JDK-8328934 : Assert that ABS input and output are legal
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 17,21,22,23
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2024-03-25
  • Updated: 2024-05-06
  • Resolved: 2024-04-30
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JDK 23
23 b21Fixed
Related Reports
Blocks :  
JDK-8330158 - C2: Loop strip mining uses ABS with min int
Relates :  
JDK-8324833 - Signed integer overflows in ABS
Relates :  
JDK-8324121 - SIGFPE in PhaseIdealLoop::extract_long_range_checks
Description
As suggested by [~dlong] here [1], we should assert that it has legal input (not MIN_INT) and output (non-negative value) in debug builds.

[1] https://github.com/openjdk/jdk/pull/18397/files#r1532629022
Comments
Changeset: cff841f1 Author: Aleksey Shipilev <shade@openjdk.org> Date: 2024-04-30 09:13:12 +0000 URL: https://git.openjdk.org/jdk/commit/cff841f1de41c911ec1b642b998c074e13e75554
30-04-2024
Current failures: compiler/c2/MinValueStrideCountedLoop.java (filed JDK-8330158)
12-04-2024
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/18751 Date: 2024-04-12 08:31:48 +0000
12-04-2024