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23 Commits

Author SHA1 Message Date
Vladimir Kozlov
022d690049 6892186: SA does not dump debug info for scalar replaced objects 
Implement scalar replaced objects debug info dump in SA.

Reviewed-by: twisti
 2009-10-21 09:15:33 -07:00
Changpeng Fang
ff9a1bddb5 6873116: Modify reexecute implementation to use pcDesc to record the reexecute bit 
Use PcDesc to keep record of the reexecute bit instead of using DebugInfoStreams

Reviewed-by: kvn, never, twisti
 2009-08-20 12:42:57 -07:00
Vladimir Kozlov
ab7a29cdcc Merge 2009-08-06 09:37:26 -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
Xiomara Jayasena
a63ef10004 6862919: Update copyright year 
Update copyright for files that have been modified in 2009, up to 07/09

Reviewed-by: tbell, ohair
 2009-07-28 12:12:40 -07:00
Vladimir Kozlov
090346b4e8 6823453: DeoptimizeALot causes fastdebug server jvm to fail with assert(false,"unscheduable graph") 
Use a HaltNode on the fall through path of the AllocateArrayNode to indicate that it is unreachable if the array length is negative.

Reviewed-by: never, jrose
 2009-04-03 13:33:32 -07:00
Vladimir Kozlov
9b31d58b98 6809798: SafePointScalarObject node placed into incorrect block during GCM 
Replace the control edge of a pinned node before scheduling.

Reviewed-by: never
 2009-02-26 14:26:02 -08:00
Vladimir Kozlov
f2f18a01e5 6775880: EA +DeoptimizeALot: assert(mon_info->owner()->is_locked(),"object must be locked now") 
Create new "eliminated" BoxLock node for monitor debug info when corresponding locks are eliminated.

Reviewed-by: never
 2008-12-03 13:41:37 -08:00
Vladimir Kozlov
7aae40a95f 6462850: generate biased locking code in C2 ideal graph 
Inline biased locking code in C2 ideal graph during macro nodes expansion

Reviewed-by: never
 2008-11-07 09:29:38 -08:00
Chuck Rasbold
eee15b163e 6711100: 64bit fastdebug server vm crashes with assert(_base == Int,"Not an Int") 
Insert CastII nodes to narrow type of load_array_length() node

Reviewed-by: never, kvn
 2008-09-17 08:29:17 -07:00
Vladimir Kozlov
659ca734bb 6706829: Compressed Oops: add debug info for narrow oops 
Add support for narrow oops in debug info to avoid decoding.

Reviewed-by: rasbold, never
 2008-09-10 18:23:32 -07:00
Vladimir Kozlov
37306315b2 6736417: Fastdebug C2 crashes in StoreBNode::Ideal 
The result of step_through_mergemem() and remove_dead_region() is not checked in some cases.

Reviewed-by: never
 2008-08-27 09:15:46 -07:00
Vladimir Kozlov
fae39068e8 6723160: Nightly failure: Error: meet not symmetric 
Add missing _instance_id settings and other EA fixes.

Reviewed-by: rasbold
 2008-07-16 16:04:39 -07:00
Erik Trimble
2d6f42d18c Merge 2008-07-11 01:14:44 -07:00
Xiomara Jayasena
c96a95c4b8 6719955: Update copyright year 
Update copyright year for files that have been modified in 2008

Reviewed-by: ohair, tbell
 2008-07-02 12:55:16 -07:00
Vladimir Kozlov
4213e62fb7 6716441: error in meet with +DoEscapeAnalysis 
Set instance_id to InstanceBot for InstPtr->meet(AryPtr) when types are not related.

Reviewed-by: jrose, never
 2008-06-26 13:34:00 -07:00
Vladimir Kozlov
757229db71 6695810: null oop passed to encode_heap_oop_not_null 
Fix several problems in C2 related to Escape Analysis and Compressed Oops.

Reviewed-by: never, jrose
 2008-05-21 10:45:07 -07:00
Vladimir Kozlov
cdd27962da 6674600: (Escape Analysis) Optimize memory graph for instance's fields 
EA gives opportunite to do more aggressive memory optimizations.

Reviewed-by: never, jrose
 2008-03-20 15:11:44 -07:00
Vladimir Kozlov
20046c1a18 6672848: (Escape Analysis) improve lock elimination with EA 
Remove lock/unlock MemBar nodes and specify locks in debug info for deoptimization.

Reviewed-by: never
 2008-03-14 16:40:42 -07:00
Vladimir Kozlov
fc0117cb9a 6674588: (Escape Analysis) Improve Escape Analysis code 
Current EA code has several problems which have to be fixed.

Reviewed-by: jrose, sgoldman
 2008-03-14 15:26:33 -07:00
Vladimir Kozlov
000ac830a0 6671807: (Escape Analysis) Add new ideal node to represent the state of a scalarized object at a safepoint 
Values of non-static fields of a scalarized object should be saved in debug info to reallocate the object during deoptimization.

Reviewed-by: never
 2008-03-13 16:06:34 -07:00
Vladimir Kozlov
277c3322f6 6667612: (Escape Analysis) disable loop cloning if it has a scalar replaceable allocation 
Cloning an allocation will not allow scalar replacement since memory operations could not be associated with one allocation.

Reviewed-by: rasbold
 2008-03-06 10:53:33 -08:00
J. Duke
8153779ad3 Initial load 2007-12-01 00:00:00 +00:00