JIT: implement operation narrowing phase

dotnet / runtime

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

https://docs.microsoft.com/dotnet/core/

MIT License

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Open AndyAyersMS opened 4 years ago

AndyAyersMS commented 4 years ago

Implement a narrowing optimization to reduce width of computations, where profitable.

See for instance #32089.

Likely would rely on part-word (or maybe even bitwise) liveness. Could be done locally (per tree) or globally.

category:cq theme:optimization skill-level:expert cost:large

EgorBo commented 4 years ago