validate_canon_reg (rtx *xloc, rtx insn)
{
rtx new = canon_reg (*xloc, insn);
- int insn_code;
/* If replacing pseudo with hard reg or vice versa, ensure the
insn remains valid. Likewise if the insn has MATCH_DUPs. */
- if (insn != 0 && new != 0
- && REG_P (new) && REG_P (*xloc)
- && (((REGNO (new) < FIRST_PSEUDO_REGISTER)
- != (REGNO (*xloc) < FIRST_PSEUDO_REGISTER))
- || GET_MODE (new) != GET_MODE (*xloc)
- || (insn_code = recog_memoized (insn)) < 0
- || insn_data[insn_code].n_dups > 0))
+ if (insn != 0 && new != 0)
validate_change (insn, xloc, new, 1);
else
*xloc = new;
replace each register reference inside it
with the "oldest" equivalent register.
- If INSN is nonzero and we are replacing a pseudo with a hard register
- or vice versa, validate_change is used to ensure that INSN remains valid
+ If INSN is nonzero validate_change is used to ensure that INSN remains valid
after we make our substitution. The calls are made with IN_GROUP nonzero
so apply_change_group must be called upon the outermost return from this
function (unless INSN is zero). The result of apply_change_group can
rtx dest = SET_DEST (sets[i].rtl);
rtx src = SET_SRC (sets[i].rtl);
rtx new = canon_reg (src, insn);
- int insn_code;
sets[i].orig_src = src;
- if ((REG_P (new) && REG_P (src)
- && ((REGNO (new) < FIRST_PSEUDO_REGISTER)
- != (REGNO (src) < FIRST_PSEUDO_REGISTER)))
- || (insn_code = recog_memoized (insn)) < 0
- || insn_data[insn_code].n_dups > 0)
- validate_change (insn, &SET_SRC (sets[i].rtl), new, 1);
- else
- SET_SRC (sets[i].rtl) = new;
+ validate_change (insn, &SET_SRC (sets[i].rtl), new, 1);
if (GET_CODE (dest) == ZERO_EXTRACT)
{