Regressions on trunk at revision 239415 vs revision 239412

[H.J. Lu ia32 Core i7]

New failures:
FAIL: gcc.dg/autopar/pr46193.c scan-tree-dump-times parloops2 "parallelizing inner loop" 2

New passes:
FAIL: gcc.target/i386/avx512f-vprord-1.c scan-assembler-times vprord[ \\t]+[^{\n]*%zmm[0-9]+{%k[1-7]}(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx512f-vprord-1.c scan-assembler-times vprord[ \\t]+[^{\n]*%zmm[0-9]+{%k[1-7]}{z}(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx512f-vprord-1.c scan-assembler-times vprord[ \\t]+[^{\n]*%zmm[0-9]+(?:\n|[ \\t]+#) 1