derefptr

derefptr.jl

derefptr(thisptr, vtidx) = pointer(Void, unsafe_ref(pointer(Uint64, unsafe_ref(pointer(Uint64,thisptr)))+vtidx*8) )

julia> disassemble(Clang.wrap_cpp.derefptr, (Ptr{Void},Int64))

define i8* @julia_derefptr817(i8*, i64) {
top:
  %2 = bitcast i8* %0 to i64*, !dbg !7020, !julia_type !7027
  %3 = load i64* %2, !dbg !7020, !julia_type !7028
  %4 = inttoptr i64 %3 to i64*, !dbg !7020, !julia_type !7027
  %5 = ptrtoint i64* %4 to i64, !dbg !7020, !julia_type !7028
  %6 = shl i64 %1, 3, !dbg !7020
  %7 = add i64 %5, %6, !dbg !7020, !julia_type !7028
  %8 = inttoptr i64 %7 to i64*, !dbg !7020, !julia_type !7027
  %9 = load i64* %8, !dbg !7020, !julia_type !7028
  %10 = inttoptr i64 %9 to i8*, !dbg !7020, !julia_type !7029
  ret i8* %10, !dbg !7020
}