	// to check and deoptimize if m is not of type 'Main'.
	Main other = m.inlineCache();

	// Jump to OSR compiled code. The second run
	// of this method will have 'm' as a SubMain, and the compiled
	// code we are jumping to will have wrongly optimize other as being a
	// 'Main'.
	if (isSecondInvocation) {
	while (!isInOsrCode("$noinline$inlineCache")) {}
	}

	// We used to wrongly optimize this call and assume 'other' was a 'Main'.
	return other.returnClass();
	}

	public static Class $noinline$inlineCache2(Main m, boolean isSecondInvocation) {
	// If we are running in non-JIT mode, or were unlucky enough to get this method
	// already JITted, just return the expected value.
	if (!isInInterpreter("$noinline$inlineCache2")) {
	return SubMain.class;
	}

	ensureHasProfilingInfo("$noinline$inlineCache2");

	// Ensure that we have OSR code to jump to.
	if (isSecondInvocation) {
	ensureHasOsrCode("$noinline$inlineCache2");
	}

	// This call will be optimized in the OSR compiled code
	// to check and deoptimize if m is not of type 'Main'.
	Main other = m.inlineCache2();

	// Jump to OSR compiled code. The second run
	// of this method will have 'm' as a SubMain, and the compiled
	// code we are jumping to will have wrongly optimize other as being null.
	if (isSecondInvocation) {
	while (!isInOsrCode("$noinline$inlineCache2")) {}
	}

	// We used to wrongly optimize this code and assume 'other' was always null.
	return (other == null) ? null : other.returnClass();
	}

	public static Class $noinline$inlineCache3(Main m, boolean isSecondInvocation) {
	// If we are running in non-JIT mode, or were unlucky enough to get this method
	// already JITted, just return the expected value.
	if (!isInInterpreter("$noinline$inlineCache3")) {
	return null;
	}

	ensureHasProfilingInfo("$noinline$inlineCache3");

	// Ensure that we have OSR code to jump to.
	if (isSecondInvocation) {
	ensureHasOsrCode("$noinline$inlineCache3");
	}

	// This call will be optimized in the OSR compiled code
	// to check and deoptimize if m is not of type 'Main'.
	Main other = m.inlineCache3();

	// Jump to OSR compiled code. The second run
	// of this method will have 'm' as a SubMain, and the compiled
	// code we are jumping to will have wrongly optimize other as being null.
	if (isSecondInvocation) {
	while (!isInOsrCode("$noinline$inlineCache3")) {}
	}

	// We used to wrongly optimize this code and assume 'other' was always null.
	return (other == null) ? null : other.returnClass();
	}

	public Main inlineCache() {
	return new Main();
	}

	public Main inlineCache2() {
	return null;
	}

	public Main inlineCache3() {
	return null;
	}

	public Class returnClass() {
	return Main.class;
	}

	public void otherInlineCache() {
	return;
	}

	public static void $noinline$stackOverflow(Main m, boolean isSecondInvocation) {
	// If we are running in non-JIT mode, or were unlucky enough to get this method
	// already JITted, just return the expected value.
	if (!isInInterpreter("$noinline$stackOverflow")) {
	return;
	}

	// We need a ProfilingInfo object to populate the 'otherInlineCache' call.
	ensureHasProfilingInfo("$noinline$stackOverflow");

	if (isSecondInvocation) {
	// Ensure we have an OSR code and we jump to it.
	while (!isInOsrCode("$noinline$stackOverflow")) {}
	}

	for (int i = 0; i < (isSecondInvocation ? 10000000 : 1); ++i) {
	// The first invocation of $noinline$stackOverflow will populate the inline
	// cache with Main. The second invocation of the method, will see a SubMain
	// and will therefore trigger deoptimization.
	m.otherInlineCache();
	}
	}

	public static void $opt$noinline$testOsrInlineLoop(String[] args) {
	// Regression test for inlining a method with a loop to a method without a loop in OSR mode.
	if (doThrow) throw new Error();
	assertIntEquals(12, $opt$inline$testRemoveSuspendCheck(12, 5));
	// Since we cannot have a loop directly in this method, we need to force the OSR
	// compilation from native code.
	ensureHasProfilingInfo("$opt$noinline$testOsrInlineLoop");
	ensureHasOsrCode("$opt$noinline$testOsrInlineLoop");
	}

	public static int $opt$inline$testRemoveSuspendCheck(int x, int y) {
	// For this test we need an inlined loop and have DCE re-run loop analysis
	// after inlining.
	while (y > 0) {
	while ($opt$inline$inlineFalse() \|\| !$opt$inline$inlineTrue()) {
	x++;
	}
	y--;
	}
	return x;
	}

	public static boolean $opt$inline$inlineTrue() {
	return true;
	}

	public static boolean $opt$inline$inlineFalse() {
	return false;
	}

	public static void assertIntEquals(int expected, int result) {
	if (expected != result) {
	throw new Error("Expected: " + expected + ", found: " + result);
	}
	}

	public static native boolean isInOsrCode(String methodName);
	public static native boolean isInInterpreter(String methodName);
	public static native void ensureHasProfilingInfo(String methodName);
	public static native void ensureHasOsrCode(String methodName);

	public static boolean doThrow = false;
	}

	class SubMain extends Main {
	public Class returnClass() {
	return SubMain.class;
	}

	public Main inlineCache() {
	return new SubMain();
	}

	public Main inlineCache2() {
	return new SubMain();
	}

	public void otherInlineCache() {
	return;
	}
	}