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A comment on A first look at WebAssembly performance. Parent comment

Re:A first look at WebAssembly performance by pcwalton on Thursday February 09, 2017 @12:37PM (#13608886)
> Because the latter requires pointer-from-property calculation for every single values access (which must be somehow optimised)

Global value numbering (GVN) should be trivially able to do this.

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Re:A first look at WebAssembly performance by strainer on Friday February 10, 2017 @11:52PM (#13621098)
Perhaps when things are very simple, but we can end up with thousands of objects each with dozens of optional properties. With the fields declared as arrays only each array needs a GVN.
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