JDK-6467906 : Allow to specify the same parameter multiply times in match rule
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 7
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: solaris_9
  • CPU: sparc
  • Submitted: 2006-09-06
  • Updated: 2010-04-03
  • Resolved: 2006-11-14
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JDK 6 JDK 7 Other
6u4Fixed 7Fixed hs10Fixed
Related Reports
Relates :  
Matcher creates several input edges to the same node if  the correspondent 
parameter is specified multiply times in the match rule.
This creates problems in Register Allocator.

SUGGESTED FIX Webrev: http://analemma.sfbay.sun.com/net/prt-archiver.sfbay/data/archived_workspaces/main/c2_baseline/2006/20060908132731.kvn.6467906/workspace/webrevs/webrev-2006.09.08/index.html

SUGGESTED FIX Remove duplicated input edges during in Expand() method and modify opnd_array accordantly.

EVALUATION See Description.