Jan Svoboda 8fe71e0bdf [support] Don't require VFS in SourceMgr for loading includes (#163862) ...

This commit more gracefully handles situations where `SourceMgr` isn't
initialized with a VFS and tries to resolve an include. That's what
happens with the test case `clang -flto=thin -c test.c -o /dev/null`
where test.c contains `asm(" .incbin \"foo.i\" \n");`. Propagating the
actual VFS all the way is very difficult.

This is a follow-up to #162903.

2025-10-17 08:12:34 -07:00

22 KiB

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