Regressions on trunk at revision 224258 vs revision 224213

[H.J. Lu ia32]

New failures:
FAIL: gcc.dg/parloops-exit-first-loop-alt-2.c scan-tree-dump-times parloops "(?n)\\[i" 9
FAIL: gcc.dg/parloops-exit-first-loop-alt-3.c scan-tree-dump-times parloops "(?n)\\* 4" 3
FAIL: gcc.dg/parloops-exit-first-loop-alt.c scan-tree-dump-times parloops "(?n)\\[i" 9
FAIL: gcc.target/i386/pr61403.c scan-assembler blend

New passes: