Regressions on trunk at revision 180202 vs revision 180197

[H.J. Lu Intel64 Core 2/i7]

New failures:

New passes:
FAIL: gcc.dg/tree-ssa/builtin-expect-1.c scan-tree-dump-times gimple "builtin_expect[^\n]*, 0\);\n[^\n]*if" 2
FAIL: gcc.dg/tree-ssa/builtin-expect-1.c scan-tree-dump-times gimple "builtin_expect[^\n]*, 0\);\n[^\n]*if" 2
FAIL: gcc.dg/tree-ssa/builtin-expect-2.c scan-tree-dump-times gimple "builtin_expect[^\n]*, 0\);\n[^\n]*if" 2
FAIL: gcc.dg/tree-ssa/builtin-expect-2.c scan-tree-dump-times gimple "builtin_expect[^\n]*, 0\);\n[^\n]*if" 2
FAIL: gcc.dg/tree-ssa/builtin-expect-3.c scan-tree-dump-times gimple "builtin_expect[^\n]*, 0\);\n[^\n]*if" 2
FAIL: gcc.dg/tree-ssa/builtin-expect-3.c scan-tree-dump-times gimple "builtin_expect[^\n]*, 0\);\n[^\n]*if" 2
FAIL: gcc.dg/tree-ssa/builtin-expect-4.c scan-tree-dump-times gimple "builtin_expect[^\n]*, 0\);\n[^\n]*if" 2
FAIL: gcc.dg/tree-ssa/builtin-expect-4.c scan-tree-dump-times gimple "builtin_expect[^\n]*, 0\);\n[^\n]*if" 2