Regressions on trunk at revision 238991 vs revision 238989

[H.J. Lu ia32 Core i7]

New failures:
FAIL: gcc.target/i386/mpx/pr66048.cc   -O0  (internal compiler error)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O0  (test for excess errors)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O1  (internal compiler error)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O1  (test for excess errors)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (internal compiler error)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O2  (internal compiler error)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O2  (test for excess errors)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O3 -g  (internal compiler error)
FAIL: gcc.target/i386/mpx/pr66048.cc   -O3 -g  (test for excess errors)
FAIL: gcc.target/i386/mpx/pr66048.cc   -Os  (internal compiler error)
FAIL: gcc.target/i386/mpx/pr66048.cc   -Os  (test for excess errors)

New passes: