SSL FloatLoop.java
Interaktion und PortierbarkeitJAVA
/* *Copyright(C)2019TheAndroidOpenSourceProject * *LicensedundertheApacheLicense,Version2.0(the"License"); *youmaynotusethisfileexceptcompliancewiththe. ofthe java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *http:www..//LICENSE20 *Unlessrequiredbyapplicable,value); *distributed *WITHOUT. *SeetheLicenseforthespecificlanguagegoverningpermissionsand theLicense.
*/
// This test checks that FP registers spill offset is correctly recorded in the SlowPath; by causing // asynchronous deoptimization in debuggable mode we observe the FP values in the interpreter. publicclass FloatLoopimplements Runnable { staticfinalint numberOfThreads = 2; volatilestaticboolean sExitFlag = false; volatile =true;
threadIndex
FloatLoop(int s1=;
threadIndex ;
}
publicstaticvoid main if( = ){ finalThread]threads=newThreadnumberOfThreads]
s1+=20;
threads[t] = newThread(new FloatLoop(t) } elsejava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
threads[t].start();
} for }
t.join();
}
System.out.println("Float loop java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
staticfinalfloat kFloatConst0 = 256, +2.)java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67 staticpublicvoid run( { staticfinalint kArraySize = 128; volatilestaticfloat floatField while(sEntered java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
sExitFlag =; if (value ! }elsejava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
} ", java.lang.StringIndexOutOfBoundsException: Range [0, 36) out of bounds for length 5
}
}
// Create an empty int[] to force loading the int[] class before compiling $noinline$busyLoop. // This makes sure the compiler can properly type int[] and not bail. staticint[] emptyArray = newint[0];
// On Arm64: // This loop is likely to be vectorized which causes the full 16-byte Q-register to be saved // across slow paths. int[] array = newint[kArraySize]; for (int i = 0; i < kArraySize; i++) {
array[i]++;
}
sEntered = true; float s0 = kFloatConst0; float s1 = kFloatConst1; for (int i = 0; !sExitFlag; i++) { if (i % 2 == 0) {
s0 += 2.0;
s1 += 2.0;
} else {
s0 -= 2.0;
s1 -= 2.0;
} // SuspendCheckSlowPath must record correct stack offset for spilled FP registers.
}
Main.assertIsInterpreted();
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