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47 Commits

Author SHA1 Message Date
Christian Hagedorn
f42e2c10c6 8347554: [BACKOUT] C2: implement optimization for series of Add of unique value 
Reviewed-by: kvn, thartmann
Backport-of: 062f2dcfe5b62cc3dd3c292eeebd7a7ac78f849a
 2025-01-14 15:20:53 +00:00
Christian Hagedorn
2eeaa57b19 8343944: C2: MinLNode::add_ring() computes _widen wrongly leading to an endless widening/compilation 
Reviewed-by: thartmann, rcastanedalo
 2024-11-13 08:39:17 +00:00
Kangcheng Xu
c30ad0124e 8325495: C2: implement optimization for series of Add of unique value 
Reviewed-by: chagedorn, roland
 2024-10-09 15:07:13 +00:00
Galder Zamarreño
c439c8c73c 8323429: Missing C2 optimization for FP min/max when both inputs are same 
Reviewed-by: roland, chagedorn
 2024-04-24 08:20:49 +00:00
Emanuel Peter
3ccb64c021 8318446: C2: optimize stores into primitive arrays by combining values into larger store 
Reviewed-by: kvn, thartmann
 2024-04-24 06:44:14 +00:00
Jasmine Karthikeyan
9f920b9bbf 8324655: Identify integer minimum and maximum patterns created with if statements 
Reviewed-by: epeter, qamai
 2024-03-25 06:23:11 +00:00
Magnus Ihse Bursie
09d4936657 8252136: Several methods in hotspot are missing "static" 
Reviewed-by: coleenp, stefank, kvn, kbarrett
 2024-02-14 16:29:58 +00:00
Zhiqiang Zang
1515bd7c9d 8322077: Add Ideal transformation: (~a) | (~b) => ~(a & b) 
Reviewed-by: thartmann, epeter
 2024-01-15 06:48:00 +00:00
Zhiqiang Zang
8569227473 8322589: Add Ideal transformation: (~a) & (~b) => ~(a | b) 
Reviewed-by: thartmann, epeter
 2024-01-10 07:31:56 +00:00
Roland Westrelin
b0d6c8472f 8316396: Endless loop in C2 compilation triggered by AddNode::IdealIL 
Reviewed-by: thartmann, kvn
 2023-10-04 12:06:31 +00:00
Quan Anh Mai
837cf85f7d 8312547: Max/Min nodes Value implementation could be improved 
Reviewed-by: thartmann, kvn
 2023-08-25 17:48:27 +00:00
Roberto Castañeda Lozano
3fa776d66a 8302673: [SuperWord] MaxReduction and MinReduction should vectorize for int 
Co-authored-by: Jatin Bhateja <jbhateja@openjdk.org>
Reviewed-by: epeter, kvn
 2023-06-05 07:08:33 +00:00
Roberto Castañeda Lozano
60f3b87d96 8309295: C2: MaxNode::signed_min() returns nullptr for int operands 
Reviewed-by: thartmann
 2023-06-02 06:34:15 +00:00
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