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

[dave.anglin at bell dot net]

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

--- Comment #9 from dave.anglin at bell dot net ---
On 2019-08-16 5:47 a.m., ebotcazou at gcc dot gnu.org wrote:
> Created attachment 46721
>   --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46721&action=edit
> Tentative fix
Testing.  Looking at change, it now seems obvious.  Thanks for investigating.

The change fixes compilation of testcase.