Test allocations #75171
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Test allocations #75171
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Continuing to work on unnecessary allocations in our unit tests
dotnet-issue-labeler
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Area-Compilers
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jaredpar
commented
Sep 19, 2024
| @@ -12384,7 +12384,7 @@ void binaryOperator(string op, string leftType, string rightType, string expecte | |||
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| if (expectedDiagnostics.Length == 0) | |||
| { | |||
| CompileAndVerify(comp); | |||
| CompileAndVerify(comp, emitOptions: EmitOptions.Default); | |||
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By default CompileAndVerify embeds portable PDBs and the sheer number of tests here was causing that allocate 100MB of unnecessary byte[].
| @@ -13,6 +13,7 @@ | |||
| using System.IO; | |||
| using System.Linq; | |||
| using System.Reflection; | |||
| using System.Runtime.InteropServices; | |||
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This is a significant source of redundant byte[] allocations.
| /// <summary> | ||
| /// This is the full set of references provided by default on the .NET Framework TFM | ||
| /// </summary> | ||
| /// <remarks> | ||
| /// Need to special case tuples until we move to net472 | ||
| /// </remarks> | ||
| public static ImmutableArray<MetadataReference> References { get; } = [.. Net461.References.All, Net461.ExtraReferences.SystemValueTuple]; | ||
| public static ImmutableArray<MetadataReference> References |
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There are a number of tests that call say NetFramework.mscorlib. When this was a static initializer that realized all these values when they didn't really need to be. This is only a savings in certain silces of our tests but it's a significant one in them.
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@dotnet/roslyn-compiler PTAL |
AlekseyTs
reviewed
Sep 19, 2024
AlekseyTs
reviewed
Sep 19, 2024
333fred
approved these changes
Sep 19, 2024
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Continuing to work on unnecessary allocations in our unit tests