Regressions on master at commit r10-7163 vs commit r10-7158 on Linux/x86_64

[H.J. Lu]

New failures:

New passes:
FAIL: gcc.target/i386/pr64409.c  (test for errors, line 6)
FAIL: gcc.target/i386/pr64409.c (test for excess errors)
FAIL: gcc.target/i386/pr71958.c  (test for errors, line )
FAIL: gcc.target/i386/pr71958.c (test for excess errors)
FAIL: gcc.target/i386/pr90096.c  (test for errors, line 21)
FAIL: gcc.target/i386/pr90096.c (test for excess errors)