[llvm-bugs] [Bug 32110] New: IRVerifier check triggered when building swift stdlib

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=32110

            Bug ID: 32110
           Summary: IRVerifier check triggered when building swift stdlib
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Modules
          Assignee: unassignedclangbugs at nondot.org
          Reporter: compnerd at compnerd.org
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org

The LLVM IRVerifier check is triggered for the modules DI as it is possible for
builtin types to be built from a module, resulting in a DIFile having a
filename of "".

clang::CodeGen::CGDebugInfo::getOrCreateModuleRef invokes
DIB.createFile(Mod.getModuleName(), Mod.getPath()), which gives ("",
".../module-cache/..."), which constructs an invalid DIFile.

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