- /* Check if any ZMMH registers are changed. */
- if ((tdep->xcr0 & (X86_XSTATE_ZMM_H | X86_XSTATE_ZMM)))
- for (i = I387_ZMM0H_REGNUM (tdep);
- i < I387_ZMMENDH_REGNUM (tdep); i++)
+ for (i = I387_ST0_REGNUM (tdep);
+ i < I387_FCTRL_REGNUM (tdep); i++)
+ memset (FXSAVE_ADDR (tdep, regs, i), 0, 10);
+
+ for (i = I387_FCTRL_REGNUM (tdep);
+ i < I387_XMM0_REGNUM (tdep); i++)
+ {
+ if (i == I387_FCTRL_REGNUM (tdep))
+ store_unsigned_integer (FXSAVE_ADDR (tdep, regs, i), 2,
+ byte_order, I387_FCTRL_INIT_VAL);
+ else
+ memset (FXSAVE_ADDR (tdep, regs, i), 0,
+ regcache_register_size (regcache, i));
+ }
+ }
+ }
+
+ if (regclass == all)
+ {
+ /* Check if any PKEYS registers are changed. */
+ if ((tdep->xcr0 & X86_XSTATE_PKRU))
+ for (i = I387_PKRU_REGNUM (tdep);
+ i < I387_PKEYSEND_REGNUM (tdep); i++)
+ {
+ regcache->raw_collect (i, raw);
+ p = XSAVE_PKEYS_ADDR (tdep, regs, i);
+ if (memcmp (raw, p, 4) != 0)