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727 Commits

Author SHA1 Message Date
Tobias Hartmann
cb2eeb7d9a 8239142: C2's UseUniqueSubclasses optimization is broken for array accesses 
Avoid resetting the elemtype for array accesses.

Reviewed-by: vlivanov, eosterlund
 2020-02-18 08:28:02 +01:00
Christian Hagedorn
74bee68872 8239069: C2: SIGSEGV in IdealGraphPrinter::walk_nodes due to C->root() being NULL 
Fix NULL pointer dereference when trying to print the ideal graph when Compile::record_failure() is called twice.

Reviewed-by: neliasso, thartmann
 2020-02-17 12:29:24 +01:00
Christian Hagedorn
b369aefc79 8238765: PhaseCFG::schedule_pinned_nodes cannot handle precedence edges from unmatched CFG nodes correctly 
Fix PhaseCFG::schedule_pinned_nodes to correctly handle precedence edges from unmatched CFG nodes.

Reviewed-by: roland, neliasso, kvn
 2020-02-17 12:29:03 +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
Stefan Karlsson
e4b27a48a0 8183574: Unify the is_power_of_2 functions 
Reviewed-by: kbarrett, redestad
 2020-02-17 10:03:17 +01:00
Roland Westrelin
3bb62dc0d8 8236759: ShouldNotReachHere in PhaseIdealLoop::verify_strip_mined_scheduling 
Reviewed-by: thartmann, neliasso
 2020-01-13 10:00:30 +01:00
Christian Hagedorn
2ac2d590c2 8238811: C2: assert(i >= req() || i == 0 || is_Region() || is_Phi()) with -XX:+VerifyGraphEdges 
Fix -XX:+VerifyGraphEdges by additionally handling ArrayCopyNodes and UnlockNodes and add some basic flag testing.

Reviewed-by: roland, neliasso
 2020-02-13 15:08:08 +01:00
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
Christian Hagedorn
e2829b7b87 8237945: CTW: C2 compilation fails with assert(just_allocated_object(alloc_ctl) == ptr) failed: most recent allo 
Removing too strong assertion about array allocation in LibraryCallKit::tightly_coupled_allocation().

Reviewed-by: thartmann, neliasso
 2020-02-13 15:07:21 +01:00
Vladimir Ivanov
5e9dc46d21 8238683: C2: Remove Use24BitFP and Use24BitFPMode flags 
Reviewed-by: thartmann, neliasso
 2020-02-11 14:55:44 +03:00
Vladimir Ivanov
74e68b4092 8238690: C2: Handle vector shifts by constant and non-constant scalar uniformly 
Reviewed-by: thartmann, sviswanathan
 2020-02-11 14:55:43 +03:00
Vladimir Ivanov
590f5996c6 8136414: Large performance penalty declaring a method strictfp on strict-only platforms 
Reviewed-by: thartmann
 2020-02-11 14:55:39 +03:00
Roland Westrelin
1af059d4cb 8231291: C2: loop opts before EA should maximally unroll loops 
Reviewed-by: kvn, vlivanov
 2019-12-20 17:17:37 +01:00
Roland Westrelin
1745ae28b9 8237086: assert(is_MachReturn()) running CTW with fix for JDK-8231291 
Reviewed-by: kvn, vlivanov
 2020-01-14 14:58:17 +01:00
Nils Eliasson
b59f630249 8237581: Improve allocation expansion 
Reviewed-by: vlivanov, redestad
 2020-02-06 11:21:39 +01:00
Roland Westrelin
f2b7509d5a 8237951: CTW: C2 compilation fails with "malformed control flow" 
Reviewed-by: vlivanov, kvn
 2020-01-28 13:36:30 +01:00
Christian Hagedorn
b940e17c9e 8235332: TestInstanceCloneAsLoadsStores.java fails with -XX:+StressGCM 
Account for GC barriers when skipping a cloned ArrayCopyNode in ConnectionGraph::find_inst_mem()

Reviewed-by: roland, neliasso
 2020-01-31 09:32:00 +01:00
Stefan Karlsson
46423b0f70 8237637: Remove dubious type conversions from oop 
Reviewed-by: kbarrett, dholmes, mdoerr
 2020-01-24 09:27:07 +01:00
Jesper Wilhelmsson
b936939454 Merge 2020-01-20 18:05:07 +01:00
Roland Westrelin
995fae6d4b 8235584: UseProfiledLoopPredicate fails with assert(_phase->get_loop(c) == loop) failed: have to be in the same loop 
Reviewed-by: thartmann, neliasso
 2020-01-10 17:50:51 +01:00
Fei Yang
e3eb6dbd1f 8235762: JVM crash in SWPointer during C2 compilation 
Reviewed-by: thartmann, chagedorn, neliasso
 2020-01-09 19:12:16 +08:00
Jatin Bhateja
eccf39b295 8236443: Issues with specializing vector register type for phi operand with generic operands 
Fix special handling for operand resolution of vectorshift and shiftcount nodes. Fix for crash in the resolution algorithm due to non-machine type nodes.

Reviewed-by: vlivanov
 2020-01-14 10:55:11 +05:30
Patric Hedlin
9549cd2877 8235870: C2 crashes in IdealLoopTree::est_loop_flow_merge_sz() 
Reviewed-by: thartmann
 2020-01-13 11:26:44 +01:00
Tobias Hartmann
ea152dcd9b 8229855: C2 fails with assert(false) failed: bad AD file 
Strengthen the check to ensure that both control and data paths die consistently.

Reviewed-by: vlivanov, roland
 2020-01-13 13:37:01 +01:00
Christian Hagedorn
863f741611 8236140: assert(!VerifyHashTableKeys || _hash_lock == 0) failed: remove node from hash table before modifying it 
Add missing rehashing for modified node in InitializeNode::complete_stores().

Reviewed-by: neliasso, thartmann
 2020-01-09 16:14:14 +01:00
Roman Kennke
49b1cc8ee6 8236181: C2: Remove useless step_over_gc_barrier() in int->bool conversion 
Reviewed-by: thartmann, roland
 2020-01-07 13:45:10 +01:00
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
Sandhya Viswanathan
45e4c4c4dc 8236364: TEMP vector registers could be incorrectly assigned upper bank xmm registers after Generic Operands (JDK-8234391) 
Reviewed-by: kvn, vlivanov
 2019-12-24 16:49:37 +03:00
Tobias Hartmann
34b08ed2a5 8233164: C2 fails with assert(phase->C->get_alias_index(t) == phase->C->get_alias_index(t_adr)) failed: correct memory chain 
Use _src_type/_dest_type as address types for the loads and stores.

Reviewed-by: vlivanov, roland
 2019-12-23 09:44:35 +01:00
Goetz Lindenmaier
51abf67ce1 8235998: [c2] Memory leaks during tracing after '8224193: stringStream should not use Resource Area' 
Reviewed-by: dholmes, kvn
 2019-12-16 14:10:20 +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
Jatin Bhateja
31e075b019 8234392: C2: Extend Matcher::match_rule_supported_vector() with element type information 
Reviewed-by: vlivanov, sviswanathan, kvn, jrose
 2019-12-12 13:09:16 +03:00
Roman Kennke
3f7ecfb5b1 8235729: Shenandoah: Remove useless casting to non-constant 
Reviewed-by: roland
 2019-12-11 16:43:02 +01:00
Claes Redestad
91de8b6c91 8235551: BitMap::count_one_bits should use population_count 
Co-authored-by: Kim Barrett <kim.barrett@oracle.com>
Reviewed-by: kbarrett, neliasso
 2019-12-11 16:24:10 +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
Nils Eliasson
e1b94b1635 8235653: Clean-up BarrierSetC2 
Reviewed-by: redestad, rkennke, thartmann
 2019-12-11 14:08:20 +01:00
Tobias Hartmann
642d2ddcbc 8235452: Strip mined loop verification fails with assert(is_OuterStripMinedLoop()) failed: invalid node class 
Do not try to verify strip mining if the strip mined loop is malformed.

Reviewed-by: roland, vlivanov
 2019-12-11 10:42:44 +01:00
Fei Yang
a86e196559 8235762: JVM crash in SWPointer during C2 compilation 
Reviewed-by: thartmann, chagedorn, neliasso
 2020-01-09 19:12:16 +08:00
Jesper Wilhelmsson
d34f561de0 Merge 2020-01-15 20:41:46 +01:00
Roland Westrelin
8d2e11397a 8237007: Shenandoah: assert(_base == Tuple) failure during C2 compilation 
Reviewed-by: thartmann, rkennke
 2020-01-09 17:26:26 +01:00
Tobias Hartmann
f243173a18 8236721: C2 should better optimize not-equal integer comparisons 
Narrow the type if an integer value is found to be unequal to it's lower/upper boundary.

Reviewed-by: roland, neliasso
 2020-01-15 08:44:53 +01:00
Jatin Bhateja
2b9fef7d7b 8236443: Issues with specializing vector register type for phi operand with generic operands 
Fix special handling for operand resolution of vectorshift and shiftcount nodes. Fix for crash in the resolution algorithm due to non-machine type nodes.

Reviewed-by: vlivanov
 2020-01-14 09:51:10 +05:30
Jesper Wilhelmsson
913b8702d1 Merge 2020-01-13 15:40:09 +01:00
Jesper Wilhelmsson
943b87ddde Merge 2020-01-09 20:21:53 +01:00
Jesper Wilhelmsson
257a1bb854 Merge 2020-01-08 16:03:32 +01:00
Ioi Lam
584db9818a 8236625: Remove writeable macro from JVM flags declaration 
Reviewed-by: coleenp, hseigel, gziemski
 2020-01-07 18:56:18 -08:00
Roman Kennke
ffe68bcb24 8236161: C2: Remove useless step_over_gc_barrier() in int->bool conversion 
Reviewed-by: thartmann, roland
 2020-01-07 13:45:10 +01:00
Smita Kamath
995da6eb2a 8167065: Add intrinsic support for double precision shifting on x86_64 
Reviewed-by: kvn
 2019-12-23 14:42:21 -08:00
Roland Westrelin
9d40ab91db 8234350: assert(mode == ControlAroundStripMined && (use == sfpt || !use->is_reachable_from_root())) failed: missed a node 
Reviewed-by: thartmann, mdoerr
 2019-12-09 15:37:04 +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