Regressions on trunk at revision 238453 vs revision 238426

[H.J. Lu ia32 Core i7]

New failures:
FAIL: gcc.dg/stack-layout-dynamic-1.c scan-assembler-not cfi_def_cfa_register

New passes:
FAIL: libgomp.fortran/simd3.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: libgomp.fortran/simd3.f90   -O3 -g  execution test
FAIL: libgomp.fortran/simd4.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: libgomp.fortran/simd4.f90   -O3 -g  execution test