[llvm-bugs] [Bug 42467] New: Assertion `MaybeODRUseExprs.empty() && "Leftover expressions for odr-use checking"' failed.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=42467

            Bug ID: 42467
           Summary: Assertion `MaybeODRUseExprs.empty() && "Leftover
                    expressions for odr-use checking"' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: keveman at gmail.com
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

Created attachment 22174
  --> https://bugs.llvm.org/attachment.cgi?id=22174&action=edit
Test case crashing clang frontend

clang crashes with that assertion failing.
https://bugs.llvm.org/show_bug.cgi?id=12581 and
https://bugs.llvm.org/show_bug.cgi?id=13986 seem like possible duplicates, but
my test case was different enough, that I feel this maybe a different bug
causing the same assertion failure.

clang cloned from https://github.com/llvm/llvm-project
Latest commit 42e13c83284e94607b3a5751598f2c1661447356 Wed Jun 26 15:11:31 2019

clang -c 119.cc -O0 -emit-llvm -save-temps
clang-9: /cb/home/manjunath/ws/llvm-project/clang/lib/Sema/SemaDecl.cpp:13564:
clang::Decl* clang::Sema::ActOnFinishFunctionBody(clang::Decl*, clang::Stmt*,
bool): Assertion `MaybeODRUseExprs.empty() && "Leftover expressions for odr-use
checking"' failed.
Stack dump:
0.      Program arguments: /spare/manjunath-build-llvm/bin/clang-9 -cc1 -triple
x86_64-unknown-linux-gnu -emit-llvm-bc -emit-llvm-uselists -save-temps=cwd
-disable-free -main-file-name 119.cc -mrelocation-model static -mthread-model
posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases
-munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info
-debugger-tuning=gdb -coverage-notes-file
/cb/home/manjunath/ws/test/cerebras/119.gcno -resource-dir
/spare/manjunath-build-llvm/lib/clang/9.0.0 -O0 -fdeprecated-macro
-fdebug-compilation-dir /cb/home/manjunath/ws/test/cerebras -ferror-limit 19
-fmessage-length 0 -fobjc-runtime=gcc -fcxx-exceptions -fexceptions
-fdiagnostics-show-option -fcolor-diagnostics -disable-llvm-passes -faddrsig -o
119.tmp.bc -x c++-cpp-output 119.ii

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