Regressions on trunk at revision 237194 vs revision 237168

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/guality/pr54200.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 20 z == 3
FAIL: gcc.dg/tree-ssa/slsr-8.c scan-tree-dump-times optimized " w?\\* " 7
FAIL: gcc.dg/tree-ssa/slsr-8.c scan-tree-dump-times optimized " w?\\* " 7
ERROR: gcc.dg/tree-ssa/attr-hotcold-2.c: error executing dg-final: syntax error in target selector "profile_estimate"
ERROR: gcc.dg/tree-ssa/attr-hotcold-2.c: error executing dg-final: syntax error in target selector "profile_estimate"

New passes: