Regressions on trunk at revision 187079 vs revision 187074

[H.J. Lu Intel64 LTO/FDO]

New failures:
FAIL: gcc.dg/pch/save-temps-1.c  -O0 -g assembly comparison

New passes:
FAIL: gcc.c-torture/execute/vector-compare-1.c compilation,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/vector-compare-1.c compilation,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/vector-compare-1.c compilation,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.c-torture/execute/vector-compare-1.c compilation,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.c-torture/execute/vector-compare-1.c compilation,  -O3 -fomit-frame-pointer -funroll-loops 
FAIL: gcc.c-torture/execute/vector-compare-1.c compilation,  -O3 -fomit-frame-pointer -funroll-loops 
FAIL: gcc.c-torture/execute/vector-compare-1.c compilation,  -O3 -g 
FAIL: gcc.c-torture/execute/vector-compare-1.c compilation,  -O3 -g 
FAIL: gcc.dg/pch/save-temps-1.c   -O3 -g  assembly comparison