[LLVMdev] why is gc.root 8 bits?

[Hayden Livingston]

I'm trying to add gcoot functionality to my code and I'm confused by why
gcroot is assuming to be an i8**

I'm using i32 as object and array pointers and if I make them i8 things
seem to work.

I'm generating IR much like
http://llvm.org/docs/GarbageCollection.html#llvm-ir-features

void @llvm.gcroot(i8** %ptrloc, i8* %metadata)
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