[llvm-bugs] [Bug 36636] New: Assembling file with debug info does the wrong thing

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=36636

            Bug ID: 36636
           Summary: Assembling file with debug info does the wrong thing
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: MC
          Assignee: unassignedbugs at nondot.org
          Reporter: paul_robinson at playstation.sony.com
                CC: llvm-bugs at lists.llvm.org

This was given as a reason for reverting r326839:

$ cat q.c 
void g() {}
$ clang -S q.c -g
$ clang -g -c q.s 
q.s:9:2: error: file number already allocated
        .file   1 "/tmp/test" "q.c"
        ^

However, the behavior without that patch is that the .debug_line section
gives "q.s" as file 1, not "q.c".  (using gcc instead of clang here will
put "q.c" in the .debug_line section.) So, LLVM's behavior was broken to
begin with.

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