kristina added inline comments.
================
Comment at: lib/Lex/PPDirectives.cpp:1892
if (!File) {
- while (!isAlphanumeric(Filename.front())) {
+ while (!Filename.empty() && !isAlphanumeric(Filename.front())) {
Filename = Filename.drop_front();
----------------
This line is tripping the assert, it seems best course of action would be a
single check here and then just diagnosing an error unless you have managed to
find other cases, in which case all the checks below are also warranted.
Repository:
rC Clang
https://reviews.llvm.org/D52721
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