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8155965: Unsafe.weakCompareAndSetVolatile entry points and intrinsics

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Reviewed-by: psandoz, vlivanov
This commit is contained in:
Aleksey Shipilev 2016-05-06 17:59:35 +03:00
parent 9773289026
commit ffc21de072
9 changed files with 60 additions and 0 deletions
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12
hotspot/test/compiler/unsafe/X-UnsafeAccessTest.java.template
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@ -302,7 +302,19 @@ public class $Qualifier$UnsafeAccessTest$Type$ {
$type$ x = UNSAFE.get$Type$(base, offset);
assertEquals(x, $value2$, "weakCompareAndSwapRelease $type$");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = UNSAFE.weakCompareAndSwap$Type$Volatile(base, offset, $value2$, $value1$);
}
assertEquals(success, true, "weakCompareAndSwapVolatile $type$");
$type$ x = UNSAFE.get$Type$(base, offset);
assertEquals(x, $value1$, "weakCompareAndSwapVolatile $type$");
}
#end[JdkInternalMisc]
UNSAFE.put$Type$(base, offset, $value2$);
// Compare set and get
{