https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66004
--- Comment #4 from Hans-Peter Nilsson <hp at gcc dot gnu.org> --- (In reply to Hans-Peter Nilsson from comment #3) > Something supposedly very good happened recently, because: > r223225 18369501023 > > I'll just have to find out what caused that 50% cut! The test-case is > unchanged. > If the cause is related to inlining heuristics, I'll close this PR for sure. Ignore that. I misobserved the "nearby" test-case 26_numerics/random/poisson_distribution/operators/values.cc probably because there was a test-run still in progress. Still, that similar test-case indeed seems to have lower initialization numbers. Lesson learned: always double-check your end-point observations before bisecting.