Regressions on trunk at revision 263285 vs revision 263245

[H.J. Lu (ia32)]

New failures:
FAIL: gcc.target/i386/avx512vl-pr79299-1.c (test for excess errors)
FAIL: gcc.target/i386/avx512vl-pr79299-2.c (test for excess errors)

New passes:
FAIL: gcc.dg/fstack-protector-strong.c (internal compiler error)
FAIL: gcc.dg/fstack-protector-strong.c (test for excess errors)
FAIL: gcc.dg/fstack-protector-strong.c  (test for warnings, line 109)
FAIL: gcc.dg/pr71585-3.c (internal compiler error)
FAIL: gcc.dg/pr71585-3.c (test for excess errors)
FAIL: gcc.dg/pr71585.c (internal compiler error)
FAIL: gcc.dg/pr71585.c (test for excess errors)
FAIL: gcc.target/i386/pr37275.c (internal compiler error)
FAIL: gcc.target/i386/pr37275.c (test for excess errors)
FAIL: gcc.target/i386/pr47780.c (internal compiler error)
FAIL: gcc.target/i386/pr47780.c (test for excess errors)
FAIL: gcc.target/i386/pr50788.c (internal compiler error)
FAIL: gcc.target/i386/pr50788.c (test for excess errors)
FAIL: gcc.target/i386/pr68680.c (internal compiler error)
FAIL: gcc.target/i386/pr68680.c (test for excess errors)
FAIL: gcc.target/i386/stack-prot-guard.c (internal compiler error)
FAIL: gcc.target/i386/stack-prot-guard.c (test for excess errors)
FAIL: gcc.target/i386/stack-prot-sym.c (internal compiler error)
FAIL: gcc.target/i386/stack-prot-sym.c (test for excess errors)
FAIL: g++.dg/fstack-protector-strong.C  -std=gnu++11 (internal compiler error)
FAIL: g++.dg/fstack-protector-strong.C  -std=gnu++11 (test for excess errors)
FAIL: g++.dg/fstack-protector-strong.C  -std=gnu++14 (internal compiler error)
FAIL: g++.dg/fstack-protector-strong.C  -std=gnu++14 (test for excess errors)
FAIL: g++.dg/fstack-protector-strong.C  -std=gnu++98 (internal compiler error)
FAIL: g++.dg/fstack-protector-strong.C  -std=gnu++98 (test for excess errors)
FAIL: g++.dg/pr65032.C   (internal compiler error)
FAIL: g++.dg/pr65032.C   (test for excess errors)
FAIL: g++.dg/stackprotectexplicit2.C  -std=gnu++11 (internal compiler error)
FAIL: g++.dg/stackprotectexplicit2.C  -std=gnu++11 (test for excess errors)
FAIL: g++.dg/stackprotectexplicit2.C  -std=gnu++14 (internal compiler error)
FAIL: g++.dg/stackprotectexplicit2.C  -std=gnu++14 (test for excess errors)
FAIL: g++.dg/stackprotectexplicit2.C  -std=gnu++98 (internal compiler error)
FAIL: g++.dg/stackprotectexplicit2.C  -std=gnu++98 (test for excess errors)