Regressions on trunk at revision 238239 vs revision 237882

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: gcc.target/i386/sse2-load-multi.c scan-assembler-times movup 2
FAIL: gcc.target/i386/sse2-load-multi.c scan-assembler-times movup 2
FAIL: gfortran.dg/ldist-1.f90   -O   scan-tree-dump ldist "distributed: split to"
FAIL: gfortran.dg/ldist-1.f90   -O   scan-tree-dump ldist "distributed: split to"
FAIL: gfortran.dg/pr42108.f90   -O   scan-tree-dump pre "in all uses of countm1[^\n]* / "
FAIL: gfortran.dg/vect/pr62283.f   -O   scan-tree-dump-times vect "vectorized 1 loops" 2

New passes:
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c   -Os  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-3.c   -Os  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c   -O1  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c   -O2  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c   -O3 -g  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c   -Os  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c   -O1  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c   -O2  execution test
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: libgomp.fortran/examples-4/simd-2.f90   -O2  execution test
FAIL: libgomp.fortran/examples-4/simd-2.f90   -O2  execution test
FAIL: libgomp.fortran/examples-4/simd-2.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: libgomp.fortran/examples-4/simd-2.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: libgomp.fortran/examples-4/simd-2.f90   -O3 -g  execution test
FAIL: libgomp.fortran/examples-4/simd-2.f90   -O3 -g  execution test