[llvm-bugs] [Bug 44685] New: [ThinLTO] llvm::DwarfDebug::NonTypeUnitContext::NonTypeUnitContext(llvm::DwarfDebug *): Assertion `TypeUnitsUnderConstruction.empty() || !DD->AddrPool.hasBeenUsed()' failed.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=44685

            Bug ID: 44685
           Summary: [ThinLTO]
                    llvm::DwarfDebug::NonTypeUnitContext::NonTypeUnitConte
                    xt(llvm::DwarfDebug *): Assertion
                    `TypeUnitsUnderConstruction.empty() ||
                    !DD->AddrPool.hasBeenUsed()' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: caij2003 at gmail.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org,
                    neeilans at live.com, richard-llvm at metafoo.co.uk

Created attachment 23066
  --> https://bugs.llvm.org/attachment.cgi?id=23066&action=edit
A reduced code example for reproducing the issue.

Chrome failed to build during linking with thinlto on ChromeOS with the
following assertion failure

chromeos-chrome-81.0.4001.0_rc-r1: ld.lld:
/var/tmp/portage/sys-devel/llvm-10.0_pre370808_p20191029-r6/work/llvm-10.0_pre370808_p20191029/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp:2998:
llvm::DwarfDebug::NonTypeUnitContext::NonTypeUnitContext(llvm::DwarfDebug *):
Assertion `TypeUnitsUnderConstruction.empty() || !DD->AddrPool.hasBeenUsed()'
failed.


I've attached a reduced example (repro.cpp). To reproduce, run

$ /path/to/clang++ -c -g -gsplit-dwarf -mllvm -generate-type-units repro.cpp

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