Regressions on master at commit r12-6620 vs commit r12-6608 on Linux/i686

[H.J. Lu]

New failures:
FAIL: gfortran.dg/ieee/signaling_3.f90   -O0  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -O1  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -O2  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -O3 -g  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -Os  execution test

New passes:
FAIL: gfortran.dg/ieee/signaling_1.f90   -O0  execution test
FAIL: gfortran.dg/ieee/signaling_1.f90   -O1  execution test
FAIL: gfortran.dg/ieee/signaling_1.f90   -O2  execution test
FAIL: gfortran.dg/ieee/signaling_1.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/ieee/signaling_1.f90   -O3 -g  execution test
FAIL: gfortran.dg/ieee/signaling_1.f90   -Os  execution test
FAIL: g++.old-deja/g++.robertl/eb43.C  -std=c++14 (test for excess errors)
FAIL: g++.old-deja/g++.robertl/eb43.C  -std=c++17 (test for excess errors)
FAIL: g++.old-deja/g++.robertl/eb43.C  -std=c++2a (test for excess errors)