United StatesChange Country, Oracle Worldwide Web Sites Communities I am a... I want to...
Bug ID: 6467906 Allow to specify the same parameter multiply times in match rule
6467906 : Allow to specify the same parameter multiply times in match rule

Details
Type:
Bug
Submit Date:
2006-09-06
Status:
Resolved
Updated Date:
2010-04-03
Project Name:
JDK
Resolved Date:
2006-11-14
Component:
hotspot
OS:
solaris_9
Sub-Component:
compiler
CPU:
sparc
Priority:
P4
Resolution:
Fixed
Affected Versions:
7
Fixed Versions:
hs10

Related Reports
Backport:
JDK-2171823 - Allow to specify the same parameter multiply times in match rule
Backport:
JDK-2176755 - Allow to specify the same parameter multiply times in match rule
Relates:
JDK-6805427 - adlc compiler may generate incorrect machnode emission code

Sub Tasks

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
2006-09-09 
SUGGESTED FIX

Remove duplicated input edges during in Expand() method
and modify opnd_array accordantly.
2006-09-06 
EVALUATION

See Description.
2006-09-06


Hardware and Software, Engineered to Work Together