[llvm-bugs] [Bug 32921] New: Undefined variables in class Status in VirtualFileSystem.h

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Thu May 4 06:54:11 PDT 2017


            Bug ID: 32921
           Summary: Undefined variables in class Status in
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: zeccav at gmail.com
                CC: llvm-bugs at lists.llvm.org

After compiling clang trunk 301516 with gnu gcc -fsanitize=undefined option
I got many warnings at run time concerning undefined variables.

Many of them at tools/clang/include/clang/Basic/VirtualFileSystem.h:62

"Status() : Type(llvm::sys::fs::file_type::status_error) {}"

that I suggest to change into

"Status() : Type(llvm::sys::fs::file_type::status_error)

Thus explicitely initializing two local variables to safe values
and avoiding sanitizer warnings.

I propose to put this change in the trunk version.

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