Regressions on master at commit r15-2815 vs commit r15-2811 on Linux/x86_64

[Haochen Jiang]

Regressions on master at commit r15-2815 vs commit r15-2811 on Linux/x86_64
New failures:

New passes:
FAIL: gfortran.dg/sizeof_6.f90   -O1  execution test
FAIL: libgomp.c++/static-aggr-constructor-destructor-1.C scan-tree-dump-times optimized "__attribute__\\(\\([^\n\r]*omp declare target nohost" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-1.C scan-tree-dump-times optimized "__attribute__\\(\\([^\n\r]*omp declare target nohost" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-1.C scan-tree-dump-times optimized "void _GLOBAL__off_I_v1" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-1.C scan-tree-dump-times optimized "void _GLOBAL__off_I_v1" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-2.C scan-tree-dump-times optimized "__attribute__\\(\\([^\n\r]*omp declare target nohost" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-2.C scan-tree-dump-times optimized "__attribute__\\(\\([^\n\r]*omp declare target nohost" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-2.C scan-tree-dump-times optimized "void _GLOBAL__off_I_" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-2.C scan-tree-dump-times optimized "void _GLOBAL__off_I_" 1