Regressions on master at commit r11-1190 vs commit r11-1138 on Linux/i686

[H.J. Lu]

New failures:
FAIL: gcc.dg/builtin-stringop-chk-5.c memcpy into allocated (test for warnings, line 136)
FAIL: gcc.dg/builtin-stringop-chk-5.c memcpy into allocated (test for warnings, line 139)
FAIL: gcc.dg/builtin-stringop-chk-5.c memcpy into allocated (test for warnings, line 142)
FAIL: gcc.dg/builtin-stringop-chk-5.c memcpy into allocated (test for warnings, line 145)
FAIL: gcc.dg/builtin-stringop-chk-5.c memcpy into allocated (test for warnings, line 148)
FAIL: gcc.dg/builtin-stringop-chk-5.c memcpy into allocated (test for warnings, line 151)
FAIL: gcc.dg/builtin-stringop-chk-5.c (test for excess errors)

New passes: