Regressions on native/releases/gcc-15 at commit r15-11504 vs commit r15-11495 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on releases/gcc-15 at commit r15-11504 vs commit r15-11495 on 
Linux/x86_64
New failures:

New passes:
FAIL: gcc.dg/guality/pr41616-1.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  -DPREVENT_OPTIMIZATION execution test