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34 Commits

Author SHA1 Message Date
Jasmine Karthikeyan
fb0b1f0c23 8051725: Improve expansion of Conv2B nodes in the middle-end 
Reviewed-by: thartmann, qamai, sviswanathan
 2023-05-30 14:11:12 +00:00
Emanuel Peter
1f1f604071 8302670: use-after-free related to PhaseIterGVN interaction with Unique_Node_List and Node_Stack 
Co-authored-by: Justin King <jcking@openjdk.org>
Reviewed-by: thartmann, chagedorn, jcking
 2023-05-30 07:14:50 +00:00
Emanuel Peter
cc894d849a 8303466: C2: failed: malformed control flow. Limit type made precise with MaxL/MinL 
Reviewed-by: roland, kvn, chagedorn, thartmann
 2023-04-26 05:42:26 +00:00
Johan Sjölen
5726d31e56 8301074: Replace NULL with nullptr in share/opto/ 
Reviewed-by: kvn, jwilhelm
 2023-03-09 20:28:26 +00:00
Zhiqiang Zang
5dd851d872 8281453: New optimization: convert ~x into -1-x when ~x is used in an arithmetic expression 
Reviewed-by: kvn
 2022-10-06 22:15:20 +00:00
Emanuel Peter
83abfa5d82 8255670: Improve C2's detection of modified nodes 
Reviewed-by: kvn, thartmann, roland
 2022-09-22 07:44:50 +00:00
Bhavana Kilambi
6b2184e8d1 8290248: Implement MaxINode::Ideal transformation 
Reviewed-by: kvn, thartmann
 2022-08-05 01:51:34 +00:00
Zhiqiang Zang
c7755b815d 8283094: Add Ideal transformation: x + (con - y) -> (x - y) + con 
Reviewed-by: kvn, thartmann
 2022-04-13 16:01:10 +00:00
Zhiqiang Zang
0bf95a1a73 8279607: Existing optimization "~x+1" -> "-x" can be generalized to "~x+c" -> "(c-1)-x". 
Reviewed-by: thartmann, kvn
 2022-01-20 07:38:04 +00:00
Zhiqiang Zang
f6fbb5a80c 8278471: Remove unreached rules in AddNode::IdealIL 
Reviewed-by: jiefu, kvn
 2021-12-16 03:57:29 +00:00
Roland Westrelin
5dcdee4bcd 8262341: Refine identical code in AddI/LNode. 
Reviewed-by: thartmann, eliu
 2021-12-08 07:55:12 +00:00
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
Yi Yang
a73c06de2a 8273021: C2: Improve Add and Xor ideal optimizations 
Co-authored-by: yulei <lei.yul@alibaba-inc.com>
Reviewed-by: thartmann, kvn
 2021-09-13 02:10:45 +00:00
Zhengyu Gu
746fe5dc68 8270366: C2: Add associative rule to add/sub node 
Reviewed-by: kvn, adinn
 2021-07-15 16:40:30 +00:00
David Holmes
cb7128b58e 8266950: Remove vestigial support for non-strict floating-point execution 
Co-authored-by: Vladimir Ivanov <vlivanov@openjdk.org>
Reviewed-by: vlivanov, kvn
 2021-06-01 22:04:02 +00:00
Nils Eliasson
4ba761381c 8267332: xor value should handle bounded values 
Reviewed-by: thartmann, redestad
 2021-05-21 14:06:18 +00:00
Wang Huang
599d07c0db 8263006: Add optimization for Max(*)Node and Min(*)Node 
Co-authored-by: Wang Huang <whuang@openjdk.org>
Co-authored-by: Wu Yan <wuyan34@huawei.com>
Reviewed-by: kvn
 2021-05-14 17:16:28 +00:00
Cesar
67cb22af58 8266601: Fix bugs in AddLNode::Ideal transformations 
Reviewed-by: kvn, vlivanov, thartmann
 2021-05-11 09:28:37 +00:00
Roland Westrelin
d1baed677e 8263672: fatal error: no reachable node should have no use 
Reviewed-by: vlivanov, thartmann
 2021-03-17 08:52:14 +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
Eric Liu
23ee60d1b7 8261008: Optimize Xor 
Reviewed-by: thartmann, kvn
 2021-03-06 08:52:35 +00:00
Eric Liu
382e38dd24 8256438: AArch64: Implement match rules with ROR shift register value 
Reviewed-by: aph, roland
 2021-02-24 09:49:53 +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
1c4c99eae2 8256823: C2 compilation fails with "assert(isShiftCount(imm8 >> 1)) failed: illegal shift count" 
Reviewed-by: vlivanov, kvn, chagedorn
 2020-11-24 16:52:13 +00:00
Claes Redestad
f55ae9595e 8256858: C2: Devirtualize PhaseIterGVN-specific methods 
Reviewed-by: kvn, thartmann
 2020-11-24 14:33:47 +00:00
Tobias Hartmann
15805741f1 8255672: Replace PhaseTransform::eqv by pointer equality check 
Reviewed-by: chagedorn, redestad, kvn
 2020-11-03 07:17:58 +00:00
Tobias Hartmann
cfb02d4854 8250861: Crash in MinINode::Ideal(PhaseGVN*, bool) 
Added missing NULL checks.

Reviewed-by: kvn, chagedorn
 2020-10-20 14:58:40 -07:00
Tobias Hartmann
7c05f32bc9 8244924: Additional fix for JDK-8241119 
Reviewed-by: kvn, vlivanov, rhalade, ahgross
 2020-10-20 14:58:38 -07:00
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
Vladimir Kozlov
1438ce097f 8252188: Crash in OrINode::Ideal(PhaseGVN*, bool)+0x8b9 
Reviewed-by: vlivanov, thartmann, jbhateja
 2020-09-19 16:06:35 +00:00
Jatin Bhateja
3ed56830b4 8248830: C2: Optimize Rotate API on x86 
Improved existing scalar rotate operations, added support for vector rotate operations using new AVX512 instructions.

Reviewed-by: vlivanov, kvn
 2020-08-09 02:03:09 +05:30
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
Jamsheed Mohammed C M
259a0b4a7b 8226627: assert(t->singleton()) failed: must be a constant 
Implemented constant folding for MaxFD, MinFD.

Reviewed-by: thartmann, bsrbnd, pli
 2019-07-05 00:24:54 -07:00
Erik Joelsson
3789983e89 8187443: Forest Consolidation: Move files to unified layout 
Reviewed-by: darcy, ihse
 2017-09-12 19:03:39 +02:00