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dotnet / runtime

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
https://docs.microsoft.com/dotnet/core/
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Have more C++ intrinsics usage in runtime and JIT #69401

Open kunalspathak opened 2 years ago

kunalspathak commented 2 years ago

We should start adding more C++ intrinsics helper methods and start consuming them in runtime and JIT codebase for throughput increase. E.g. https://github.com/dotnet/runtime/pull/69333 changes the genLog2() implementation of Arm64 to use BitScanForward.

category:implementation theme:throughput skill-level:intermediate cost:medium impact:small

ghost commented 2 years ago

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Issue Details
We should start adding more C++ intrinsics helper methods and start consuming them in runtime and JIT codebase for throughput increase. E.g. https://github.com/dotnet/runtime/pull/69333 changes the `genLog2()` implementation of Arm64 to use [BitScanForward](https://docs.microsoft.com/en-us/cpp/intrinsics/bitscanforward-bitscanforward64?view=msvc-170).
Author: kunalspathak
Assignees: -
Labels: `area-CodeGen-coreclr`
Milestone: -