JDK-8224558 : Fix replicateB encoding
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 9,10,11,12,13
  • Priority: P2
  • Status: Closed
  • Resolution: Fixed
  • CPU: x86
  • Submitted: 2019-05-21
  • Updated: 2019-10-04
  • Resolved: 2019-05-28
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JDK 11 JDK 13 JDK 14
11.0.5Fixed 13 b23Fixed 14Fixed
Related Reports
Relates :  
Description
The encoding for replicateB in x86.ad uses dst register as one of the source without initializing, when the source for the scalar value is memory. 
Comments
Fix-request: justification see above. Patch applies cleanly to jdk-updates/jdk11u-dev. Passes tier1 tests no regressions.
05-08-2019

ILW = Wrong result of vectorized code, with replicate operations (no known reproducer but assuming this showed up), disable AVX or compilation of affected method = HMM = P2
22-05-2019

Webrev: http://cr.openjdk.java.net/~vdeshpande/8224558/webrev.00/
21-05-2019