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dynarmic: Inline exclusive memory accesses

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Inlines implementation of exclusive instructions into JITted code,
improving performance of applications relying heavily on these
instructions.

We also fastmem these instructions for additional speed, with
support for appropriate recompilation on fastmem failure.

An unsafe optimization to disable the intercore global_monitor is also
provided, should one wish to rely solely on cmpxchg semantics for
safety.

See also: merryhime/dynarmic#664
This commit is contained in:
merry
2022-02-27 19:40:05 +00:00
parent 96d90be59f
commit 16784e5bb3
17 changed files with 114 additions and 8 deletions
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12
src/yuzu/configuration/configure_cpu.ui
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@ -150,6 +150,18 @@
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="cpuopt_unsafe_ignore_global_monitor">
<property name="toolTip">
<string>
&lt;div&gt;This option improves speed by relying only on the semantics of cmpxchg to ensure safety of exclusive access instructions. Please note this may result in deadlocks and other race conditions.&lt;/div&gt;
</string>
</property>
<property name="text">
<string>Ignore global monitor</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>