Re: [PATCH v2] x86: fix early boot crash on gcc-10

[Peter Zijlstra]

On Fri, Apr 17, 2020 at 10:58:59AM +0200, Jakub Jelinek wrote:
> Or go with the for (;;);, I don't think any compiler optimizes those away;
> GCC 10 for C++ can optimize away infinite loops that have some conditional
> exit because the language guarantees forward progress, but the C language
> rules are different and for unconditional infinite loops GCC doesn't
> optimize them away even if explicitly asked to -ffinite-loops.

'Funnily' there are people building the kernel with C++ :/