P3 The VM needs to be changed to support the new features of JSR-166. While most of
the changes are in the library, the following VM changes are needed:
* Support for new methods in sun.misc.Unsafe for volatile field access.
* Support for new methods in sun.misc.Unsafe to provide atomic compare-and-swap operations
* Suport for a new method java.lang.System.nanoTime() for high-resolution timing
* Changes to both Compiler1 and Compiler2 to handle the new methods as intrinsics.
* Changes to improve the memory barriers generated for volatile memory accesses.
- duplicates
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JDK-4679944 memory barrier instructions emitted for "volatile" keyword way too heavy on IA32
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- Closed
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- Closed
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- Closed
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- Closed
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- Closed
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- Closed
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- relates to
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JDK-4912876 JVM_NanoTime not exported on Linux
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- Closed
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(1 duplicates, 1 relates to)