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100 Commits

Author SHA1 Message Date
Roland Westrelin
82f4aacb42 8259609: C2: optimize long range checks in long counted loops 
Co-authored-by: John R Rose <jrose@openjdk.org>
Reviewed-by: thartmann, jrose
 2021-10-26 15:53:37 +00:00
Roland Westrelin
e351de3bd6 8271272: C2: assert(!had_error) failed: bad dominance 
Reviewed-by: kvn, thartmann, chagedorn
 2021-07-30 07:28:04 +00:00
Roland Westrelin
c1304519b5 8269752: C2: assert(false) failed: Bad graph detected in build_loop_late 
Reviewed-by: chagedorn, kvn
 2021-07-19 07:31:28 +00:00
Roland Westrelin
df1364b508 8269575: C2: assert(false) failed: graph should be schedulable after JDK-8252372 
Reviewed-by: kvn, thartmann
 2021-07-06 07:03:08 +00:00
Jie Fu
7010dfdffa 8269517: compiler/loopopts/TestPartialPeelingSinkNodes.java crashes with -XX:+VerifyGraphEdges 
Reviewed-by: kvn, dlong
 2021-06-29 11:18:23 +00:00
Roland Westrelin
d4377afb99 8263303: C2 compilation fails with assert(found_sfpt) failed: no node in loop that's not input to safepoint 
Reviewed-by: chagedorn, kvn
 2021-06-10 06:56:04 +00:00
Roland Westrelin
9d305b9c06 8252372: Check if cloning is required to move loads out of loops in PhaseIdealLoop::split_if_with_blocks_post() 
Reviewed-by: thartmann, kvn
 2021-05-26 09:20:42 +00:00
Vladimir Kozlov
81d35e439d 8264063: Outer Safepoint poll load should not reference the head of inner strip mined loop. 
Reviewed-by: roland, vlivanov
 2021-04-08 15:04:38 +00:00
Roland Westrelin
d2a63f259e 8264360: Loop strip mining verification fails with "should be on the backedge" 
Reviewed-by: kvn, thartmann
 2021-03-30 07:58:49 +00:00
Roland Westrelin
33c94ffc81 8263376: CTW (Shenandoah): assert(mems <= 1) failed: No node right after call if multiple mem projections 
Reviewed-by: kvn, chagedorn
 2021-03-26 16:49:26 +00:00
Roland Westrelin
fd3a33a856 8263189: C2: assert(!had_error) failed: bad dominance 
Reviewed-by: kvn, thartmann
 2021-03-23 08:15:47 +00:00
Roland Westrelin
20297a1beb 8263577: C2: reachable nodes shouldn't have dead uses at the end of optimizations 
Reviewed-by: vlivanov, neliasso
 2021-03-16 08:20:52 +00:00
Roland Westrelin
8a2f58907c 8260637: Shenandoah: assert(_base == Tuple) failure during C2 compilation 
Reviewed-by: chagedorn, kvn
 2021-02-23 16:35:15 +00:00
Jesper Wilhelmsson
9b7a8f1982 Merge 2021-02-04 02:06:33 +00:00
Christian Hagedorn
aec037721c 8257498: Remove useless skeleton predicates 
Reviewed-by: roland, thartmann
 2021-02-01 09:39:31 +00:00
Vladimir Kozlov
1926765f5e 8253353: Crash in C2: guarantee(n != NULL) failed: No Node 
Co-authored-by: Fei Yang <fyang@openjdk.org>
Reviewed-by: vlivanov, neliasso
 2021-01-28 16:16:51 +00:00
Jesper Wilhelmsson
62ffe75b1f Merge 2021-01-28 03:38:32 +00:00
Vladimir Ivanov
e28e11119d 8260370: C2: LoopLimit node is not eliminated 
Reviewed-by: kvn, thartmann
 2021-01-27 10:29:59 +00:00
Jesper Wilhelmsson
a1a851b6db Merge 2021-01-19 05:43:27 +00:00
Roland Westrelin
d5ca3b3fd5 8259641: C2: assert(early->dominates(LCA)) failed: early is high enough 
Reviewed-by: chagedorn, thartmann
 2021-01-18 07:54:48 +00:00
Jesper Wilhelmsson
555641ede5 Merge 2021-01-07 21:17:35 +00:00
Roland Westrelin
6775113ce8 8258393: Shenandoah: "graph should be schedulable" assert failure 
Reviewed-by: rkennke, thartmann
 2021-01-05 13:06:54 +00:00
Xin Liu
30b9ff660f 8258653: CallJavaNode::_bci is not in use 
Reviewed-by: kvn, vlivanov
 2020-12-21 23:27:33 +00:00
Roland Westrelin
f5a582c287 8257575: C2: "failed: only phis" assert failure in loop strip mining verification 
Reviewed-by: thartmann, neliasso
 2020-12-07 09:38:22 +00:00
Roland Westrelin
86b65756cb 8257574: C2: "failed: parsing found no loops but there are some" assert failure 
Reviewed-by: thartmann, neliasso, chagedorn
 2020-12-04 12:01:53 +00:00
Roland Westrelin
3d460bd295 8256655: rework long counted loop handling 
Reviewed-by: kvn, thartmann, vlivanov
 2020-12-01 07:30:51 +00:00
Tobias Hartmann
f504f419d3 8256385: C2: fatal error: modified node is not on IGVN._worklist 
Reviewed-by: chagedorn, roland
 2020-11-18 11:53:25 +00:00
Tobias Hartmann
eb85b8da32 8255665: C2 should aggressively remove temporary hook nodes 
Reviewed-by: chagedorn, kvn
 2020-11-05 08:02:47 +00:00
Vladimir Ivanov
7e2640432b 8255000: C2: Unify IGVN processing when loop opts are over 
Reviewed-by: neliasso, iveresov, kvn
 2020-10-21 08:09:00 +00:00
Vladimir Ivanov
27230fae24 8255026: C2: Miscellaneous cleanups in Compile and PhaseIdealLoop code 
Reviewed-by: thartmann, neliasso, redestad
 2020-10-21 07:34:54 +00:00
Roland Westrelin
e76de18956 8223051: support loops with long (64b) trip counts 
Reviewed-by: vlivanov, thartmann, jrose
 2020-10-19 11:30:13 +00:00
Roland Westrelin
a6c23b7753 8253923: C2 doesn't always run loop opts for compilations that include loops 
Reviewed-by: neliasso, thartmann
 2020-10-12 10:55:22 +00:00
Roland Westrelin
76a5852776 8253756: C2 CompilerThread0 crash in Node::add_req(Node*) 
Reviewed-by: vlivanov, thartmann
 2020-10-08 08:39:40 +00:00
Roberto Castaneda Lozano
f3ea0d362f 8252583: Clean up unused phi-to-copy degradation mechanism 
Remove unused notion of 'PhiNode-to-copy degradation', where PhiNodes can be
degraded to copies by setting their RegionNode to NULL. Remove corresponding
PhiNode::is_copy() test, which always returned NULL (false). Assert that
PhiNodes have an associated RegionNode in PhiNode::Ideal().

Reviewed-by: thartmann, kvn
 2020-09-24 08:10:56 +00:00
Christian Hagedorn
8d30bb03ee 8249607: C2: assert(!had_error) failed: bad dominance 
Fix prevented igvn optimization in SplitIf for LoadNodes which resulted in dominanance errors with loop strip mining.

Reviewed-by: roland, kvn
 2020-08-31 12:10:25 +02:00
Roland Westrelin
c663323043 8252292: 8240795 may cause anti-dependence to be missed 
Reviewed-by: thartmann, kvn
 2020-08-24 11:29:40 +02:00
Mikael Vidstedt
1f5e21a16e Merge 2020-07-15 21:24:39 -07:00
Roland Westrelin
b67814941f 8229495: SIGILL in C2 generated OSR compilation 
Reviewed-by: kvn, chagedorn
 2020-07-01 17:28:49 +02:00
Christian Hagedorn
840867efa6 8247218: Add default constructor to VectorSet to use Thread::current()->resource_area() as arena by default 
Add a default construction to VectorSet and clean up uses of the old constructor.

Reviewed-by: kvn, thartmann
 2020-06-29 17:14:19 +02:00
Roland Westrelin
01cfedf2c9 8244086: Following 8241492, strip mined loop may run extra iterations 
Reviewed-by: mdoerr, thartmann
 2020-04-29 10:06:38 +02:00
Roland Westrelin
57388f807f 8244504: C2: refactor counted loop code in preparation for long counted loop 
Reviewed-by: jrose, thartmann
 2020-05-28 14:34:01 +02:00
Yong Zhou
dc54da232d 8244407: JVM crashes after transformation in C2 IdealLoopTree::split_fall_in 
Reviewed-by: thartmann, kvn
 2020-05-13 07:25:47 +08:00
Roland Westrelin
73ddea766a 8241492: Strip mining not working for test/hotspot/jtreg/compiler/c2/Test6850611.java 
Reviewed-by: mdoerr, thartmann, neliasso
 2020-03-24 17:56:15 +01:00
Roland Westrelin
c9faf88cb7 8240795: [REDO] 8238384 CTW: C2 compilation fails with "assert(store != load->find_exact_control(load->in(0))) failed: dependence cycle found" 
Reviewed-by: kvn, thartmann
 2020-03-13 16:32:51 +01:00
Roland Westrelin
43e0165eea 8240794: [BACKOUT] 8238384 CTW: C2 compilation fails with "assert(store != load->find_exact_control(load->in(0))) failed: dependence cycle found" 
Reviewed-by: thartmann
 2020-03-10 10:45:01 +01:00
Dongbo He
aa2be1141d 8240576: JVM crashes after transformation in C2 IdealLoopTree::merge_many_backedges 
Reviewed-by: kvn
 2020-03-09 22:31:12 +08:00
Roland Westrelin
86ad195099 8238384: CTW: C2 compilation fails with "assert(store != load->find_exact_control(load->in(0))) failed: dependence cycle found" 
Reviewed-by: vlivanov, thartmann
 2020-02-20 16:41:05 +01:00
Stefan Karlsson
1491340708 8240223: Use consistent predicate order in and with PhaseIdealLoop::find_predicate 
Reviewed-by: thartmann, neliasso, chagedorn
 2020-03-02 12:30:59 +01:00
Stefan Karlsson
ac60e4b98e 8240220: IdealLoopTree::dump_head predicate printing is broken 
Reviewed-by: thartmann, neliasso, chagedorn
 2020-03-02 12:30:57 +01:00
Roland Westrelin
52d46c314b 8238691: C2: turn subtype check into macro node 
Reviewed-by: vlivanov, thartmann
 2020-02-14 10:31:34 +01:00