[Bug tree-optimization/63569] [5.0 Regression] Wrong code with volatile and ICF

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63569

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Any progress with fixing this bug? It still breaks building the 
Linux kernel with 5.0:

net/core/dev.c: In function ‘dev_change_net_namespace.part.22’:
net/core/dev.c:7285:1: internal compiler error: in verify_ssa, at
tree-ssa.c:939
 subsys_initcall(net_dev_init);
 ^