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103 Commits

Author SHA1 Message Date
Zoltan Majo
dfa6539a6a 8086053: Address inconsistencies regarding ZeroTLAB 
Add zero-initialization to C1 for fast TLAB refills; strenghten C2 conditions for skipping zero-initialization.

Reviewed-by: kvn, thartmann
 2016-01-12 09:19:09 +01:00
Hui Shi
3767315e75 8144993: Elide redundant memory barrier after AllocationNode 
Elide memory barrier for AllocationNode when it doesn't escape in initializer and has an MemBarRelease node at exit of initializer method.

Reviewed-by: aph, mdoerr, goetz, kvn, asiebenborn
 2015-12-27 05:15:14 -08:00
Kim Barrett
e8c5bc2024 8143014: Access PtrQueue member offsets through derived classes 
Moved accessors to derived classes and updated callers.

Reviewed-by: tschatzl, jmasa, twisti
 2015-11-17 16:40:52 -05:00
Nils Eliasson
3307d0f163 Merge 2015-11-06 11:34:03 +01:00
Tobias Hartmann
7af927f9c1 8141132: JEP 254: Compact Strings 
Adopt a more space-efficient internal representation for strings.

Co-authored-by: Brent Christian <brent.christian@oracle.com>
Co-authored-by: Vivek Deshpande <vivek.r.deshpande@intel.com>
Co-authored-by: Charlie Hunt <charlie.hunt@oracle.com>
Co-authored-by: Vladimir Kozlov <vladimir.kozlov@oracle.com>
Co-authored-by: Roger Riggs <roger.riggs@oracle.com>
Co-authored-by: Xueming Shen <xueming.shen@oracle.com>
Co-authored-by: Aleksey Shipilev <aleksey.shipilev@oracle.com>
Co-authored-by: Sandhya Viswanathan <sandhya.viswanathan@intel.com>
Reviewed-by: alanb, bdelsart, coleenp, iklam, jiangli, jrose, kevinw, naoto, pliden, roland, smarks, twisti
 2015-11-03 09:41:03 +01:00
Goetz Lindenmaier
83b3b21342 8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux 
Reviewed-by: stuefe, coleenp, roland
 2015-10-22 13:07:10 -04:00
Hui Shi
0f4b248b18 8136596: Remove aarch64: MemBarRelease when final field's allocation is NoEscape or ArgEscape 
Elide MemBar when AllocateNode _is_non_escaping

Reviewed-by: kvn, roland
 2015-09-21 10:51:33 +02:00
Roland Westrelin
8942ef410f 8134321: tools/pack200/Pack200Test.java crashes in the VM PIT jdk9 b79 
Code that capture field values of eliminated allocation at a safepoint when there's an arraycopy behind a Phi is broken

Reviewed-by: kvn
 2015-08-26 09:49:37 +02:00
Roland Westrelin
0baf2f7e8a 8130847: Cloned object's fields observed as null after C2 escape analysis 
Eliminated instance/array written to by an array copy variant must be correctly initialized when reallocated at a deopt

Reviewed-by: kvn, vlivanov
 2015-08-15 02:54:18 +02:00
Roland Westrelin
a9cdbd0407 8076188: Optimize arraycopy out for non escaping destination 
If the destination of an arraycopy is non escaping, the arraycopy may be optimized out

Reviewed-by: kvn, vlivanov
 2015-05-12 10:27:50 +02:00
Calvin Cheung
7bb3af5d16 Merge 2015-04-17 14:37:20 -07:00
Daniel D. Daugherty
884f0d320f 8073165: Contended Locking fast exit bucket 
JEP-143/JDK-8073165 Contended Locking fast exit bucket

Co-authored-by: Dave Dice <dave.dice@oracle.com>
Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Reviewed-by: dholmes, acorn, dice, dcubed
 2015-04-16 08:23:26 -07:00
Roland Westrelin
71e31ee0b9 8073480: C2 should optimize explicit range checks 
Explicit range checks should be recognized by C2

Reviewed-by: kvn, vlivanov
 2015-03-17 10:06:31 +01:00
David Chase
46fa321d63 8069412: Locks need better debug-printing support 
Added better debug-printing support and enhanced LogCompilation tool

Reviewed-by: kvn, roland, dholmes
 2015-02-17 13:54:53 -05:00
Zoltan Majo
eb5be4c2fe 8066312: Add new Node* Node::find_out(int opc) method 
Added methods find_user_with() and has_user_with() for searching for a particular out type.

Reviewed-by: kvn, jrose
 2015-01-19 09:32:40 +01:00
Roland Westrelin
15dcd41e87 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94 
OOM during reallocation of scalar replaced objects in deoptimization causes crashes

Reviewed-by: kvn, jrose
 2014-11-25 17:33:59 +01:00
David Chase
f454e5e02c Merge 2014-11-13 11:35:15 -05:00
Zoltan Majo
49b224a4f7 8057622: java/util/stream/test/org/openjdk/tests/java/util/stream/InfiniteStreamWithLimitOpTest: SEGV inside compiled code (sparc) 
In Parse::array_store_check(), add control edge FROM IfTrue branch of runtime type check of the destination array TO loading _element_klass from destination array.

Reviewed-by: kvn, roland, anoll
 2014-11-06 09:40:58 +01:00
Bengt Rutisson
4601eb634a 8061308: Remove iCMS 
Reviewed-by: mgerdin, jmasa
 2014-10-31 09:10:51 +01:00
Roland Westrelin
400f0f7a8f 8055153: nsk/stress/jck60/jck60014 crashes on sparc 
Missing control for LoadRange and LoadKlass nodes created during arraycopy node expansion

Reviewed-by: kvn, iveresov
 2014-08-19 17:23:38 +02:00
Roland Westrelin
a56ade07c7 7173584: Implement arraycopy as a macro node 
Delay the conversion of arraycopy to stub calls to macro expansion

Reviewed-by: kvn, iveresov
 2014-08-11 14:12:51 +02:00
Roland Westrelin
355f6eb4ae 8046698: assert(false) failed: only Initialize or AddP expected macro.cpp:943 
PhiNode inserted between AllocateNode and Initialization node confuses allocation elimination

Reviewed-by: kvn
 2014-08-02 07:06:08 +02:00
Tobias Hartmann
efc7daaf82 8054081: Crashes with assert "modified node is not on IGVN._worklist" 
Modified safepoint nodes are not added to the IGVN worklist by 'PhaseMacroExpand::scalar_replacement()'

Reviewed-by: kvn, roland
 2014-08-05 08:25:10 +02:00
Tobias Hartmann
11eb4553c9 8040213: C2 does not put all modified nodes on IGVN worklist 
Verification code is added that checks if modified nodes are put on the IGVN worklist and modified nodes are processed by 'PhaseIterGVN::transform_old()'

Reviewed-by: kvn, jrose
 2014-07-25 10:06:17 +02:00
Tobias Hartmann
2a0815a55e 8034812: remove IDX_INIT macro hack in Node class 
The IDX_INIT macro used by Node::Node(...) to retrieve the Compile object is removed and replaced by a call to Compile::current(). The Node constructor, new operator and all calls to it are adapted accordingly.

Reviewed-by: kvn, jrose, iveresov, goetz
 2014-06-02 08:07:29 +02:00
Morris Meyer
6db303a301 8001532: C2 node files refactoring 
Split C2 node files into cast, convert, countbits, intrinsic, move, narrowptr and opaquenode classes

Reviewed-by: kvn, morris
 2014-04-01 09:05:20 -07:00
Vladimir Kozlov
97a51c5c2a 8031320: Use Intel RTM instructions for locks 
Use RTM for inflated locks and stack locks.

Reviewed-by: iveresov, twisti, roland, dcubed
 2014-03-20 17:49:27 -07:00
Vladimir Kozlov
c3a0e80e0b Merge 2014-01-28 12:25:34 -08:00
Mikael Vidstedt
a0da47fd66 8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013 
Copyright year updated for files modified during 2013

Reviewed-by: twisti, iveresov
 2013-12-24 11:48:39 -08:00
Goetz Lindenmaier
13b13f5259 8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering 
Add a field to C2 LoadNode and StoreNode classes which indicates whether the load/store should do an acquire/release on platforms which support it.

Reviewed-by: kvn
 2013-11-15 11:05:32 -08:00
Erik Helin
30f059b5fc 8015107: NPG: Use consistent naming for metaspace concepts 
Reviewed-by: coleenp, mgerdin, hseigel
 2013-08-12 17:37:02 +02:00
Vladimir Kozlov
ccfb92c6a9 8012972: Incremental Inlining should support scalar replaced object in debug info 
Store in _first_index not absolute index but an index relative to the last (youngest) jvms->_scloff value

Reviewed-by: roland, twisti
 2013-08-23 11:41:37 -07:00
Vladimir Kozlov
d7176bf7f8 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis() 
Add NULL checks and asserts for Type::make_ptr() returned value.

Reviewed-by: twisti
 2013-05-09 17:28:04 -07:00
Vladimir Kozlov
b4977e887a 6934604: enable parts of EliminateAutoBox by default 
Resurrected autobox elimination code and enabled part of it by default.

Reviewed-by: roland, twisti
 2013-05-08 15:08:01 -07:00
Roland Westrelin
748083843a 8009460: C2compiler crash in machnode::in_regmask(unsigned int) 
7121140 may not correctly break the Allocate -> MemBarStoreStore link

Reviewed-by: kvn
 2013-03-06 10:28:38 +01:00
Vladimir Kozlov
9e0c61f822 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 
Use SSE4.2 and AVX2 instructions for encodeArray intrinsic.

Reviewed-by: roland
 2013-01-22 15:34:16 -08:00
Bharadwaj Yadavalli
2d2532e740 7092905: C2: Keep track of the number of dead nodes 
Keep an (almost) accurate running count of the reachable (live) flow graph nodes.

Reviewed-by: kvn, twisti, jrose, vlivanov
 2012-11-27 17:24:15 -08:00
Roland Westrelin
61eb5a0549 7054512: Compress class pointers after perm gen removal 
Support of compress class pointers in the compilers.

Reviewed-by: kvn, twisti
 2012-10-09 10:11:38 +02:00
Bharadwaj Yadavalli
d5d2e78faa 7193318: C2: remove number of inputs requirement from Node's new operator 
Deleted placement new operator of Node - node(size_t, Compile *, int).

Reviewed-by: kvn, twisti
 2012-09-27 09:38:42 -07:00
Jon Masamitsu
5c58d27aac 6964458: Reimplement class meta-data storage to use native memory 
Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
 2012-09-01 13:25:18 -04:00
Zhengyu Gu
a39b17624a 6995781: Native Memory Tracking (Phase 1) 
7151532: DCmd for hotspot native memory tracking

Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd

Reviewed-by: acorn, coleenp, fparain
 2012-06-28 17:03:16 -04:00
Vlaidmir Ivanov
dd85e2f356 7173340: C2: code cleanup: use PhaseIterGVN::replace_edge(Node*, int, Node*) where applicable 
Replace frequent C2 optimizer code patterns with new methods calls

Reviewed-by: kvn, twisti
 2012-06-12 16:23:31 -07:00
Vladimir Kozlov
e6015c7c26 7143491: G1 C2 CTW: assert(p2x->outcnt() == 2) failed: expects 2 users: Xor and URShift nodes 
Adjust the assert and code in eliminate_card_mark() method for case when stored value is NULL.

Reviewed-by: iveresov, never
 2012-02-07 16:33:43 -08:00
Vladimir Kozlov
b9cba282ee 7129618: assert(obj_node->eqv_uncast(obj),""); 
Relax verification and locks elimination checks for new implementation (EliminateNestedLocks).

Reviewed-by: iveresov
 2012-01-13 12:58:26 -08:00
Vladimir Kozlov
337666a80c 7128355: assert(!nocreate) failed: Cannot build a phi for a block already parsed 
Do not common BoxLock nodes and avoid creating phis of boxes.

Reviewed-by: never
 2012-01-12 14:45:04 -08:00
Vladimir Kozlov
791afc42da 7128352: assert(obj_node == obj) failed 
Compare uncasted object nodes.

Reviewed-by: never
 2012-01-10 18:05:38 -08:00
Vladimir Kozlov
94927c382b 7125896: Eliminate nested locks 
Nested locks elimination done before lock nodes expansion by looking for outer locks of the same object.

Reviewed-by: never, twisti
 2012-01-07 13:26:43 -08:00
Vladimir Kozlov
05ec1c0816 7125879: assert(proj != NULL) failed: must be found 
Leave i_o attached to slow allocation call when there are no i_o users after the call.

Reviewed-by: iveresov, twisti
 2011-12-30 11:43:06 -08:00
Vladimir Kozlov
f96f3e5e85 7123954: Some CTW test crash with SIGSEGV 
Correct Allocate expansion code to preserve i_o when only slow call is generated.

Reviewed-by: iveresov
 2011-12-27 15:08:43 -08:00
Roland Westrelin
97439fb4ff 7121140: Allocation paths require explicit memory synchronization operations for RMO systems 
Adds store store barrier after initialization of header and body of objects.

Reviewed-by: never, kvn
 2011-12-20 16:56:50 +01:00