On 05/22/2013 02:23 AM, Andreas Krebbel wrote: > Mmmh ok. Where do you think the other approach (clobber in abort code + > abnormal edge) could break?
It's mostly about the infrastructure of maintaining the edges. It's quite a lot of code to maintain normal EH + TM edges. We don't even bother maintaining edges for setjmp/longjmp. There's really no infrastructure set up for special backend abnormal edges. And since we hope that everyone will be using the language-level TM, it seems like a waste to implement those special backend edges. r~
