Regressions on trunk at revision 237626 vs revision 237590

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: gcc.dg/tree-ssa/attr-hotcold-2.c scan-tree-dump-times profile_estimate "block 4, loop depth 0, count 0, freq [1-4][^0-9]" 1
FAIL: gcc.dg/tree-ssa/attr-hotcold-2.c scan-tree-dump-times profile_estimate "block 4, loop depth 0, count 0, freq [1-4][^0-9]" 1
FAIL: gcc.dg/tree-ssa/attr-hotcold-2.c scan-tree-dump-times profile_estimate "block 5, loop depth 0, count 0, freq [6-9][0-9][0-9][0-9]" 1
FAIL: gcc.dg/tree-ssa/attr-hotcold-2.c scan-tree-dump-times profile_estimate "block 5, loop depth 0, count 0, freq [6-9][0-9][0-9][0-9]" 1

New passes:
FAIL: gcc.dg/gnu89-const-expr-1.c  (test for errors, line 26)
FAIL: gcc.dg/gnu89-const-expr-1.c  (test for errors, line 26)
FAIL: gcc.dg/gnu90-const-expr-1.c  (test for errors, line 26)
FAIL: gcc.dg/gnu90-const-expr-1.c  (test for errors, line 26)
FAIL: gcc.dg/gnu99-const-expr-1.c  (test for errors, line 26)
FAIL: gcc.dg/gnu99-const-expr-1.c  (test for errors, line 26)
FAIL: gcc.dg/gnu99-static-1.c  (test for errors, line 14)
FAIL: gcc.dg/gnu99-static-1.c  (test for errors, line 14)
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"