Regressions on trunk at revision 265827 vs revision 265783

[H.J. Lu]

New failures:

New passes:
FAIL: gcc.c-torture/execute/pr53465.c   -O1  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O1  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O2  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O2  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O3 -g  execution test
FAIL: gcc.c-torture/execute/pr53465.c   -O3 -g  execution test