Regressions on trunk at revision 254526 vs revision 254519

[H.J. Lu Intel64 Core i7]

New failures:

New passes:
FAIL: gcc.dg/tree-ssa/vrp101.c scan-tree-dump optimized "<bb 2> \\[[0-9.]+%\\] \\[count: [0-9INV]*\\]:[\n\r ]*return 0;"
FAIL: gcc.dg/tree-ssa/vrp101.c scan-tree-dump optimized "<bb 2> \\[[0-9.]+%\\] \\[count: [0-9INV]*\\]:[\n\r ]*return 0;"