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Fix performance of AppleAccelerate check for Enzyme #755

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Merged
merged 1 commit into from
Aug 22, 2025
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Fix performance of AppleAccelerate check for Enzyme #755

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20 changes: 9 additions & 11 deletions src/appleaccelerate.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -14,20 +14,18 @@ to avoid allocations and does not require libblastrampoline.
"""
struct AppleAccelerateLUFactorization <: AbstractFactorization end


# To make Enzyme happy, this has to be static
@static if !Sys.isapple()
const AA_IS_AVAILABLE = false
__appleaccelerate_isavailable() = false
else
function __appleaccelerate_isavailable()
libacc_hdl = Libdl.dlopen_e(libacc)
if libacc_hdl == C_NULL
return false
end

if dlsym_e(libacc_hdl, "dgetrf_") == C_NULL
return false
end
return true
@static if Libdl.dlopen_e(libacc) == C_NULL
__appleaccelerate_isavailable() = false
end
@static if dlsym_e(Libdl.dlopen_e(libacc), "dgetrf_") == C_NULL
__appleaccelerate_isavailable() = false
else
__appleaccelerate_isavailable() = true
end
end

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