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Bug ID: JDK-6705887 Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
JDK-6705887 : Compressed Oops: generate x64 addressing and implicit null checks with narrow oops

Details
Type:
Enhancement
Submit Date:
2008-05-21
Status:
Resolved
Updated Date:
2010-06-26
Project Name:
JDK
Resolved Date:
2008-06-12
Component:
hotspot
OS:
solaris_10
Sub-Component:
compiler
CPU:
x86
Priority:
P4
Resolution:
Fixed
Affected Versions:
hs14
Fixed Versions:
hs13 (b02)

Related Reports
Backport:
Backport:
Relates:
Relates:

Sub Tasks

Description
Currently C2 generates explicit narrow oops NULL checks (after 6703890 fix)
and decode narrow oops to form an extended address for x64.

Generate addresses and implicit null checks with narrow oops to avoid decoding.

                                    

Comments
EVALUATION

See description.
                                     
2008-05-30



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