Regressions on native/releases/gcc-15 at commit r15-10277 vs commit r15-10270 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on releases/gcc-15 at commit r15-10277 vs commit r15-10270 on 
Linux/x86_64
New failures:

New passes:
FAIL: libgomp.c++/../libgomp.c-c++-common/for-11.c execution test
FAIL: libgomp.graphite/force-parallel-8.c execution test