[Libre-soc-bugs] [Bug 251] Initial 3D MESA non-accelerated software-only driver is needed

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=251

--- Comment #14 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to vivekvpandya from comment #11)
> We should also take a look at
> https://mlir.llvm.org/docs/SPIRVToLLVMDialectConversion/

https://mlir.llvm.org/docs/SPIRVToLLVMDialectConversion/#special-cases-1

ah ok so we will want to actually generate a rsqrt llvm instruction,
because we will actually _have_ an rsqrt assembly-level instruction
in the hardware.

also, slightly puzzled: i'm not seeing anything there about predication,
vec2/3/4, or swizzle?

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