[jira] Assigned: (HARMONY-3961) Allow Jitrino.dll to run on systems w/o SSE2

["Alexey Varlamov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-3961?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Varlamov reassigned HARMONY-3961:
----------------------------------------

    Assignee: Alexey Varlamov

> Allow Jitrino.dll to run on systems w/o SSE2
> --------------------------------------------
>
>                 Key: HARMONY-3961
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3961
>             Project: Harmony
>          Issue Type: New Feature
>          Components: DRLVM
>         Environment: Windows x86 (and probably x64)
>            Reporter: Chris Elford
>         Assigned To: Alexey Varlamov
>
> When running on Intel Pentium III or AMD Athlon that have MMX & SSE support but not SSE2 support, DRLVM errors out with an illegal instruction as it loads/starts jitrino.dll.
> > > 01365fb0 f20f100520553901 movsd xmm0,qword ptr
> > > [jitrino!JIT_gc_start+0xd5810 (01395520)]
> Discussion on dev list indicates that this may be a regression.
> Mikhail Fursov mentions simple fix of 
> Well, it looks like we need to remove this line from jitrino.dll build
> configuration for 32bit platform.
>                 <compilerarg value="/arch:SSE2" />
> This will be a bit more complex if we intend to validate that reduced used of SSE2 impacts performance.

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