Regressions on trunk at revision 206178 vs revision 206167

[H.J. Lu ia32]

New failures:
FAIL: gcc.dg/vect/costmodel/i386/costmodel-fast-math-vect-pr29925.c scan-tree-dump-times vect "vectorized 1 loops" 1
FAIL: gcc.dg/vect/costmodel/i386/costmodel-vect-31.c scan-tree-dump-times vect "vectorization not profitable" 1
FAIL: gcc.dg/vect/costmodel/i386/costmodel-vect-31.c scan-tree-dump-times vect "vectorized 3 loops" 1
FAIL: gcc.dg/vect/costmodel/i386/costmodel-vect-68.c scan-tree-dump-times vect "vectorized 4 loops" 1
FAIL: gcc.target/i386/avx2-cvt-2.c scan-tree-dump-times vect "note: vectorized 1 loops in function" 6
FAIL: gcc.target/i386/avx-cvt-2.c scan-tree-dump-times vect "note: vectorized 1 loops in function" 6
FAIL: gcc.target/i386/avx-cvt-3.c scan-tree-dump-times vect "note: vectorized 1 loops in function" 6
FAIL: gcc.target/i386/memcpy-2.c scan-assembler-not (jmp|call)[\\t ]*memcpy
FAIL: gcc.target/i386/memcpy-3.c scan-assembler-not (jmp|call)[\\t ]*memcpy
FAIL: gcc.target/i386/pr46295.c scan-assembler-times avx_vzeroupper 1
FAIL: gcc.target/i386/sse2-cvt-2.c scan-tree-dump-times vect "note: vectorized 1 loops in function" 6
FAIL: g++.dg/ext/mv1.C -std=gnu++11 (test for excess errors)
FAIL: g++.dg/ext/mv1.C -std=gnu++98 (test for excess errors)
FAIL: g++.dg/ext/pr57548.C -std=c++11 (test for excess errors)
FAIL: g++.dg/ext/pr57548.C -std=c++98 (test for excess errors)

New passes: