Regressions on trunk at revision 231015 vs revision 230985

[H.J. Lu ia32 Core i7]

New failures:
FAIL: gcc.c-torture/execute/20050124-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (internal compiler error)
FAIL: gcc.c-torture/execute/20050124-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.c-torture/execute/20050124-1.c   -O2  (internal compiler error)
FAIL: gcc.c-torture/execute/20050124-1.c   -O2  (test for excess errors)
FAIL: gcc.c-torture/execute/20050124-1.c   -O3 -g  (internal compiler error)
FAIL: gcc.c-torture/execute/20050124-1.c   -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/execute/20050124-1.c   -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/20050124-1.c   -Os  (test for excess errors)
FAIL: gcc.dg/vect/O3-pr36098.c scan-tree-dump-times vect "vectorizing stmts using SLP" 0

New passes: