Commit Graph

12 Commits

Author SHA1 Message Date
Tobias Hartmann
2d00538d92 8202949: C2: assert(false) failed: Bad graph detected in build_loop_late
Fixed trip count computation for counted loop with negative stride to prevent over-unrolling.

Reviewed-by: roland
2018-05-25 09:05:42 +02:00
Roland Westrelin
98db6d11f3 8193130: Bad graph when unrolled loop bounds conflicts with range checks
Reviewed-by: kvn, thartmann
2018-03-22 20:21:19 -07:00
Roland Westrelin
4f8c5b6949 8197563: assert(is_Loop()) crash in PhaseIdealLoop::try_move_store_before_loop()
Don't move store out of the loop if head is not a LoopNode.

Reviewed-by: kvn, thartmann
2018-02-13 16:57:01 +01:00
Roland Westrelin
d244b3ccd1 8196296: Lucene test crashes C2 compilation
Prevent merging of back to back ifs if one is a counted loop end.

Reviewed-by: kvn, thartmann
2018-01-30 09:08:44 +01:00
Roland Westrelin
29bab311ab 8192908: -XX:+UseCountedLoopSafepoints alone doesn't disable strip mining with G1
-XX:+UseCountedLoopSafepoints should disable loop strip mining.

Reviewed-by: kvn, thartmann
2017-12-07 15:52:46 +01:00
Roland Westrelin
386e258e20 8186027: C2: loop strip mining
Reviewed-by: kvn, neliasso
2017-11-28 11:59:16 +01:00
Roland Westrelin
1c25161036 8191153: assert(u_ctrl != blk1 && u_ctrl != blk2) failed: won't converge
Relax assert

Reviewed-by: kvn
2017-11-27 10:44:19 -08:00
Roland Westrelin
002aff0a75 8190375: Java Crash in JavaBug.formatPos(I)Ljava/lang/String
Skip the logic that set the value of the Phi iv if the exit condition is "not equal"

Reviewed-by: thartmann, mdoerr
2017-11-13 14:53:28 -05:00
Tobias Hartmann
34622112b6 8189067: SuperWord optimization crashes with "assert(out == prev || prev == __null) failed: no branches off of store slice"
Only move the store if the LCA of all users is outside of the loop. Re-enable UseSubwordForMaxVector.

Reviewed-by: kvn, roland
2017-10-13 14:02:01 +02:00
Roland Westrelin
844e594fec 8187822: C2 conditonal move optimization might create broken graph
Reviewed-by: kvn
2017-09-27 16:17:47 +02:00
Ekaterina Pavlova
853f26ed15 8185134: [Graal] Introduce vm.graal predicate and tag tests which are not applicable for Graal
Reviewed-by: kvn, dnsimon
2017-10-02 14:31:34 -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