Merge

Merge

Merge

8055098: WB API should be extended to provide information about size and age of object. Summary: Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC. Reviewed-by: tschatzl, sjohanss Contributed-by: Leonid Mesnik <leonid.mesnik@oracle.com>

Merge

Merge

8055153: nsk/stress/jck60/jck60014 crashes on sparc Summary: missing control for LoadRange and LoadKlass nodes created during arraycopy node expansion Reviewed-by: kvn, iveresov

8055503: Rollback 8054164 changeset Reviewed-by: iveresov

Merge

8054164: solaris makefile Reviewed-by: roland

8048879: "unexpected yanked node" opto/postaloc.cpp:139 Summary: MemBarAcquireNode prevents deletion of dead LoadNNode. Added condition to 'has_special_unique_user' to trigger deletion. Reviewed-by: kvn, iveresov

Merge

8054402: "klass->is_loader_alive(_is_alive)) failed: must be alive" for anonymous classes Summary: Because anonymous classes are not in the system dictionary, we have to set 'unloading_occurred' based on 'CLDG::do_unloading()'. Added jtreg test. Reviewed-by: kvn, coleenp

8054883: Segmentation error while running program Summary: Fix pattern matching of range check Reviewed-by: kvn

8047952: Remove _FORTIFY_SOURCE from fastdebug and slowdebug builds Reviewed-by: dholmes

8054927: Missing MemNode::acquire ordering in some volatile Load nodes Summary: Fixed memory ordering parameter and added missing barriers for volatile loads. Reviewed-by: roland, iveresov

Merge

8054224: Recursive method that was compiled by C1 is unable to catch StackOverflowError Summary: do not update exception cache if exception is replaced when thrown Reviewed-by: kvn, iveresov

8043913: remove legacy code in SPARC's VM_Version::platform_features Summary: Kept only getisax(2) to determine platform features Reviewed-by: kvn, roland Contributed-by: Zoltan Majo <zoltan.majo@oracle.com>

Merge

7173584: Implement arraycopy as a macro node Summary: delay the conversion of arraycopy to stub calls to macro expansion Reviewed-by: kvn, iveresov

8043284: Optimize signed integer comparison Summary: Folding of BoolNode if input add/sub of CmpI overflows and we can prove that compared value is not in the two resulting ranges. Added test for CmpI and CmpU optimizations. Reviewed-by: kvn, rbackman, roland

Merge

8055635: Missing include in g1RegionToSpaceMapper.hpp results in unresolved symbol of fastdebug build without precompiled headers Reviewed-by: mgerdin, ehelin

8055525: Bigapp weblogic+medrec fails to startup after JDK-8038423 Summary: If large pages are enabled and configured in Linux, the VM always pre-commits the entire space. The VM fails verification of the commit of the initial heap because some internal data structure marked all memory pages of the heap as committed during initialization. This makes the code think that we attempted a double-commit during first allocation of the heap. Remove the initial marking of memory pages of the heap to committed. Reviewed-by: mgerdin

Merge

8038423: G1: Decommit memory within heap Summary: Allow G1 to decommit memory of arbitrary regions within the heap and their associated auxiliary data structures card table, BOT, hot card cache, and mark bitmaps. Reviewed-by: mgerdin, brutisso, jwilhelm

8044406: JVM crash with JDK8 (build 1.8.0-b132) with G1 GC Summary: Fill the last card that has been allocated into with a dummy object Reviewed-by: tschatzl, mgerdin

Merge

8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data Summary: Let HeapRegionSeq manage the heap region and auxiliary data to decrease the amount of responsibilities of G1CollectedHeap, and encapsulate this work from other code. Reviewed-by: jwilhelm, jmasa, mgerdin, brutisso