Regressions on master at commit r16-4008 vs commit r16-4007 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on master at commit r16-4008 vs commit r16-4007 on Linux/x86_64
New failures:

New passes:
FAIL: gfortran.dg/matmul_blas_3.f90   -O   scan-tree-dump-not original 
"integer\\(kind=4\\)"