JDK-6805427 : adlc compiler may generate incorrect machnode emission code
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs14
  • Priority: P2
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2009-02-13
  • Updated: 2010-04-03
  • Resolved: 2009-03-18
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JDK 6 JDK 7 Other
6u18Fixed 7Fixed hs15Fixed
Related Reports
Relates :  
JDK-6467906 - Allow to specify the same parameter multiply times in match rule
Description
Memory allocation bug in adlc may cause 3rd and later KILLed 'instruct'
operands bound to a specific register being re-bound by the reg allocator to a
different register, thus causing incorrcet code generation.
Comments
EVALUATION The fix is simply to compute a correct worst case size for the array based on the number of components.
26-02-2009
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/0ad1cb407fa1
25-02-2009