Regressions on trunk at revision 155099 vs revision 155085

[H.J. Lu Intel64]

New failures:

New passes:
FAIL: gcc.c-torture/execute/pr42269-2.c execution,  -O1 
FAIL: gcc.c-torture/execute/pr42269-2.c execution,  -O2 
FAIL: gcc.c-torture/execute/pr42269-2.c execution,  -O2 -flto 
FAIL: gcc.c-torture/execute/pr42269-2.c execution,  -O2 -fwhopr 
FAIL: gcc.c-torture/execute/pr42269-2.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/pr42269-2.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/pr42269-2.c execution,  -Os