Regressions on trunk at revision 265710 vs revision 265655

[H.J. Lu (Intel64 Core i7)]

New failures:
# FAIL:  0
# FAIL:  0
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
# XFAIL: 0
# XFAIL: 0

New passes:
FAIL: g++.dg/pr80481.C  -std=gnu++14  scan-assembler-not vmovaps
FAIL: g++.dg/pr80481.C  -std=gnu++17  scan-assembler-not vmovaps
FAIL: g++.dg/pr80481.C  -std=gnu++98  scan-assembler-not vmovaps