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[TestOnly] Enable runtime async in Libraries partition + disable #122955

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[TestOnly] Enable runtime async in Libraries partition + disable #122955

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189c273
enable async in Libraries
VSadov Nov 1, 2025
bce4596
suppress warnings/errors for experimental features (in case we build …
VSadov Jan 6, 2026
697401d
set DOTNET_JitOptimizeAwait=0
VSadov Jan 7, 2026
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2 changes: 1 addition & 1 deletion src/coreclr/jit/jitconfigvalues.h
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Expand Up @@ -585,7 +585,7 @@ OPT_CONFIG_INTEGER(JitDoIfConversion, "JitDoIfConversion", 1)
OPT_CONFIG_INTEGER(JitDoOptimizeMaskConversions, "JitDoOptimizeMaskConversions", 1) // Perform optimization of mask
// conversions

OPT_CONFIG_INTEGER(JitOptimizeAwait, "JitOptimizeAwait", 1) // Perform optimization of Await intrinsics
OPT_CONFIG_INTEGER(JitOptimizeAwait, "JitOptimizeAwait", 0) // Perform optimization of Await intrinsics

RELEASE_CONFIG_INTEGER(JitEnableOptRepeat, "JitEnableOptRepeat", 1) // If zero, do not allow JitOptRepeat
RELEASE_CONFIG_METHODSET(JitOptRepeat, "JitOptRepeat") // Runs optimizer multiple times on specified methods
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6 changes: 6 additions & 0 deletions src/libraries/Directory.Build.props
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Expand Up @@ -99,4 +99,10 @@
<CoverageIncludeDirectory Include="shared\Microsoft.NETCore.App\$(ProductVersion)" />
</ItemGroup>

<PropertyGroup>
<Features Condition="'$(RuntimeFlavor)' != 'mono' and '$(TestBuildMode)' != 'nativeaot' and '$(TargetArchitecture)' != 'wasm'">$(Features);runtime-async=on</Features>
<NoWarn>$(NoWarn);SYSLIB5007</NoWarn>
<EnablePreviewFeatures>true</EnablePreviewFeatures>
</PropertyGroup>

</Project>
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