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Allow disabling the linking of libdevice in CUDACompilerParams #2611

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Allow disabling the linking of libdevice in CUDACompilerParams #2611

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4b58767
Allow disabling the linking of libdevice in CUDACompilerParams
gbaraldi Jan 8, 2025
b3364d3
Address some comments
gbaraldi Feb 6, 2025
d199899
Merge branch 'master' into gb/reactant-fun
gbaraldi Feb 6, 2025
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7 changes: 6 additions & 1 deletion src/compiler/compilation.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -3,12 +3,14 @@
Base.@kwdef struct CUDACompilerParams <: AbstractCompilerParams
cap::VersionNumber
ptx::VersionNumber
link_libdevice::Bool # Used by Reactant.jl
end

CUDACompilerParams(;cap::VersionNumber, ptx::VersionNumber) = CUDACompilerParams(cap=cap, ptx=ptx, link_libdevice=true)
function Base.hash(params::CUDACompilerParams, h::UInt)
h = hash(params.cap, h)
h = hash(params.ptx, h)

h = hash(params.link_libdevice, h)
return h
end

Expand All @@ -27,6 +29,9 @@ GPUCompiler.isintrinsic(@nospecialize(job::CUDACompilerJob), fn::String) =
# link libdevice
function GPUCompiler.link_libraries!(@nospecialize(job::CUDACompilerJob), mod::LLVM.Module,
undefined_fns::Vector{String})
if !job.config.params.link_libdevice
return # Don't link libdevice, used by Reactant.jl to raise NVVM intrinsics into MLIR
end
# only link if there's undefined __nv_ functions
if !any(fn->startswith(fn, "__nv_"), undefined_fns)
return
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