Regressions on trunk at revision 204263 vs revision 204252

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/guality/pr54693-2.c  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  line 21 x == 10 - i
FAIL: gcc.dg/guality/pr54693-2.c  -O3 -fomit-frame-pointer -funroll-loops  line 21 x == 10 - i

New passes:
FAIL: 20_util/default_delete/48631_neg.cc (test for excess errors)
FAIL: 20_util/default_delete/48631_neg.cc (test for excess errors)
FAIL: gcc.dg/guality/pr54693-2.c  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  line 21 i == v + 1
FAIL: gcc.dg/guality/pr54693-2.c  -O3 -fomit-frame-pointer -funroll-loops  line 21 i == v + 1
FAIL: gcc.dg/ira-shrinkwrap-prep-1.c scan-rtl-dump ira "Split live-range of register"
FAIL: gcc.dg/ira-shrinkwrap-prep-1.c scan-rtl-dump ira "Will split live ranges of parameters"
FAIL: gcc.dg/ira-shrinkwrap-prep-1.c scan-rtl-dump pro_and_epilogue "Performing shrink-wrapping"
FAIL: gcc.dg/ira-shrinkwrap-prep-2.c scan-rtl-dump ira "Split live-range of register"
FAIL: gcc.dg/ira-shrinkwrap-prep-2.c scan-rtl-dump ira "Will split live ranges of parameters"
FAIL: gcc.dg/ira-shrinkwrap-prep-2.c scan-rtl-dump pro_and_epilogue "Performing shrink-wrapping"
FAIL: gcc.dg/pr10474.c scan-rtl-dump pro_and_epilogue "Performing shrink-wrapping"