Regressions on trunk at revision 248474 vs revision 248462

[H.J. Lu ia32 -fpic]

New failures:

New passes:
FAIL: gcc.dg/overflow-warn-9.c  (test for warnings, line 59)
FAIL: gcc.dg/overflow-warn-9.c  (test for warnings, line 60)
FAIL: gcc.dg/overflow-warn-9.c  (test for warnings, line 62)
FAIL: gcc.dg/overflow-warn-9.c (test for excess errors)
FAIL: gcc.dg/pr59963-2.c  (test for warnings, line 16)
FAIL: gcc.dg/pr59963-2.c (test for excess errors)
FAIL: gcc.dg/pr60114.c  (test for warnings, line 12)
FAIL: gcc.dg/pr60114.c  (test for warnings, line 13)
FAIL: gcc.dg/pr60114.c  (test for warnings, line 14)
FAIL: gcc.dg/pr60114.c  (test for warnings, line 23)
FAIL: gcc.dg/pr60114.c  (test for warnings, line 24)
FAIL: gcc.dg/pr60114.c (test for excess errors)