JDK-8283789 : CompilerPhaseTypeHelper::to_bitmask should operate on uint64_t
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 19
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2022-03-28
  • Updated: 2022-03-28
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JDK 19
19Unresolved
Related Reports
Relates :  
JDK-8281505 - Add CompileCommand PrintIdealPhase
Description
JDK-8281505 added this helper method that operates on uint64_t masks, but it operates on ints. So it is subtly broken on 32-bit platforms, for example. SonarCloud complains about it: "The result of the left shift is undefined due to shifting by '32', which is greater or equal to the width of type 'int'"
Comments
ILW = incorrect result on 32-bit platform; limited to PrintIdealPhase feature?; no workaround = MLH = P4
28-03-2022
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk/pull/7994 Date: 2022-03-28 13:02:37 +0000
28-03-2022