Regressions on trunk at revision 224263 vs revision 224258

[H.J. Lu ia32 -fpic]

New failures:
FAIL: c-c++-common/dfp/func-vararg-dfp.c execution test
FAIL: c-c++-common/dfp/func-vararg-mixed-2.c execution test
FAIL: c-c++-common/dfp/func-vararg-mixed.c execution test
FAIL: c-c++-common/torture/vector-shift1.c   -O0  execution test
FAIL: c-c++-common/torture/vector-shift1.c   -O0  execution test
FAIL: gcc.c-torture/execute/ieee/pr50310.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/ieee/pr50310.c execution,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.c-torture/execute/ieee/pr50310.c execution,  -O3 -fomit-frame-pointer -funroll-loops 
FAIL: gcc.c-torture/execute/ieee/pr50310.c execution,  -O3 -g 
FAIL: gcc.dg/compat/scalar-return-dfp c_compat_x_tst.o-c_compat_y_tst.o execute 
FAIL: gcc.dg/torture/pr57748-2.c   -O0  execution test
FAIL: gcc.dg/torture/pr57748-3.c   -O0  execution test
FAIL: gcc.dg/torture/pr57748-4.c   -O0  execution test

New passes:
FAIL: g++.dg/cilk-plus/CK/fib-opr-overload.cc  -g -fcilkplus execution test
FAIL: gcc.dg/parloops-exit-first-loop-alt-2.c scan-tree-dump-times parloops "(?n)\\[i" 9
FAIL: gcc.dg/parloops-exit-first-loop-alt-3.c scan-tree-dump-times parloops "(?n)\\* 4" 3
FAIL: gcc.dg/parloops-exit-first-loop-alt.c scan-tree-dump-times parloops "(?n)\\[i" 9