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[x86/Linux] Use Portable SHIFT JIT Helpers #8448

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@parjong parjong commented Dec 5, 2016

This commit enables portable SHFIT JIT Helpers for x86/Linux.

This commit enables portable SHFIT JIT Helpers for x86/Linux.
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parjong commented Dec 5, 2016

\CC @seanshpark

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jkotas commented Dec 5, 2016

This won't work for x86. These JIT helpers have custom calling convention on x86. They have to be implemented in assembly on x86.

The alternative would be to change the JIT, but it is more complex change and it would introduce divergence between x86 Windows and x86 Unix codegen. We may end up with some divergence between x86 Windows and x86 Unix codegen, but it would be good idea to minimize it.

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parjong commented Dec 5, 2016

@jkotas Is it same for all the other JIT helpers?

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jkotas commented Dec 5, 2016

The custom calling convention applies only to the shift helpers that you are touching in this PR.

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parjong commented Dec 5, 2016

@jkotas Thank you for comment!

@parjong parjong closed this Dec 5, 2016
@parjong parjong deleted the fix/x86_portable_shift_helpers branch December 5, 2016 22:26
@karelz karelz modified the milestone: 2.0.0 Aug 28, 2017
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4 participants