[Bug rtl-optimization/91347] [7/8/9/10 Regression] pointer_string in linux vsprintf.c is miscompiled when sibling calls are optimized

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91347

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
   Target Milestone|---                         |7.5
            Summary|[7,8,9 Regression]          |[7/8/9/10 Regression]
                   |pointer_string in linux     |pointer_string in linux
                   |vsprintf.c is miscompiled   |vsprintf.c is miscompiled
                   |when sibling calls are      |when sibling calls are
                   |optimized                   |optimized