Regressions on trunk at revision 244502 vs revision 244486

[H.J. Lu x32 -fpic]

New failures:
FAIL: gcc.dg/attr-alloc_size-4.c argument 2 (test for warnings, line 200)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 143)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 146)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 150)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 187)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 200)

New passes:
FAIL: gcc.dg/attr-alloc_size-4.c argument 2 (test for warnings, line 198)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 142)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 144)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 148)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 185)
FAIL: gcc.dg/attr-alloc_size-4.c  (test for warnings, line 196)
FAIL: gcc.dg/format/pr78304.c   -DWIDE   (test for warnings, line 9)
FAIL: gcc.dg/format/pr78304.c     (test for warnings, line 9)
FAIL: tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc  (test for errors, line 37)
FAIL: tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc  (test for errors, line 593)
FAIL: tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc (test for excess errors)