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139 Commits

Author SHA1 Message Date
Tobias Hartmann
fe407cf1b6 8260420: C2 compilation fails with assert(found_sfpt) failed: no node in loop that's not input to safepoint 
Reviewed-by: kvn, roland, chagedorn
 2021-02-02 07:23:55 +00:00
Igor Ignatyev
8ffdbcebad 8260608: add a regression test for 8260370 
Reviewed-by: kvn
 2021-01-29 04:04:23 +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
Christian Hagedorn
c5ab7c3214 8260284: C2: assert(_base == Int) failed: Not an Int 
Reviewed-by: thartmann, kvn
 2021-01-25 17:09:52 +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
Christian Hagedorn
c1fb521694 8259227: C2 crashes with SIGFPE due to a division that floats above its zero check 
Reviewed-by: kvn, thartmann
 2021-01-07 15:02:45 +00:00
Christian Hagedorn
04a1e5b75b 8258505: [TESTBUG] TestDivZeroWithSplitIf.java fails due to missing UnlockDiagnosticVMOptions 
Reviewed-by: thartmann, kvn, dcubed
 2020-12-17 08:09:19 +00:00
Christian Hagedorn
ce36aeaac3 8257822: C2 crashes with SIGFPE due to a division that floats above its zero check 
Reviewed-by: kvn, thartmann
 2020-12-15 15:14:34 +00:00
Christian Hagedorn
1d0adbb812 8253644: C2: assert(skeleton_predicate_has_opaque(iff)) failed: unexpected 
Reviewed-by: roland, kvn
 2020-12-08 08:48:58 +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
Dong Bo
b0b9dd27b8 8256318: AArch64: Add support for floating-point absolute difference 
Reviewed-by: aph
 2020-11-18 10:14:20 +00:00
Roland Westrelin
ea576ddbd4 8254887: C2: assert(cl->trip_count() > 0) failed: peeling a fully unrolled loop 
Reviewed-by: chagedorn, thartmann
 2020-11-13 08:19:33 +00:00
Tobias Hartmann
7c0d417027 8251535: Partial peeling at unsigned test adds incorrect loop exit check 
Reviewed-by: chagedorn, neliasso, kvn
 2020-10-16 06:25:33 +00:00
Roberto Castañeda Lozano
05459df0c7 8253765: C2: Control randomization in StressLCM and StressGCM 
Use the compilation-local seed in 'StressLCM' and 'StressGCM' rather than the
global one. As a consequence, these options use by default a fresh seed in every
compilation, unless 'StressSeed=N' is specified, in which case they behave
deterministically. Annotate tests that use 'StressLCM' and 'StressGCM' with the
'stress' and 'randomness' keys to reflect this change in default behavior.

Reviewed-by: kvn, thartmann
 2020-10-12 11:40:50 +00:00
Xin Liu
ea5a2b15a0 8251464: make Node::dump(int depth) support indent 
Reviewed-by: thartmann
 2020-10-02 13:45:29 +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
Christian Hagedorn
31368cd1f0 8249602: C2: assert(cnt == _outcnt) failed: no insertions allowed 
Use DUIterator instead of DUIterator_Fast due to legit insertions.

Reviewed-by: kvn, thartmann
 2020-07-28 16:05:30 +02:00
Christian Hagedorn
417e8e449d 8248552: C2 crashes with SIGFPE due to division by zero 
Bail out in PhaseIdealLoop:split_thru_phi when trying to split a Div or ModNode iv phi whose zero check was removed but could potentially still be zero based on type information.

Reviewed-by: kvn, thartmann
 2020-07-27 11:03:17 +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
Igor Ignatyev
04280a0d05 8249000: vm.gc.X should take selected JIT into account 
Reviewed-by: kvn
 2020-07-10 11:52:35 -07:00
Mikael Vidstedt
09510a15a1 Merge 2020-07-10 23:12:29 -07:00
Christian Hagedorn
b02e4d4aba 8248596: [TESTBUG] compiler/loopopts/PartialPeelingUnswitch.java times out with Graal enabled 
Change C2 specific test to be executed only with server compiler.

Reviewed-by: roland, kvn, thartmann
 2020-07-06 09:16:58 +02:00
Christian Hagedorn
08df6a1f15 8246203: Segmentation fault in verification due to stack overflow with -XX:+VerifyIterativeGVN 
Replace the recursive verification algorithm with an iterative one to avoid a stack overflow for large graphs.

Reviewed-by: kvn, thartmann
 2020-06-15 09:50:11 +02:00
Roland Westrelin
9c99008aff 8245714: "Bad graph detected in build_loop_late" when loads are pinned on loop limit check uncommon branch 
Reviewed-by: thartmann
 2020-05-28 13:21:54 +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
f0b37f161b 8239569: PublicMethodsTest.java failed due to NPE in java.base/java.nio.file.FileSystems.getFileSystem(FileSystems.java:230) 
Reviewed-by: thartmann, kvn
 2020-04-23 15:54:08 +02:00
Igor Ignatyev
70e632d5ec 8243935: remove copying of s.h.WB$WhiteBoxPermission in hotspot tests 
Reviewed-by: dholmes, stefank
 2020-04-28 19:57:02 -07:00
Igor Ignatyev
7c351405c4 8242310: use reproducible random in hotspot compiler tests 
Reviewed-by: kvn, thartmann
 2020-04-08 22:58:42 -07:00
Jie Fu
3487361a39 8242379: [TESTBUG] compiler/loopopts/TestLoopUnswitchingLostCastDependency.java fails with release VMs 
Reviewed-by: roland, kvn
 2020-04-09 09:20:18 +08:00
Roland Westrelin
6405d75070 8241900: Loop unswitching may cause dependence on null check to be lost 
Reviewed-by: thartmann, kvn
 2020-04-02 15:03:27 +02:00
Per Lidén
2e4783411e 8240745: Implementation: JEP 377: ZGC: A Scalable Low-Latency Garbage Collector (Production) 
Reviewed-by: stefank, eosterlund
 2020-04-03 23:40:33 +02:00
Christian Hagedorn
c01e986cc9 8237859: C2: Crash when loads float above range check 
Fix control edges of predicates to data nodes when creating pre/main/post loops.

Reviewed-by: neliasso, thartmann, roland
 2020-03-25 14:41:52 +01:00
Sandhya Viswanathan
398ce2948c 8240248: Extend superword reduction optimizations for x86 
Add support for and, or, xor reduction

Co-authored-by: Shravya Rukmannagari <shravya.rukmannagari@intel.com>
Reviewed-by: vlivanov, thartmann
 2020-03-23 10:26:40 -07:00
Christian Hagedorn
a51dd58f38 8240227: Loop predicates should be copied to unswitched loops 
Copy loop range check predicates to unswitched loops and update their control edges.

Reviewed-by: kvn, neliasso, thartmann, roland
 2020-03-19 10:15:28 +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
Qi Feng
d1818942b0 8240286: [TESTBUG] Test command error in hotspot/jtreg/compiler/loopopts/superword/SumRedAbsNeg_Float.java 
Reviewed-by: kvn, thartmann
 2020-03-05 14:51:41 +08:00
Christian Hagedorn
d7b122ed69 8238438: SuperWord::co_locate_pack picks memory state of first instead of last load 
Fix selection of first and last memory state in SuperWord::co_locate_pack

Reviewed-by: thartmann, kvn
 2020-03-02 10:23:08 +01:00
Pengfei Li
934db29ac5 8239549: AArch64: Backend support for MulAddVS2VI node 
Reviewed-by: aph
 2020-02-26 09:33:29 +08:00
Christian Hagedorn
3ea92e735b 8238756: C2: assert(((n) == __null || !VerifyIterativeGVN || !((n)->is_dead()))) failed: can not use dead node 
Fix -XX:+VerifyIterativeGVN due to a dead node and add some basic flag testing.

Reviewed-by: roland, neliasso
 2020-02-13 15:07:45 +01:00
Fairoz Matte
a4b3e781fe 8236701: [TESTBUG] compiler/loopopts/superword/Vec_MulAddS2I.java uses wrong flag -XX:-SuperWord 
Reviewed-by: iklam, thartmann
 2020-01-16 17:37:09 -08:00
Fei Yang
a86e196559 8235762: JVM crash in SWPointer during C2 compilation 
Reviewed-by: thartmann, chagedorn, neliasso
 2020-01-09 19:12:16 +08:00
Christian Hagedorn
3e9a17c53e 8235984: C2: assert(out->in(PhiNode::Region) == head || out->in(PhiNode::Region) == slow_head) failed: phi must be either part of the slow or the fast loop 
Bailout from loop unswitching if loop predicates have a control dependency to partially peeled statements.

Reviewed-by: neliasso, thartmann
 2020-01-07 17:06:10 +01:00
Jatin Bhateja
079db54d51 8230185: assert(is_Loop()) failed: invalid node class 
Adding missing check for a counted loop.

Reviewed-by: kvn, thartmann
 2019-12-18 10:04:53 +01:00
Christian Hagedorn
ba94936c80 8233033: C2 produces wrong result while unswitching a loop due to lost control dependencies 
Adding missing control dependencies when cloning loop predicates at loop unswitching.

Reviewed-by: roland, vlivanov, thartmann
 2019-12-11 14:33:32 +01:00
Christian Hagedorn
2ee7b9d3a0 8233032: assert(in_bb(n)) failed: must be 
Find first and last memory state of a load pack without relying on bb indices.

Co-authored-by: Roland Westrelin <rwestrel@redhat.com>
Reviewed-by: roland, kvn, thartmann
 2019-12-10 09:28:38 +01:00
Christian Hagedorn
fd8832f726 8229994: assert(false) failed: Bad graph detected in get_early_ctrl_for_expensive 
Fixes wrong idom information set in loop peeling when a loop strip mined loop is involved.

Reviewed-by: vlivanov, thartmann
 2019-12-06 10:00:16 +01:00
Christoph Göttschkes
9c4adc66c7 8234906: [TESTBUG] TestDivZeroCheckControl fails for client VMs due to Unrecognized VM option LoopUnrollLimit 
Reviewed-by: kvn
 2019-12-04 10:38:54 +01:00
Christoph Göttschkes
a4a351caad 8234807: [TESTBUG] LoopRotateBadNodeBudget fails for client VMs due to Unrecognized VM option PartialPeelNewPhiDelta 
Reviewed-by: kvn
 2019-11-27 10:13:41 +01:00
Tobias Hartmann
1833584f92 8233529: loopTransform.cpp:2984: Error: assert(p_f->Opcode() == Op_IfFalse) failed 
Strengthened asserts in locate_pre_from_main() and added a check for is_main_no_pre_loop().

Reviewed-by: kvn, vlivanov
 2019-11-12 10:16:04 +01:00