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Bug ID: JDK-6708714 Optimize long LShift on 32-bits x86
JDK-6708714 : Optimize long LShift on 32-bits x86

Details
Type:
Enhancement
Submit Date:
2008-05-29
Status:
Resolved
Updated Date:
2010-04-03
Project Name:
JDK
Resolved Date:
2008-07-02
Component:
hotspot
OS:
solaris_10
Sub-Component:
compiler
CPU:
x86
Priority:
P4
Resolution:
Fixed
Affected Versions:
hs13
Fixed Versions:
hs14 (b01)

Related Reports
Backport:
Backport:

Sub Tasks

Description
For small (1-3 bits) left long shifts in 32-bits VM use sets of add+addc instructions
instead of shld+shl on new AMD cpus.

                                    

Comments
EVALUATION

For small (1-3 bits) left long shifts in 32-bits VM use sets of add+addc instructions
instead of shld+shl on new AMD cpus.
                                     
2008-06-20



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