Regressions on trunk at revision 246152 vs revision 246138

[H.J. Lu x32 -fpic]

New failures:
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 116)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 122)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 123)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 135)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 136)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 152)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 162)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 164)

New passes:
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 145)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 147)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-15.c  (test for warnings, line 149)