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Cannot deduce type of copy call void @llvm.memcpy.p10i8.p0i8.i64
#1547
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The problem is that this type doesn't have any ino when taking a typetree of it between bytes 16 and 24. %box34 = call noalias nonnull dereferenceable(240) "enzyme_type"="{[-1]:Pointer, [-1,0]:Integer, [-1,8]:Integer, [-1,9]:Integer, [-1,10]:Integer, [-1,11]:Integer, [-1,12]:Integer, [-1,13]:Integer, [-1,14]:Integer, [-1,15]:Integer, [-1,16]:Integer, [-1,24]:Integer, [-1,25]:Integer, [-1,26]:Integer, [-1,27]:Integer, [-1,28]:Integer, [-1,29]:Integer, [-1,30]:Integer, [-1,31]:Integer, [-1,32]:Float@float, [-1,40]:Float@double, [-1,48]:Integer, [-1,49]:Integer, [-1,50]:Integer, [-1,51]:Integer, [-1,52]:Integer, [-1,53]:Integer, [-1,54]:Integer, [-1,55]:Integer, [-1,56]:Float@double, [-1,64]:Integer, [-1,65]:Integer, [-1,66]:Integer, [-1,67]:Integer, [-1,68]:Integer, [-1,69]:Integer, [-1,70]:Integer, [-1,71]:Integer, [-1,72]:Integer, [-1,73]:Integer, [-1,74]:Integer, [-1,75]:Integer, [-1,76]:Integer, [-1,77]:Integer, [-1,78]:Integer, [-1,79]:Integer, [-1,80]:Integer, [-1,81]:Integer, [-1,82]:Integer, [-1,83]:Integer, [-1,84]:Integer, [-1,85]:Integer, [-1,86]:Integer, [-1,87]:Integer, [-1,88]:Integer, [-1,89]:Integer, [-1,90]:Integer, [-1,91]:Integer, [-1,92]:Integer, [-1,93]:Integer, [-1,94]:Integer, [-1,95]:Integer, [-1,96]:Integer, [-1,97]:Integer, [-1,98]:Integer, [-1,99]:Integer, [-1,100]:Integer, [-1,101]:Integer, [-1,102]:Integer, [-1,103]:Integer, [-1,104]:Integer, [-1,105]:Integer, [-1,106]:Integer, [-1,107]:Integer, [-1,108]:Integer, [-1,109]:Integer, [-1,110]:Integer, [-1,111]:Integer, [-1,112]:Integer, [-1,113]:Integer, [-1,114]:Integer, [-1,115]:Integer, [-1,116]:Integer, [-1,117]:Integer, [-1,118]:Integer, [-1,119]:Integer, [-1,120]:Integer, [-1,121]:Integer, [-1,122]:Integer, [-1,123]:Integer, [-1,124]:Integer, [-1,125]:Integer, [-1,126]:Integer, [-1,127]:Integer, [-1,128]:Integer, [-1,136]:Integer, [-1,137]:Integer, [-1,138]:Integer, [-1,139]:Integer, [-1,140]:Integer, [-1,141]:Integer, [-1,142]:Integer, [-1,143]:Integer, [-1,144]:Float@float, [-1,152]:Float@double, [-1,160]:Integer, [-1,161]:Integer, [-1,162]:Integer, [-1,163]:Integer, [-1,164]:Integer, [-1,165]:Integer, [-1,166]:Integer, [-1,167]:Integer, [-1,168]:Float@double, [-1,176]:Integer, [-1,177]:Integer, [-1,178]:Integer, [-1,179]:Integer, [-1,180]:Integer, [-1,181]:Integer, [-1,182]:Integer, [-1,183]:Integer, [-1,184]:Integer, [-1,185]:Integer, [-1,186]:Integer, [-1,187]:Integer, [-1,188]:Integer, [-1,189]:Integer, [-1,190]:Integer, [-1,191]:Integer, [-1,192]:Integer, [-1,193]:Integer, [-1,194]:Integer, [-1,195]:Integer, [-1,196]:Integer, [-1,197]:Integer, [-1,198]:Integer, [-1,199]:Integer, [-1,200]:Integer, [-1,201]:Integer, [-1,202]:Integer, [-1,203]:Integer, [-1,204]:Integer, [-1,205]:Integer, [-1,206]:Integer, [-1,207]:Integer, [-1,208]:Integer, [-1,209]:Integer, [-1,210]:Integer, [-1,211]:Integer, [-1,212]:Integer, [-1,213]:Integer, [-1,214]:Integer, [-1,215]:Integer, [-1,216]:Integer, [-1,217]:Integer, [-1,218]:Integer, [-1,219]:Integer, [-1,220]:Integer, [-1,221]:Integer, [-1,222]:Integer, [-1,223]:Integer, [-1,224]:Integer, [-1,225]:Integer, [-1,226]:Integer, [-1,227]:Integer, [-1,228]:Integer, [-1,229]:Integer, [-1,230]:Integer, [-1,231]:Integer, [-1,232]:Integer, [-1,233]:Integer, [-1,234]:Integer, [-1,235]:Integer, [-1,236]:Integer, [-1,237]:Integer, [-1,238]:Integer, [-1,239]:Integer}" {} addrspace(10)* @julia.gc_alloc_obj({}** nonnull %current_task1, i64 noundef 240, {} addrspace(10)* noundef addrspacecast ({}* inttoptr (i64 137776915697616 to {}*) to {} addrspace(10)*)) #46, !dbg !757
%35 = bitcast {} addrspace(10)* %box34 to i8 addrspace(10)*, !dbg !757
julia> obj(137776915697616)
AutoBody{WaterLily.var"#comp#232"{Bool, var"#sdf#3"{Int64}, var"#map#2"{Bool, Int64, Float32, Float64, Int64, Float64, SVector{2, Rational{Int64}}, SVector{2, Rational{Int64}}}}, var"#map#2"{Bool, Int64, Float32, Float64, Int64, Float64, SVector{2, Rational{Int64}}, SVector{2, Rational{Int64}}}} |
okay I'm deeply confused by this memcpy of 7 bytes. Why is this happening. where does it come from? |
logs of relevance so we don't need to rerun:
|
This is likely LLVM optimizing a copy loop? But why 7 and not 9 I do not know. |
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Reproducer:
Full log: https://gist.github.com/vchuravy/8e70c7ff38fd150f941fef6a7af6cc92
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