Regressions on 6 at revision 252868 vs revision 251947

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/asan/pr81224.c   -O0  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O0  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O0  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O0  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O1  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O1  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O1  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O1  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O2  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O2  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O2  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O2  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O3 -g  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O3 -g  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -O3 -g  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -O3 -g  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -Os  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -Os  (internal compiler error)
FAIL: gcc.dg/asan/pr81224.c   -Os  (test for excess errors)
FAIL: gcc.dg/asan/pr81224.c   -Os  (test for excess errors)
FAIL: gcc.target/i386/pr69255-2.c (test for excess errors)
FAIL: gcc.target/i386/pr69255-2.c (test for excess errors)
FAIL: gcc.target/i386/pr69255-3.c (test for excess errors)
FAIL: gcc.target/i386/pr69255-3.c (test for excess errors)

New passes: