[Bug 3415] [IcedTea8] Backport "8175887: C1 value numbering handling of Unsafe.get*Volatile is incorrect"
bugzilla-daemon at icedtea.classpath.org
bugzilla-daemon at icedtea.classpath.org
Mon Jul 31 02:53:41 UTC 2017
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=3415
--- Comment #4 from hg commits <mercurial at icedtea.classpath.org> ---
details:
http://icedtea.classpath.org//hg/icedtea8?cmd=changeset;node=8f340ebebec3
author: Andrew John Hughes <gnu_andrew at member.fsf.org>
date: Thu Jul 27 05:52:43 2017 +0100
Bump shenandoah to
aarch64-shenandoah-jdk8u141-b16-shenandoah-merge-2017-07-26
Upstream changes:
- Amend "ArrayCopy verification code fix" with 8u-specific node hierarchy
test
- Amend "Refactor asm acmp" with a few missing changes
- [backport] aarch64 store check fix
- [backport] Account "shared" out-of-LAB allocations separately
- [backport] Adaptive should not be scared of user-requested System.gc()
- [backport] Added assertion for page alignment of heap's base address
- [backport] Add "verify jcstress" acceptance test
- [backport] "Allocation failure" cause should not be overwritten
- [backport] ArrayCopy verification code fix
- [backport] Assorted cleanups
- [backport] "Before Full GC" verification is too strong for
OOME-during-evac
- [backport] C1 stores constants without read barriers
- [backport] Cleanup AArch64 code
- [backport] Cleanup class unloading and string intern code
- [backport] Cleanup duplicated Shenandoah task queue declarations
- [backport] Cleanups
- [backport] Cleanup ShenandoahBarrierSet::write_barrier
- [backport] Cleanup ShenandoahHeap::do_evacuation
- [backport] Clean up unused fields and methods
- [backport] Cleanup: update-refs check in_collection_set twice
- [backport] Code cache roots styles
- [backport] Concurrent code cache evacuation + bugfixes
- [backport] Concurrent preclean + Fix weakref precleaning
- [backport] Correct prefetch offset for marked object iteration
- [backport] Deferred region cleanup.
- [backport] Dense ShenandoahHeapRegion printout
- [backport] Detailed ParallelCleanupTask statistics + Split out Full GC
stats for parallel cleaning
- [backport] Disable aggressive+verification test configs (jtreg eats up
last configuration)
- [backport] Do not abandon RP discovery on conc GC cancel, do that only
before Full GC
- [backport] Eliminating _num_regions variable in ShenandoahHeap
- [backport] Ensure collection set and cset map are consistent
- [backport] Fallback to shared allocation if GCLAB is not available
- [backport] Fast synchronizer root scanning
- [backport] "F: Code Cache Roots" is missing from gc+stats
- [backport] Fix DerivedPointerTable handling when scanning roots twice
in init-evac phase
- [backport] Fixed a few of early returns that calling register_gc_end()
- [backport] Fix live data accounting for humongous region
- [backport] Fix memory Phis with only data uses
- [backport] Fix recycled regions zapping
- [backport] Fix up pointer volatility
- [backport] Generic verification should not trust bitmaps
- [backport] Heap/matrix verification for all reachable objects
- [backport] Heap memory usage counting not longer needs to be atomic
- [backport] Heap region recycling should call explicit clear() and
request zapping
- [backport] Heap region verification
- [backport] Implementation of interpreter matrix barrier on aarch64
- [backport] Implement early update references phase.
- [backport] implicit null checks broken on aarch64
- [backport] Increase timeout for EvilSyncBug test
- [backport] Lazy parallel code cache iterator
- [backport] Make statistics gathering span more operations
- [backport] Make sure atomic operations are done on "volatile" fields
- [backport] Make sure new_active_workers is used
- [backport] Make {T,GC}LAB statistics unconditional
- [backport] Mark-compact and heuristics should consistently process refs
and unload classes
- [backport] minor fix to optimization of java mirror comparison
- [backport] more barrier on constant oop fixes + couple small unrelated
fixes
- [backport] More collection set and matrix cleanup
- [backport] Nit: mark-compact phase 3 (Adjust Pointers) should announce
itself as "Phase 3"
- [backport] Optimize heap region size checks
- [backport] Optimize heap verification
- [backport] Out-of-TLAB evacuation should overwrite stale copies
- [backport] Parallel code cache scanning
- [backport] Parallel verification
- [backport] Print correct message about gross times in stats
- [backport] Print heap changes in phases that actually change heap
occupancy
- [backport] Print more detailed final UR stats
- [backport] Print more details for weak ref and class unloading stats
- [backport] Properly react on -ClassUnloading
- [backport] Purge ealier version of redefined classes during class
unloading
- [backport] Purge ratio, global, connections heuristics.
- [backport] Purge shenandoahHumongous.hpp
- [backport] Purge ShenandoahVerify(Reads|Writes)ToFromSpace.
- [backport] Reduce region retirement during tlab allocation
- [backport] Refactor asm acmp (x86, aarch64, renames)
- [backport] Refactor BrooksPointer asserts
- [backport] Refactor heap verification
- [backport] Reference processing deadlocks with -ParallelRefProcEnabled
- [backport] Reference processors might use non-forwarded alive checks
- [backport] Region sampling may not be enabled because last timetick is
uninitialized
- [backport] Rehash ShenandoahHeap section in hs_err
- [backport] Reinstate "Purge" block in final-mark stats
- [backport] Relax assert to not fire at safepoint
- [backport] Remove heap printing routines from ShenandoahHeap
- [backport] Remove obsolete compile_resolve_oop_runtime() methods
- [backport] Rename final mark operations
- [backport] Rename ShenandoahBarriersForConst
- [backport] Replace ShHeapRegionSet::get with get_fast
- [backport] Report correct total garbage data. Print out garbage and
cset data with -Xlog:gc+ergo
- [backport] Report oops and fwdptrs verification failures fully
- [backport] Result of write barrier on constant not used
- [backport] Separate Full GC root operations in GC stats
- [backport] ShenandoahCollectionSet refactor
- [backport] ShenandoahGCSession used wrong timer for full GC
- [backport] ShenandoahHeap::evacuate_object() with boolean result flag.
- [backport] Shenandoah options should be uintx
- [backport] shenandoah_wb should fallback to slow path with -UseTLAB +
Fix aarch64 compilation error due to shenandoah_wb change
- [backport] ShenandoahWriteBarrierNode::memory_dominates_all_paths()
assert failure when compiling methods using unsafe
- [backport] Shortcut reference processing when no work is available
- [backport] Simplify parallel synchronizer roots iterator
- [backport] Skip RESOLVE when references update is not needed
- [backport] Stats should attribute "Resize TLABs" properly, and mention
"Pause" for init/final mark
- [backport] Stats should not record past-shutdown events
- [backport] "String/Symbol/CodeCache" -> "Str/Sym, Code Cache"
- [backport] Tests should use all heuristics and pass heap verification +
Disable aggressive+verification test configs
- [backport] Total pauses should include final-mark pauses
- [backport] Trim down native GC footprint
- [backport] Update region sampling to include TLAB/GCLAB allocation data
- [backport] Update roots should always handle derived pointers
- [backport] Update ShenandoahHeapSampling to avoid double counting.
- [backport] Update statistics to capture thread data accurately
- [backport] Use CollectedHeap::base() instead of
ShenandoahHeap::first_region_bottom()
- [backport] Use lock version heap region memory allocator
- [backport] Use scoped object for gc session/phases recording
- [backport] Variable steps in adaptive heuristics
- [backport] Verification error log is truncated
- [backport] Verification levels
- [backport] Verification should assert complete bitmaps in most phases +
Disable complete bitmap verification in init mark
- [backport] Verifier performance improvements: scan objects once, avoid
double oop checks
- [backport] Verifier should not assert cset in forwarded test block
- [backport] Verifier should print extended info on referenced location
- [backport] Verifier should use non-optimized root scans
- [backport] Verify marked objects
- [backport] Verify TAMS and object sizes
- [backport] write barrier can get stuck below predicates resulting in
unschedulable graph
- S8175887: C1 value numbering handling of Unsafe.get*Volatile is
incorrect".
- S8140584: nmethod::oops_do_marking_epilogue always runs verification
code
- S8180175, S8180599: Cherry-pick/synchronize
- Cleanup: Removed redundant ClassLoaderData::clear_claimed_marks() calls
- Cleanup shared code.
- Fixed memory leak in region garbage cache
- Fix return type of ShenandoahHeapRegion::region_size_words_jint()
- Improved comment about AArch64bit addressing in assembler.
- Leak mutex in ShenandoahTaskTerminator
- Make sure C2 arguments are not used when C2 is disabled.
- Refactor parallel ClassLoaderData iterator
- Revert G1 changes and bring shared BitMap
ChangeLog:
2017-07-26 Andrew John Hughes <gnu_andrew at member.fsf.org>
Bump shenandoah to
aarch64-shenandoah-jdk8u141-b16-shenandoah-merge-2017-07-26
* patches/hotspot/shenandoah/8175887-pr3415.patch:
Removed as applied upstream.
* Makefile.am:
(ICEDTEA_PATCHES): Move patch that still
applies to AArch32, but not Shenandoah, to the AArch32-only
block. Add PR3224 fix in the Shenandoah-only block.
* NEWS: Updated.
* hotspot.map.in: Bump shenandoah to
aarch64-shenandoah-jdk8u141-b16-shenandoah-merge-2017-07-26.
* patches/hotspot/aarch32/8175887-pr3415.patch,
Patch is still needed for AArch32 so replace symlink
with the actual patch from patches/hotspot/shenandoah.
* patches/hotspot/shenandoah/pr3224.patch:
Shenandoah update broke compilation without precompiled
headers again. This patch fixes it.
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