JDK-4719414 : Use x86 SSE and SSE2 instructions for FP computation
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 1.4.2
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: x86
  • Submitted: 2002-07-23
  • Updated: 2002-11-13
  • Resolved: 2002-11-13
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1.4.2 mantisFixed
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