Regressions on trunk at revision 265940 vs revision 265914

[H.J. Lu (Intel64)]

New failures:
FAIL: gcc.dg/pr79342.c (internal compiler error)
FAIL: gcc.dg/pr79342.c (test for excess errors)

New passes:
FAIL: gcc.dg/warn-strlen-no-nul.c 3 blank line(s) in output
FAIL: gfortran.dg/bessel_6.f90   -O0  execution test
FAIL: gfortran.dg/bessel_6.f90   -O1  execution test
FAIL: gfortran.dg/bessel_6.f90   -O2  execution test
FAIL: gfortran.dg/bessel_6.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/bessel_6.f90   -O3 -g  execution test
FAIL: gfortran.dg/bessel_6.f90   -Os  execution test