Regressions on releases/gcc-12 at commit r12-10328 vs commit r12-10314 on Linux/x86_64

[H.J. Lu]

Regressions on releases/gcc-12 at commit r12-10328 vs commit r12-10314 on Linux/x86_64
New failures:
FAIL: gcc.dg/lto/save-temps c_lto_save-temps_0.o-c_lto_save-temps_0.o link,  -O -flto -save-temps
FAIL: gcc.dg/vect/vect-bic-bitmask-3.c -flto -ffat-lto-objects (test for excess errors)

New passes:
FAIL: gcc.dg/vect/vect-bic-bitmask-2.c -flto -ffat-lto-objects (test for excess errors)