[llvm-bugs] [Bug 47579] New: Assertion failure when executable path contains \" on Windows

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47579

            Bug ID: 47579
           Summary: Assertion failure when executable path contains \" on
                    Windows
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Support Libraries
          Assignee: unassignedbugs at nondot.org
          Reporter: john.brawn at arm.com
                CC: llvm-bugs at lists.llvm.org

If an llvm tool is invoked using a path that contains \" on Windows due to some
part of the path ending in \ being quoted, e.g.
  "F:\work\build\bin\"opt --help
then this results in an assertion failure:
  Assertion failed: idx < size(), file
F:\work\src\llvm-project\llvm\include\llvm/ADT/SmallVector.h, line 183

It looks like probably something is going wrong in
windows::GetCommandLineArguments in llvm/lib/Support/Windows/Process.inc or in
the functions that it calls (cl::TokenizeWindowsCommandLine or
GetExecutableName).

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