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comparison jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProvider.java @ 24111:8abcd8e1285d

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missing checks in HotSpotMemoryAccessProviderImpl can cause VM assertions to fail (JDK-8177673)
author Doug Simon <doug.simon@oracle.com>
date Thu, 30 Mar 2017 21:18:43 +0200
parents b5557b757040
children
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24110:a8378ff1936d 24111:8abcd8e1285d
29 /** 29 /**
30 * HotSpot specific extension of {@link MemoryAccessProvider}. 30 * HotSpot specific extension of {@link MemoryAccessProvider}.
31 */ 31 */
32 public interface HotSpotMemoryAccessProvider extends MemoryAccessProvider { 32 public interface HotSpotMemoryAccessProvider extends MemoryAccessProvider {
33 33
34 /**
35 * @throws IllegalArgumentException if the address computed from {@code base} and
36 * {@code displacement} does not denote a location holding a narrow oop
37 */
34 JavaConstant readNarrowOopConstant(Constant base, long displacement); 38 JavaConstant readNarrowOopConstant(Constant base, long displacement);
35 39
36 Constant readKlassPointerConstant(Constant base, long displacement); 40 Constant readKlassPointerConstant(Constant base, long displacement);
37 41
38 Constant readNarrowKlassPointerConstant(Constant base, long displacement); 42 Constant readNarrowKlassPointerConstant(Constant base, long displacement);