Regressions on trunk at revision 250810 vs revision 250771

[H.J. Lu ia32]

New failures:

New passes:
FAIL: gcc.c-torture/execute/builtins/mempcpy-2.c execution,  -O0 
FAIL: gcc.c-torture/execute/builtins/mempcpy-2.c execution,  -O1 
FAIL: gcc.c-torture/execute/builtins/mempcpy-2.c execution,  -O2 
FAIL: gcc.c-torture/execute/builtins/mempcpy-2.c execution,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gcc.c-torture/execute/builtins/mempcpy-2.c execution,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects 
FAIL: gcc.c-torture/execute/builtins/mempcpy-2.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/builtins/mempcpy-2.c execution,  -Og -g 
FAIL: gcc.c-torture/execute/builtins/mempcpy-2.c execution,  -Os 
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution,  -O1 
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution,  -O2 
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects 
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution,  -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions 
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution,  -Og -g 
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution,  -Os 
FAIL: gcc.c-torture/execute/builtins/pr23484-chk.c execution,  -O1 
FAIL: gcc.c-torture/execute/builtins/pr23484-chk.c execution,  -O2 
FAIL: gcc.c-torture/execute/builtins/pr23484-chk.c execution,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gcc.c-torture/execute/builtins/pr23484-chk.c execution,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects 
FAIL: gcc.c-torture/execute/builtins/pr23484-chk.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/builtins/pr23484-chk.c execution,  -Og -g 
FAIL: gcc.c-torture/execute/builtins/pr23484-chk.c execution,  -Os 
FAIL: gcc.c-torture/execute/builtins/strpcpy-2.c execution,  -Os 
FAIL: gcc.dg/string-opt-1.c scan-assembler memcpy
FAIL: gcc.dg/strlenopt-14g.c execution test
FAIL: gcc.dg/strlenopt-14gf.c execution test
FAIL: gcc.dg/tree-prof/val-prof-7.c compilation,  -fprofile-generate -D_PROFILE_GENERATE (internal compiler error)