JonasToth added a comment.
F5426271: llvm_lib_target_x86_paths <https://reviews.llvm.org/F5426271>
Example output for `llvm/lib/Target/X86`
Running it over the whole `llvm/lib` codebase generates a lot of warnings.
Please note, that it seems to be common to write code like this:
int Val;
switch(Val) {
case 1: // something
case 2: // something else
case 16: // magic
}
llvm_unreachable("reason");
In some cases it has been taken care that no fallthrough happens, but it's not
so simple to spot. Using `default: llvm_unreachable("reason");` would comply
with the check.
https://reviews.llvm.org/D37808
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