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35 Commits

Author SHA1 Message Date
Roland Westrelin
493557fc90 8031752: Failed speculative optimizations should be reattempted when root of compilation is different 
Support for speculative traps that keep track of the root of the compilation in which a trap occurs.

Reviewed-by: kvn, twisti
 2014-02-25 18:16:24 +01:00
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
Roland Westrelin
1b5bd82335 8024070: C2 needs some form of type speculation 
Record unused type profile information with type system, propagate and use it.

Reviewed-by: kvn, twisti
 2013-10-23 12:40:23 +02:00
Roland Westrelin
59adc04ee5 8024067: Missing replace_in_map() calls following null checks 
Add replace_in_map() calls following some null checks in type checks

Reviewed-by: kvn
 2013-10-03 10:55:07 +02:00
Vladimir Ivanov
f0e77ac67f 8001107: @Stable annotation for constant folding of lazily evaluated variables 
Co-authored-by: John Rose <john.r.rose@oracle.com>
Reviewed-by: rbackman, twisti, kvn
 2013-09-10 14:51:48 -07:00
Martin Doerr
c678f0173a 8023597: Optimize G1 barriers code for unsafe load_store 
Avoid loading old values in G1 pre-barriers for inlined unsafe load_store nodes.

Reviewed-by: kvn, tonyp
 2013-08-28 11:22:43 +02:00
Christian Thalinger
31411dbc32 7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop() 
Reviewed-by: kvn, jrose
 2012-11-26 17:25:11 -08:00
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
Christian Thalinger
12901d0e5b 7023639: JSR 292 method handle invocation needs a fast path for compiled code 
6984705: JSR 292 method handle creation should not go through JNI

Remove assembly code for JDK 7 chained method handles

Co-authored-by: John Rose <john.r.rose@oracle.com>
Co-authored-by: Michael Haupt <michael.haupt@oracle.com>
Reviewed-by: jrose, twisti, kvn, mhaupt
 2012-07-24 10:51:00 -07:00
Vladimir Kozlov
eb4a860bc3 6924259: Remove String.count/String.offset 
Allow a version of String class that doesn't have count and offset fields.

Reviewed-by: never, coleenp
 2012-05-14 09:36:00 -07:00
Vladimir Kozlov
6d0283ed8e Merge 2011-04-29 11:15:30 -07:00
Vladimir Kozlov
abc5f94df7 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post 
Memory slices should be always created for non-static fields after allocation

Reviewed-by: never
 2011-04-20 18:29:35 -07:00
John Cuthbertson
7c844aba67 Merge 2011-04-14 13:45:41 -07:00
John R Rose
41745904a3 Merge 2011-04-09 21:16:12 -07:00
John Cuthbertson
a08e1ce906 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error 
A referent object that is only weakly reachable at the start of concurrent marking but is re-attached to the strongly reachable object graph during marking may not be marked as live. This can cause the reference object to be processed prematurely and leave dangling pointers to the referent object. Implement a read barrier for the java.lang.ref.Reference::referent field by intrinsifying the Reference.get() method, and intercepting accesses though JNI, reflection, and Unsafe, so that when a non-null referent object is read it is also logged in an SATB buffer.

Reviewed-by: kvn, iveresov, never, tonyp, dholmes
 2011-04-07 09:53:20 -07:00
Erik Trimble
c9e484d473 7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass 
Update the copyright to be 2010 on all changed files in OpenJDK

Reviewed-by: ohair
 2011-04-05 14:12:31 -07:00
Vladimir Kozlov
68f1177f59 7032314: Allow to generate CallLeafNoFPNode in IdealKit 
Added CallLeafNoFPNode generation to IdealKit. Added i_o synchronization.

Reviewed-by: never
 2011-04-02 09:49:27 -07:00
Vladimir Kozlov
3de260da41 7008866: Missing loop predicate for loop with multiple entries 
Add predicates when loop head bytecode is parsed instead of when back branch bytecode is parsed.

Reviewed-by: never
 2011-03-21 11:28:14 -07:00
Stefan Karlsson
8006fe8f75 6989984: Use standard include model for Hospot 
Replaced MakeDeps and the includeDB files with more standardized solutions.

Reviewed-by: coleenp, kvn, kamg
 2010-11-23 13:22:55 -08:00
John R Rose
c7e50e8305 6912064: type profiles need to be exploited more for dynamic language support 
Reviewed-by: kvn
 2010-08-20 23:40:30 -07:00
Erik Trimble
ba7c173659 6941466: Oracle rebranding changes for Hotspot repositories 
Change all the Sun copyrights to Oracle copyright

Reviewed-by: ohair
 2010-05-27 19:08:38 -07:00
Tom Deneau
f23b68b367 6902182: 4/4 Starting with jdwp agent should not incur performance penalty 
Rename can_post_exceptions support to can_post_on_exceptions. Add support for should_post_on_exceptions flag to permit per JavaThread optimizations.

Reviewed-by: never, kvn, dcubed
 2010-02-01 17:35:05 -07:00
Tom Rodriguez
9db2092b1b 6892658: C2 should optimize some stringbuilder patterns 
Reviewed-by: kvn, twisti
 2009-11-12 09:24:21 -08:00
Changpeng Fang
c492f4cde5 6877254: Server vm crashes with no branches off of store slice" when run with CMS and UseSuperWord(default) 
Design StoreCMNode::Ideal to promote its oopStore input if the input is a MergeMem node

Reviewed-by: kvn, never
 2009-09-14 09:49:54 -07:00
Changpeng Fang
ae00753bf7 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot 
Developed a reexecute logic for the interpreter to reexecute the bytecode when deopt happens

Reviewed-by: kvn, never, jrose, twisti
 2009-07-31 17:12:33 -07:00
Vladimir Kozlov
c3efa899b6 6851742: (EA) allocation elimination doesn't work with UseG1GC 
Fix eliminate_card_mark() to eliminate G1 pre/post barriers.

Reviewed-by: never
 2009-07-16 14:10:42 -07:00
Tom Rodriguez
3bdd70fe18 6818666: G1: Type lost in g1 pre-barrier 
Reviewed-by: kvn
 2009-06-26 13:03:29 -07:00
Changpeng Fang
04fdef79fa 6589834: deoptimization problem with -XX:+DeoptimizeALot 
Relocate the stack pointer adjustment to where uncommon_trap is actually inserted for new_array.

Reviewed-by: kvn, jrose
 2009-04-23 14:04:24 -07:00
Xiomara Jayasena
2be2e027b0 6814575: Update copyright year 
Update copyright for files that have been modified in 2009, up to 03/09

Reviewed-by: katleman, tbell, ohair
 2009-03-09 13:28:46 -07:00
Tom Rodriguez
67f20d82c9 6442502: assert(bits,"Use TypePtr for NULL") on linux-x86 
Reviewed-by: kvn
 2009-02-04 23:17:38 -08:00
Y. Srinivas Ramakrishna
18f3386a98 6711316: Open source the Garbage-First garbage collector 
First mercurial integration of the code for the Garbage-First garbage collector.

Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
 2008-06-05 15:57:56 -07:00
J. Duke
8153779ad3 Initial load 2007-12-01 00:00:00 +00:00