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 :  
JDK-6805427 - adlc compiler may generate incorrect machnode emission code
Description
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.
Comments
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
09-09-2006
SUGGESTED FIX Remove duplicated input edges during in Expand() method and modify opnd_array accordantly.
06-09-2006
EVALUATION See Description.
06-09-2006