[Bug ipa/127693] [13/14/15/16/17] Miscompilation: __builtin_constant_p branch removed then still apparently used

[thiago at kde dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127693

--- Comment #2 from Thiago Macieira <thiago at kde dot org> ---
A scan for why -O3 passed indicates the culprit is simply the number of
instructions inline: -O3 --param=early-inlining-insns=6 also fails.