dynarmic: Inline exclusive memory accesses

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

2 files changed, 4 insertions, 0 deletions

diff --git a/src/common/settings.cpp b/src/common/settings.cpp
index 2810cec15..877e0faa4 100644
--- a/src/common/settings.cpp
+++ b/src/common/settings.cpp
@@ -176,6 +176,7 @@ void RestoreGlobalState(bool is_powered_on) {
     values.cpuopt_unsafe_ignore_standard_fpcr.SetGlobal(true);
     values.cpuopt_unsafe_inaccurate_nan.SetGlobal(true);
     values.cpuopt_unsafe_fastmem_check.SetGlobal(true);
+    values.cpuopt_unsafe_ignore_global_monitor.SetGlobal(true);
 
     // Renderer
     values.renderer_backend.SetGlobal(true);
diff --git a/src/common/settings.h b/src/common/settings.h
index d06b23a14..a37d83fb3 100644
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -484,12 +484,15 @@ struct Values {
     BasicSetting<bool> cpuopt_misc_ir{true, "cpuopt_misc_ir"};
     BasicSetting<bool> cpuopt_reduce_misalign_checks{true, "cpuopt_reduce_misalign_checks"};
     BasicSetting<bool> cpuopt_fastmem{true, "cpuopt_fastmem"};
+    BasicSetting<bool> cpuopt_fastmem_exclusives{true, "cpuopt_fastmem_exclusives"};
+    BasicSetting<bool> cpuopt_recompile_exclusives{true, "cpuopt_recompile_exclusives"};
 
     Setting<bool> cpuopt_unsafe_unfuse_fma{true, "cpuopt_unsafe_unfuse_fma"};
     Setting<bool> cpuopt_unsafe_reduce_fp_error{true, "cpuopt_unsafe_reduce_fp_error"};
     Setting<bool> cpuopt_unsafe_ignore_standard_fpcr{true, "cpuopt_unsafe_ignore_standard_fpcr"};
     Setting<bool> cpuopt_unsafe_inaccurate_nan{true, "cpuopt_unsafe_inaccurate_nan"};
     Setting<bool> cpuopt_unsafe_fastmem_check{true, "cpuopt_unsafe_fastmem_check"};
+    Setting<bool> cpuopt_unsafe_ignore_global_monitor{true, "cpuopt_unsafe_ignore_global_monitor"};
 
     // Renderer
     RangedSetting<RendererBackend> renderer_backend{