Regressions on native/releases/gcc-15 at commit r15-9860 vs commit r15-9858 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on releases/gcc-15 at commit r15-9860 vs commit r15-9858 on 
Linux/x86_64
New failures:

New passes:
FAIL: gcc.dg/guality/pr41447-1.c   -Os  -DPREVENT_OPTIMIZATION  execution test