47 Commits

Author	SHA1	Message	Date
Vladimir Kozlov	da65cc4532	7160161: Missed safepoint in non-Counted loop ... Do not remove safepoints during peeling optimization. Reviewed-by: twisti	2012-08-29 13:02:40 -07:00
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	61068411fa	7054211: No loop unrolling done in jdk7b144 for a test update() while loop ... Restore unrolling code for CaffeineMark. Reviewed-by: never	2011-09-07 12:58:42 -07:00
Vladimir Kozlov	52f678435a	7077439: Possible reference through NULL in loopPredicate.cpp:726 ... Use cl->is_valid_counted_loop() check. Reviewed-by: never	2011-08-10 14:06:57 -07:00
Vladimir Kozlov	df8d608ac7	7068051: SIGSEGV in PhaseIdealLoop::build_loop_late_post ... Removed predicate cloning from loop peeling optimization and from split fall-in paths. Reviewed-by: never	2011-07-29 09:16:29 -07:00
Vladimir Kozlov	b3505a88a4	7044738: Loop unroll optimization causes incorrect result ... Take into account memory dependencies when clonning nodes in clone_up_backedge_goo(). Reviewed-by: never	2011-06-28 15:24:29 -07:00
Vladimir Kozlov	d19a8f6e35	7052494: Eclipse test fails on JDK 7 b142 ... Keep 'ne' test in Counted loop when we can't guarantee during compilation that init < limit. Reviewed-by: never	2011-06-20 16:45:35 -07:00
Vladimir Kozlov	0aff6e35b8	7045693: java/util/EnumSet/EnumSetBash.java still failing intermittently ... New limit for unrolled loop should be set only for zero trip guard and loop iteration test. Reviewed-by: never	2011-05-21 11:44:31 -07:00
Vladimir Kozlov	0e10a5ad61	7044725: -XX:-UnrollLimitCheck -Xcomp : Exception: String index out of range: 29488 ... Fix problems in new RCE code. Reviewed-by: never	2011-05-16 14:21:16 -07:00
Vladimir Kozlov	70dfd21e87	7043552: regression after 7042327 ... Generate Opaque2 node only during first unroll. Reviewed-by: never	2011-05-10 12:57:21 -07:00
Vladimir Kozlov	8698030a91	7042327: assert(opaq->outcnt() == 1 && opaq->in(1) == limit) ... Separate limit by Opaque2 node when calculating new limit for unrolled loop. Reviewed-by: never	2011-05-05 21:06:14 -07:00
Vladimir Kozlov	1ac79543d0	5091921: Sign flip issues in loop optimizer ... Fix integer overflow problem in the code generated by loop optimizer. Reviewed-by: never	2011-05-04 13:12:42 -07:00
Vladimir Kozlov	2683d5390b	7039652: Performance regression after 7004547 changes ... Use unrolled_count() to limit unrolling and use the stride check only for initial stride value. Reviewed-by: never	2011-04-28 16:40:23 -07:00
John R Rose	41745904a3	Merge	2011-04-09 21:16:12 -07:00
Vladimir Kozlov	2096fd712c	7004555: Add new policy for one iteration loops ... Add new policy for one iteration loops (mostly formal pre- loops). Reviewed-by: never	2011-04-08 14:56:22 -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	3151573d39	7004547: regular loop unroll should not unroll more than max unrolling ... Take into account that after unroll conjoined heads and tails will fold. Reviewed-by: never	2011-04-04 19:02:36 -07:00
Tom Rodriguez	774ac503d0	7026957: assert(type2aelembytes(store->as_Mem()->memory_type(), true) == 1 << shift->in(2)->get_int()) failed ... Reviewed-by: kvn, jrose	2011-04-04 12:57:04 -07:00
Vladimir Kozlov	00eca5e982	7004535: Clone loop predicate during loop unswitch ... Clone loop predicate for clonned loops Reviewed-by: never	2011-04-02 10:54:15 -07:00
Vladimir Kozlov	0493606cdd	7032696: Fix for 7029152 broke VM ... StrIntrinsicNode::Ideal() should not optimize memory during Parse. Reviewed-by: jrose, never	2011-03-31 13:22:34 -07:00
Vladimir Kozlov	3ecb9f51df	7029152: Ideal nodes for String intrinsics miss memory edge optimization ... In Ideal() method of String intrinsics nodes look for TypeAryPtr::CHARS memory slice if memory is MergeMem. Do not unroll a loop with String intrinsics code. Reviewed-by: never	2011-03-30 12:08:49 -07:00
Tom Rodriguez	5387ee459e	7024475: loop doesn't terminate when compiled ... Reviewed-by: kvn	2011-03-27 00:00:14 -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
Tom Rodriguez	39d16839d3	6980792: Crash "exception happened outside interpreter, nmethods and vtable stubs (1)" ... Reviewed-by: kvn	2010-10-07 21:40:55 -07:00
Tom Rodriguez	2e4e2602d7	6984979: OptimizeFill misses some cases with an odd memory graph ... Reviewed-by: kvn	2010-09-15 20:25:37 -07:00
Tom Rodriguez	cf8bea660b	6982533: Crash in ~StubRoutines::jbyte_fill with AggressiveOpts enabled ... Reviewed-by: kvn	2010-09-07 11:31:27 -07:00
Tom Rodriguez	08d9e03b81	4809552: Optimize Arrays.fill(...) ... Reviewed-by: kvn	2010-08-27 17:33:49 -07:00
Vladimir Kozlov	448b83e288	6677629: PhaseIterGVN::subsume_node() should call hash_delete() and add_users_to_worklist() ... Use replace_node() method instead of subsume_node(). Reviewed-by: jrose, never	2010-06-28 14:54:39 -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 Rodriguez	dac78c30b9	6930043: C2: SIGSEGV in javasoft.sqe.tests.lang.arr017.arr01702.arr01702.loop_forw(II)I ... Reviewed-by: kvn	2010-03-17 16:40:25 -07:00
Vladimir Kozlov	667e7ff0c0	6930116: loop predication code does not handle If nodes with only one projection ... Add check for iff->outcnt() < 2. Reviewed-by: never	2010-02-25 22:58:43 -08:00
Tom Rodriguez	fbd5ca617d	6927049: assert(is_Loop(),"invalid node class") ... Reviewed-by: kvn	2010-02-19 13:06:11 -08:00
Changpeng Fang	815db4fcba	6894779: Loop Predication for Loop Optimizer in C2 ... Loop predication implementation Reviewed-by: never, kvn	2010-01-12 14:37:35 -08:00
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
Changpeng Fang	f981546f2d	6837146: Should perform unswitch before maximally unroll in loop transformation ... Move loop unswitch before maximally unroll Reviewed-by: never	2009-05-28 09:37:18 -07:00
Christian Thalinger	05d1de7727	6810672: Comment typos ... I have collected some typos I have found while looking at the code. Reviewed-by: kvn, never	2009-02-27 13:27:09 -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
Tom Rodriguez	043fde10e5	6743188: incomplete fix for 6700047 C2 failed in idom_no_update ... Reviewed-by: rasbold, kvn	2008-10-03 13:58:20 -07:00
Vladimir Kozlov	adce6fc49a	6667595: Set probability FAIR for pre-, post- loops and ALWAYS for main loop ... Fix loop's probability. Add optimizations to avoid spilling. Change InlineSmallCode to product flag. Reviewed-by: never	2008-10-02 08:37:44 -07:00
Tom Rodriguez	4b1e242299	6384206: Phis which are later unneeded are impairing our ability to inline based on static types ... Reviewed-by: rasbold, jrose	2008-09-17 12:59:52 -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	0a077d276e	6715633: when matching a memory node the adr_type should not change ... Verify the adr_type of a mach node was not changed Reviewed-by: rasbold, never	2008-06-20 11:10:05 -07:00
Coleen Phillimore	4a831d45f0	6420645: Create a vm that uses compressed oops for up to 32gb heapsizes ... Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold	2008-04-13 17:43:42 -04:00
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