Regressions on trunk at revision 218380 vs revision 218351

[Intel Automatic Testing System [ia32 Core AVX2]]

New failures:
FAIL: gcc.c-torture/execute/pr37573.c   -O3 -fomit-frame-pointer  execution test
FAIL: gcc.c-torture/execute/pr37573.c   -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: gcc.c-torture/execute/pr37573.c   -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: gcc.c-torture/execute/pr37573.c   -O3 -g  execution test
FAIL: gcc.dg/vect/vect-mask-load-1.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/vect-multitypes-11.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/vect-multitypes-12.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/vect-strided-u32-i4.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/vect-widen-mult-const-u16.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/vect-widen-shift-u16.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/vect-widen-shift-u8.c -flto -ffat-lto-objects execution test

New passes: