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[AVX10.2]Optimize codegen for x86 using the new saturating conversion instructions when possible. #109080

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DeepakRajendrakumaran opened this issue Oct 21, 2024 · 1 comment
Open

[AVX10.2]Optimize codegen for x86 using the new saturating conversion instructions when possible. #109080

DeepakRajendrakumaran opened this issue Oct 21, 2024 · 1 comment
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area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI avx10 Related to the AVX10 architecture
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10.0.0

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@DeepakRajendrakumaran
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AVX10.2 introduces a set of saturating conversion instructions. These will allow us to further optimize the various floating point-> integer conversions. Specifically cases where we are currently handling edge cases with additional instructions. With these new instructions, we can accomplish this with just 1 instruction

Eg. double -> ulong

This currently generates the following 2 instructions

vfixupimmsd 
vcvttsd2usi

The new Avx10.2 instructions are the following
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@dotnet-issue-labeler dotnet-issue-labeler bot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Oct 21, 2024
@dotnet-policy-service dotnet-policy-service bot added the untriaged New issue has not been triaged by the area owner label Oct 21, 2024
@DeepakRajendrakumaran DeepakRajendrakumaran changed the title [AVX10.2]Optimize codegen for x86 using saturating conversions when possible [AVX10.2]Optimize codegen for x86 using the new saturating conversion instructions when possible. Oct 21, 2024
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@BruceForstall BruceForstall added the avx10 Related to the AVX10 architecture label Oct 21, 2024
@BruceForstall BruceForstall added this to the 10.0.0 milestone Oct 21, 2024
@BruceForstall BruceForstall removed the untriaged New issue has not been triaged by the area owner label Oct 21, 2024
@BruceForstall BruceForstall mentioned this issue Oct 17, 2024
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@khushal1996 khushal1996 mentioned this issue Jan 27, 2025
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