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test/compiler/stable/StableConfiguration.java
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*** 39,52 ****
isServerWithStable = isStableEnabled && get();
System.out.println("@Stable: " + (isStableEnabled ? "enabled" : "disabled"));
System.out.println("Server Compiler: " + get());
}
// ::get() is among immediately compiled methods.
static boolean get() {
try {
! Method m = StableConfiguration.class.getDeclaredMethod("get");
int level = WB.getMethodCompilationLevel(m);
if (level > 0) {
return (level == 4);
} else {
String javaVM = System.getProperty("java.vm.name", "");
--- 39,72 ----
isServerWithStable = isStableEnabled && get();
System.out.println("@Stable: " + (isStableEnabled ? "enabled" : "disabled"));
System.out.println("Server Compiler: " + get());
}
+ // The method 'get' below returns true if the method is server compiled
+ // and is used by the Stable tests to determine whether methods in
+ // general are being server compiled or not as the -XX:+FoldStableValues
+ // option is only applicable to -server.
+ //
+ // On aarch64 we DeOptimize when patching. This means that when the
+ // method is compiled as a result of -Xcomp it DeOptimizes immiediately.
+ // The result is that getMethodCompilationLevel returns 0. This means
+ // the method returns true based on java.vm.name.
+ //
+ // However when the tests are run with -XX:+TieredCompilation and
+ // -XX:TieredStopAtLevel=1 this fails because methods will always
+ // be client compiled.
+ //
+ // Solution is to add a simple method 'get1' which should never be
+ // DeOpted and use that to determine the compilation level instead.
+ static void get1() {
+ }
+
// ::get() is among immediately compiled methods.
static boolean get() {
try {
! get1();
! Method m = StableConfiguration.class.getDeclaredMethod("get1");
int level = WB.getMethodCompilationLevel(m);
if (level > 0) {
return (level == 4);
} else {
String javaVM = System.getProperty("java.vm.name", "");
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