When all of these issues are resolved, the self-hosted x86 backend can become the default backend when Debug is chosen for optimization mode: * [x] #17646 * [x] #17645 * [x] #17618 * [x] #17513 * [x] #15329 * [x] #17678 * [x] #17794 * [x] #17811 * [x] #8727 * [ ] #17749 * [ ] #17751, or at least ability to create coff object files (e.g. `-flld -fno-llvm` combined together) * [x] #19372
When all of these issues are resolved, the self-hosted x86 backend can become the default backend when Debug is chosen for optimization mode:
-fstrip#17513-flld -fno-llvmcombined together)