Regressions on trunk at revision 253049 vs revision 253005

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: gcc.target/i386/pr80732.c (test for excess errors)
FAIL: gcc.target/i386/pr80732.c (test for excess errors)
FAIL: gcc.target/i386/stack-check-11.c scan-assembler-times sub[ql] 4
FAIL: gcc.target/i386/stack-check-11.c scan-assembler-times sub[ql] 4
FAIL: g++.dg/ext/attr-ifunc-1.C  -std=gnu++11 execution test
FAIL: g++.dg/ext/attr-ifunc-1.C  -std=gnu++14 execution test
FAIL: g++.dg/ext/attr-ifunc-1.C  -std=gnu++98 execution test
FAIL: g++.dg/ext/attr-ifunc-2.C  -std=gnu++11 execution test
FAIL: g++.dg/ext/attr-ifunc-2.C  -std=gnu++14 execution test
FAIL: g++.dg/ext/attr-ifunc-2.C  -std=gnu++98 execution test
FAIL: g++.dg/ext/attr-ifunc-3.C  -std=gnu++11 execution test
FAIL: g++.dg/ext/attr-ifunc-3.C  -std=gnu++14 execution test
FAIL: g++.dg/ext/attr-ifunc-3.C  -std=gnu++98 execution test
FAIL: g++.dg/ext/attr-ifunc-4.C  -std=gnu++11 execution test
FAIL: g++.dg/ext/attr-ifunc-4.C  -std=gnu++14 execution test
FAIL: g++.dg/ext/attr-ifunc-4.C  -std=gnu++98 execution test

New passes:
FAIL: gcc.target/i386/stack-check-11.c scan-assembler-times orq 3
FAIL: gcc.target/i386/stack-check-11.c scan-assembler-times subq 4
FAIL: gcc.target/i386/stack-check-11.c scan-assembler-times subq 4