[Bug rtl-optimization/64164] [4.9/5/6 Regression] one more stack slot used due to one less inlining level

[aoliva at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64164
Bug 64164 depends on bug 67034, which changed state.

Bug 67034 Summary: [6 Regression] FAIL: gcc.c-torture/compile/pr39928-1.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67034

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED