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JDK-4719414 : Use x86 SSE and SSE2 instructions for FP computation

Details
Type:
Enhancement
Submit Date:
2002-07-23
Status:
Resolved
Updated Date:
2002-11-13
Project Name:
JDK
Resolved Date:
2002-11-13
Component:
hotspot
OS:
generic
Sub-Component:
compiler
CPU:
x86
Priority:
P4
Resolution:
Fixed
Affected Versions:
1.4.2
Fixed Versions:
1.4.2 (mantis)

Related Reports

Sub Tasks

Description
C2 makes particularlly bad FP code on Intel because we do not fully support the Intel FPU stack model.  We should use the Intel SSE registers instead.

                                    

Comments
CONVERTED DATA

BugTraq+ Release Management Values

COMMIT TO FIX:
mantis

FIXED IN:
mantis

INTEGRATED IN:
mantis
mantis-b05


                                     
2004-06-14
EVALUATION

Performance improvement of 70% on mepgaudio, 10% on mtrt, nearly 2x for SciMark codes on P4's.
                                     
2004-06-11



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