Regressions on trunk at revision 192946 vs revision 192944

[H.J. Lu x32]

New failures:
FAIL: g++.dg/tree-ssa/pr45453.C -std=gnu++11 (test for excess errors)
FAIL: g++.dg/tree-ssa/pr45453.C -std=gnu++98 (test for excess errors)
FAIL: gcc.dg/pr44974.c scan-assembler call[^\n]*_Exit

New passes: