Regressions on native/master at commit r16-6749 vs commit r16-6744 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on master at commit r16-6749 vs commit r16-6744 on Linux/x86_64
New failures:

New passes:
FAIL: libgomp.c/../libgomp.c-c++-common/simd-1.c (test for excess errors)