Regressions on master at commit r11-2563 vs commit r11-2525 on Linux/x86_64

[H.J. Lu]

New failures:
FAIL: g++.dg/tree-prof/indir-call-prof.C scan-tree-dump-times optimized "Function do_not_sanitize" 1

New passes:
FAIL: gcc.dg/tree-prof/cmpsf-1.c scan-tree-dump-times dom2 "\\+" 1
FAIL: gcc.dg/tree-prof/cmpsf-1.c scan-tree-dump-times dom2 "first_gp_reg_save" 1