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fix pointerarith_tfunc for Const ptr #60011

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Merged
Keno merged 2 commits into from
Nov 1, 2025
Merged

fix pointerarith_tfunc for Const ptr #60011

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e4c1f6c
fix `pointerarith_tfunc` for Const ptr
oscardssmith Nov 1, 2025
96a1670
add test
oscardssmith Nov 1, 2025
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2 changes: 1 addition & 1 deletion Compiler/src/tfuncs.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -708,7 +708,7 @@ function pointer_eltype(@nospecialize(ptr))
end

@nospecs function pointerarith_tfunc(𝕃::AbstractLattice, ptr, offset)
return ptr
return widenconst(ptr)
end
@nospecs function pointerref_tfunc(𝕃::AbstractLattice, a, i, align)
return pointer_eltype(a)
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7 changes: 7 additions & 0 deletions Compiler/test/effects.jl
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Expand Up @@ -1486,3 +1486,10 @@ let effects = Base.infer_effects((Core.SimpleVector,Int); optimize=false) do sve
end

@test Compiler.is_nothrow(Base.infer_effects(length, (Core.SimpleVector,)))


# https://github.com/JuliaLang/julia/issues/60009
function null_offset(offset)
Ptr{UInt8}(C_NULL) + offset
end
@test null_offset(Int(100)) == Ptr{UInt8}(UInt(100))