JDK-8240220 : IdealLoopTree::dump_head predicate printing is broken
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 11,12,13,14,15
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2020-02-28
  • Updated: 2020-06-09
  • Resolved: 2020-03-02
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JDK 11 JDK 13 JDK 14 JDK 15
11.0.8-oracleFixed 13.0.4Fixed 14.0.2Fixed 15 b13Fixed
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Description
IdealLoopTree::dump_head looks for profiled predicate and normal predicate in the wrong order. It also uses the wrong node to skip forward to the next predicate set.
Comments
Fix request (13u) And to 13u as well: patch applies cleanly, tier1 passes.
09-06-2020

Fix Request (11u) Same reason as 14u, plus keeping codebases in sync (I see 11.0.8-oracle). Patch applies cleanly to 11u, passes tier1.
12-03-2020

Fix Request (JDK 14.0.2) This patch fixes diagnostic information and has already been backported to JDK 11u. The fix is low risk and applies cleanly to JDK 14.0.2. In addition to CI testing through all tiers in JDK 15 and 11u, additional testing will be executed in JDK 14.0.2 before pushing.
06-03-2020

URL: https://hg.openjdk.java.net/jdk/jdk/rev/41073408f25e User: stefank Date: 2020-03-02 11:31:25 +0000
02-03-2020

ILW = Missing details in C2's loop optimization output, with -XX:+TraceLoopOpts and related diagnostic flags, no workaround = MLH = P4
28-02-2020