Regressions on trunk at revision 243171 vs revision 243152

[H.J. Lu]

New failures:
FAIL: gcc.dg/tree-prof/bb-reorg.c execution,    -g
FAIL: gcc.dg/tree-prof/pr45354.c execution,    -g
FAIL: gcc.dg/tree-prof/time-profiler-1.c execution,    -g
FAIL: gcc.dg/tree-prof/time-profiler-3.c execution,    -g
FAIL: gcc.dg/tree-prof/val-prof-1.c execution,    -g
FAIL: g++.dg/tree-prof/reorder.C execution,    -g

New passes:
FAIL: gcc.dg/tree-prof/20041218-1.c execution,    -g
FAIL: gcc.dg/tree-prof/merge_block.c scan-tree-dump optimized "bit_xor_expr"
FAIL: gcc.dg/tree-prof/merge_block.c scan-tree-dump-times optimized "count =" 1