Regressions on trunk at revision 162270 vs revision 162269

[H.J. Lu Intel64]

New failures:
FAIL: gcc.c-torture/execute/nest-stdar-1.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/nest-stdar-1.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -O1 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -O2 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -O2 -flto 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -O2 -fwhopr 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -O3 -fomit-frame-pointer -funroll-loops 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/pr44575.c execution,  -Os 
FAIL: gcc.c-torture/execute/stdarg-1.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/stdarg-1.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -O1 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -O2 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -O2 -flto 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -O2 -fwhopr 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -O3 -fomit-frame-pointer -funroll-loops 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/stdarg-3.c execution,  -Os 
FAIL: gcc.c-torture/execute/stdarg-4.c execution,  -O1 
FAIL: gcc.c-torture/execute/stdarg-4.c execution,  -O2 
FAIL: gcc.c-torture/execute/stdarg-4.c execution,  -O2 -flto 
FAIL: gcc.c-torture/execute/stdarg-4.c execution,  -O2 -fwhopr 
FAIL: gcc.c-torture/execute/stdarg-4.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/stdarg-4.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/stdarg-4.c execution,  -Os 
FAIL: gcc.c-torture/execute/va-arg-26.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/va-arg-26.c execution,  -O3 -g 
FAIL: gcc.target/i386/amd64-abi-5.c execution test
FAIL: gcc.target/i386/vararg-3.c execution test
FAIL: gcc.target/i386/vararg-7.c execution test

New passes: