[LLVMdev] Why LLVM should NOT have garbage collection intrinsics[MESSAGE NOT SCANNED]

[Gordon Henriksen]

On 2009-03-01, at 14:11, Mark Shannon wrote:

> Without the ability to traverse the stack in a portable way, the  
> only way I can write a portable GC is to avoid the llvm intrinsics.  
> Therefore, they are useless and should be removed.

Nonsense. Compare at: DWARF EH tables vs. unwind support in libgcc  
(not LLVM). It would be more accessible for those developing novel  
runtimes if LLVM incorporated facilities to make building runtimes  
easier, however—which is precisely what this thread was about to begin  
with.

— Gordon

P.S. HP has published a library that should work to crawl the stack  
for return addresses. It is permissively licensed.

http://www.nongnu.org/libunwind/