Also there are some botched examples, e.g. :

> define void @src(ptr %a, ptr %b) > { > %mem = alloca i8 > call void @llvm.memcpy(ptr %mem, ptr %a, i32 1) > call void @llvm.memcpy(ptr %a, ptr %mem, i32 1) > ret void > }

The last %a should be a %b. But you can get the idea anyway.