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src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.test/src/org/graalvm/compiler/hotspot/test/GraalOSRTest.java

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  36 
  37     @Test
  38     public void testOSR01() {
  39         try {
  40             testOSR(getInitialOptions(), "testReduceLoop");
  41         } catch (Throwable t) {
  42             Assert.assertEquals("OSR compilation without OSR entry loop.", t.getMessage());
  43         }
  44     }
  45 
  46     @Test
  47     public void testOSR02() {
  48         testOSR(getInitialOptions(), "testSequentialLoop");
  49     }
  50 
  51     @Test
  52     public void testOSR03() {
  53         testOSR(getInitialOptions(), "testNonReduceLoop");
  54     }
  55 





  56     static int limit = 10000;
  57 
  58     public static int sideEffect;
  59 
  60     public static ReturnValue testReduceLoop() {
  61         for (int i = 0; i < limit * limit; i++) {
  62             GraalDirectives.blackhole(i);
  63             if (GraalDirectives.inCompiledCode()) {
  64                 return ReturnValue.SUCCESS;
  65             }
  66         }
  67         return ReturnValue.FAILURE;
  68     }
  69 
  70     public static ReturnValue testSequentialLoop() {
  71         ReturnValue ret = ReturnValue.FAILURE;
  72         for (int i = 1; i < limit * limit; i++) {
  73             GraalDirectives.blackhole(i);
  74             if (i % 7 == 0) {
  75                 ret = ReturnValue.SUCCESS;


  82         for (int i = 1; i < limit * limit; i++) {
  83             GraalDirectives.blackhole(i);
  84             if (i % 33 == 0) {
  85                 ret = ReturnValue.SUCCESS;
  86             }
  87         }
  88         GraalDirectives.controlFlowAnchor();
  89         return ret;
  90     }
  91 
  92     public static ReturnValue testNonReduceLoop() {
  93         ReturnValue ret = ReturnValue.FAILURE;
  94         for (int i = 0; i < limit * limit; i++) {
  95             GraalDirectives.blackhole(i);
  96             if (i % 33 == 0) {
  97                 ret = ReturnValue.SUCCESS;
  98             }
  99         }
 100         GraalDirectives.controlFlowAnchor();
 101         return ret;










 102     }
 103 }


  36 
  37     @Test
  38     public void testOSR01() {
  39         try {
  40             testOSR(getInitialOptions(), "testReduceLoop");
  41         } catch (Throwable t) {
  42             Assert.assertEquals("OSR compilation without OSR entry loop.", t.getMessage());
  43         }
  44     }
  45 
  46     @Test
  47     public void testOSR02() {
  48         testOSR(getInitialOptions(), "testSequentialLoop");
  49     }
  50 
  51     @Test
  52     public void testOSR03() {
  53         testOSR(getInitialOptions(), "testNonReduceLoop");
  54     }
  55 
  56     @Test
  57     public void testOSR04() {
  58         testOSR(getInitialOptions(), "testDeoptAfterCountedLoop");
  59     }
  60 
  61     static int limit = 10000;
  62 
  63     public static int sideEffect;
  64 
  65     public static ReturnValue testReduceLoop() {
  66         for (int i = 0; i < limit * limit; i++) {
  67             GraalDirectives.blackhole(i);
  68             if (GraalDirectives.inCompiledCode()) {
  69                 return ReturnValue.SUCCESS;
  70             }
  71         }
  72         return ReturnValue.FAILURE;
  73     }
  74 
  75     public static ReturnValue testSequentialLoop() {
  76         ReturnValue ret = ReturnValue.FAILURE;
  77         for (int i = 1; i < limit * limit; i++) {
  78             GraalDirectives.blackhole(i);
  79             if (i % 7 == 0) {
  80                 ret = ReturnValue.SUCCESS;


  87         for (int i = 1; i < limit * limit; i++) {
  88             GraalDirectives.blackhole(i);
  89             if (i % 33 == 0) {
  90                 ret = ReturnValue.SUCCESS;
  91             }
  92         }
  93         GraalDirectives.controlFlowAnchor();
  94         return ret;
  95     }
  96 
  97     public static ReturnValue testNonReduceLoop() {
  98         ReturnValue ret = ReturnValue.FAILURE;
  99         for (int i = 0; i < limit * limit; i++) {
 100             GraalDirectives.blackhole(i);
 101             if (i % 33 == 0) {
 102                 ret = ReturnValue.SUCCESS;
 103             }
 104         }
 105         GraalDirectives.controlFlowAnchor();
 106         return ret;
 107     }
 108 
 109     public static ReturnValue testDeoptAfterCountedLoop() {
 110         long ret = 0;
 111         for (int i = 0; GraalDirectives.injectBranchProbability(1, i < limit * limit); i++) {
 112             GraalDirectives.blackhole(i);
 113             ret = GraalDirectives.opaque(i);
 114         }
 115         GraalDirectives.controlFlowAnchor();
 116         return ret + 1 == limit * limit ? ReturnValue.SUCCESS : ReturnValue.FAILURE;
 117     }
 118 }
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