Regressions on master at commit r17-3173 vs commit r17-3171 on Linux/x86_64 New failures: FAIL: gfortran.dg/coarray/dummy_3.f90 -fcoarray=lib -pthread -O2 -lcaf_shmem -lrt execution test
New passes: FAIL: gcc.dg/lto/save-temps c_lto_save-temps_0.o-c_lto_save-temps_0.o link, -O -flto -save-temps
