Regressions on native/master at commit r15-2407 vs commit r15-2402 on Linux/x86_64

[Haochen Jiang]

Regressions on master at commit r15-2407 vs commit r15-2402 on Linux/x86_64
New failures:

New passes:
FAIL: libgomp.c/../libgomp.c-c++-common/for-11.c execution test
FAIL: libgomp.c/../libgomp.c-c++-common/for-12.c execution test
FAIL: libgomp.c/../libgomp.c-c++-common/for-6.c execution test
FAIL: libgomp.c/../libgomp.c-c++-common/for-9.c execution test