[llvm-bugs] [Bug 46855] New: clang frontend segfaulted. Parser at end of file Optimzer

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=46855

            Bug ID: 46855
           Summary: clang frontend segfaulted. Parser at end of file
                    Optimzer
           Product: clang
           Version: 9.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C
          Assignee: unassignedclangbugs at nondot.org
          Reporter: ishikawa at yk.rim.or.jp
                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 23773
  --> https://bugs.llvm.org/attachment.cgi?id=23773&action=edit
line64-8b4776.c

While I was trying to build thunderbird mailer locally (specifically ASAN
version), I got the following error.


clang-9: error: unable to execute command: Segmentation fault
clang-9: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 9.0.1
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/ishikawa/.mozbuild/clang/bin
clang-9: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ and include the crash backtrace, preprocessed source,
and associated run script.
clang-9: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-9: note: diagnostic msg: /COMM-CENTRAL/TMP-DIR/line64-8b4776.c
clang-9: note: diagnostic msg: /COMM-CENTRAL/TMP-DIR/line64-8b4776.sh
clang-9: note: diagnostic msg:
********************

So I am attaching the C source file and the accompanying .sh file.

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