search for: opt_33

...s the object to the garbage collector. However, pointers to the objects point past the header and at the actual object. Sometimes, however, the program itself accesses the header. For example, to determine the length of an array (the length is in the header). For every type I output it like this: %opt_33 = { i32, %opt_45*, float } I could also create another type which includes the header something like: %opt_33_with_header = {i32, %opt_33 } Is there any way to express that a pointer is actually a pointer to an interior element of a type? Something like %opt_33_in_heap = %opt_33_with_header:1 ?...

...at won't work. What you can do is abuse address spaces, giving every distinct type its own address space and casting back and forth between address spaces as necessary. > Is there any way to express that a pointer is actually a pointer to an > interior element of a type? Something like %opt_33_in_heap = > %opt_33_with_header:1 ? Something like an ungetelementptr? No, sorry. That would be a pretty nice extension, though obviously unsound, of course. > Currently when I want to read the header of an %opt_33, I cast it to a > i32* and then use getelementptr -1. Is there a better...