Regressions on native/master at commit r15-4791 vs commit r15-4787 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on master at commit r15-4791 vs commit r15-4787 on Linux/x86_64
New failures:

New passes:
FAIL: libgomp.c/examples-4/teams-4.c execution test
FAIL: libgomp.c/../libgomp.c-c++-common/for-3.c execution test
FAIL: libgomp.c/../libgomp.c-c++-common/for-5.c execution test