Regressions on trunk at revision 243972 vs revision 243961

[H.J. Lu ia32 Core i7]

New failures:

New passes:
FAIL: gcc.target/i386/mpx/memcpy-1.c   -O0  execution test
FAIL: gcc.target/i386/mpx/memcpy-1.c   -O1  execution test
FAIL: gcc.target/i386/mpx/memcpy-1.c   -O2  execution test
FAIL: gcc.target/i386/mpx/memcpy-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: gcc.target/i386/mpx/memcpy-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.target/i386/mpx/memcpy-1.c   -O3 -g  execution test
FAIL: gcc.target/i386/mpx/memcpy-1.c   -Os  execution test