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From "Alexey Varlamov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3963) [drlvm][jit] too aggressive code downgrade for non-SSE2 CPUs
Date Fri, 25 May 2007 04:26:16 GMT
[drlvm][jit] too aggressive code downgrade for non-SSE2 CPUs
------------------------------------------------------------

                 Key: HARMONY-3963
                 URL: https://issues.apache.org/jira/browse/HARMONY-3963
             Project: Harmony
          Issue Type: Wish
          Components: DRLVM
         Environment: Intel Pentium3, AthlonXP/MP
            Reporter: Alexey Varlamov
            Priority: Trivial


The Ia32i586InstsExpansion.cpp pass in Jitrino.OPT converts all SSE2/SSE instructions to corresponding
x87 instructions even if SSE support is available. This affects performance on legacy systems.

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