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[release/6.0] Don't regress SkipLocalsInit optimization on < 6.0 .NETCoreApp assets #57868

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merged 4 commits into from
Aug 23, 2021
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[release/6.0] Don't regress SkipLocalsInit optimization on < 6.0 .NETCoreApp assets #57868

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1c5d6d6
Don't regress SkipLocalsInit optimization on net5.0 assets
ViktorHofer Aug 20, 2021
907ade0
Update Directory.Build.targets
ViktorHofer Aug 20, 2021
b5bd216
Update Directory.Build.targets
ViktorHofer Aug 23, 2021
a60e32e
Update SkipLocalsInitAttribute.cs
ViktorHofer Aug 23, 2021
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5 changes: 4 additions & 1 deletion src/libraries/Directory.Build.targets
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Original file line number Diff line number Diff line change
Expand Up @@ -218,8 +218,9 @@
</When>
</Choose>

<!-- Enable the SkipLocalsInit feature for any source project that is part of the .NETCoreApp shared framework. -->
<PropertyGroup>
<SkipLocalsInit Condition="'$(SkipLocalsInit)' == '' and '$(MSBuildProjectExtension)' == '.csproj' and '$(IsNETCoreAppSrc)' == 'true' and ($([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', '$(NetCoreAppCurrent)')))">true</SkipLocalsInit>
<SkipLocalsInit Condition="'$(SkipLocalsInit)' == '' and '$(MSBuildProjectExtension)' == '.csproj' and '$(IsNETCoreAppSrc)' == 'true' and '$(TargetFrameworkIdentifier)' == '.NETCoreApp'">true</SkipLocalsInit>
</PropertyGroup>

<!--Instructs compiler not to emit .locals init, using SkipLocalsInitAttribute.-->
Expand All @@ -228,9 +229,11 @@
<PropertyGroup >
<!-- This is needed to use the SkipLocalsInitAttribute. -->
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<IncludeSkipLocalsInitAttribute Condition="'$(IncludeSkipLocalsInitAttribute)' == '' and $([MSBuild]::VersionLessThan($(TargetFrameworkVersion), '5.0'))">true</IncludeSkipLocalsInitAttribute>
</PropertyGroup>

<ItemGroup>
<Compile Include="$(CoreLibSharedDir)System\Runtime\CompilerServices\SkipLocalsInitAttribute.cs" Link="System\Runtime\CompilerServices\SkipLocalsInitAttribute.cs" Condition="'$(IncludeSkipLocalsInitAttribute)' == 'true'" />
<Compile Include="$(CommonPath)SkipLocalsInit.cs" Link="Common\SkipLocalsInit.cs" />
</ItemGroup>
</When>
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7 changes: 6 additions & 1 deletion ...ies/System.Private.CoreLib/src/System/Runtime/CompilerServices/SkipLocalsInitAttribute.cs
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Expand Up @@ -25,7 +25,12 @@ namespace System.Runtime.CompilerServices
| AttributeTargets.Method
| AttributeTargets.Property
| AttributeTargets.Event, Inherited = false)]
public sealed class SkipLocalsInitAttribute : Attribute
#if SYSTEM_PRIVATE_CORELIB
public
#else
internal
#endif
sealed class SkipLocalsInitAttribute : Attribute
{
public SkipLocalsInitAttribute()
{
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