[Bug ipa/125666] inline-unit-growth param not aggressive enough for SPEC2026

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125666

--- Comment #1 from ktkachov at gcc dot gnu.org ---
Created attachment 64673
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64673&action=edit
Reproducer for failed inlining

Attaching a synthetic reproducer that I think showcases the limitation in
various C++ benchmarks in SPEC2026. LLVM inlines all instances of h() that
enables a big speedup through vectorisation, but GCC refuses to do so even at
-O3 due to inline-unit-growth