Regressions on native/master at commit r15-4262 vs commit r15-4186 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on master at commit r15-4262 vs commit r15-4186 on Linux/x86_64
New failures:

New passes:
FAIL: gcc.dg/pr67089-6.c scan-tree-dump-times widening_mul "SUB_OVERFLOW" 7
FAIL: gcc.dg/pr67089-6.c scan-tree-dump-times widening_mul "SUB_OVERFLOW" 9