search for: intrtinaics

Displaying 2 results from an estimated 2 matches for "intrtinaics".

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2020 Nov 13
2
Complex proposal v3 + roundtable agenda
> On Nov 13, 2020, at 15:11, Krzysztof Parzyszek via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Examples of complex instructions? Hexagon has a cmpy instruction for complex multiplication, although it works on int16-based values. There is a whole set of these instructions (with various saturation/rounding behaviors), but each one of them can multiply two complex numbers
2020 Nov 18
0
Complex proposal v3 + roundtable agenda
...to do such lowering. "Normal" LLVM instructions with a first-class complex type is similarly lowerable. I'm not necessarily opposed to intrinsics (especially if we have Simon's generic matchers available) but I think it's important to be clear what we're talking about. Intrtinaics vs. first-class complex types have different tradeoffs. With Simon's generic matchers those trade-offs are less stark to me though. -David