int
offline_instru_t::instrument_memref(void *drcontext, instrlist_t *ilist, instr_t *where,
reg_id_t reg_ptr, reg_id_t reg_tmp, int adjust,
opnd_t ref, bool write, dr_pred_type_t pred)
{
// Post-processor distinguishes read, write, prefetch, flush, and finds size.
instr_t *label = INSTR_CREATE_label(drcontext);
MINSERT(ilist, where, label);
insert_save_addr(drcontext, ilist, where, reg_ptr, reg_tmp, adjust, ref);
#ifdef ARM // X86 does not support general predicated execution
if (pred != DR_PRED_NONE) {
instr_t *instr;
for (instr = instr_get_prev(where);
instr != label;
instr = instr_get_prev(instr)) {
DR_ASSERT(!instr_is_predicated(instr));
instr_set_predicate(instr, pred);
}
}
#endif
return (adjust + sizeof(offline_entry_t));
}
static inline void
check_translation(instrlist_t *ilist, instr_t *inst)
{
if (ilist->translation_target != NULL && instr_get_translation(inst) == NULL) {
instr_set_translation(inst, ilist->translation_target);
}
if (instrlist_get_our_mangling(ilist))
instr_set_our_mangling(inst, true);
#if defined(CLIENT_INTERFACE) && defined(ARM)
if (instr_is_meta(inst)) {
dr_pred_type_t auto_pred = ilist->auto_pred;
if (instr_predicate_is_cond(auto_pred)) {
CLIENT_ASSERT(!instr_is_cti(inst), "auto-predication does not support cti's");
CLIENT_ASSERT(
!TESTANY(EFLAGS_WRITE_NZCV,
instr_get_arith_flags(inst, DR_QUERY_INCLUDE_COND_SRCS)),
"cannot auto predicate a meta-inst that writes to NZCV");
if (!instr_is_predicated(inst))
instr_set_predicate(inst, auto_pred);
}
}
#endif
}
