Lines Matching refs:NULL_RTX
597 and/or NEWI2PAT may be NULL_RTX. This function returns false, if the
788 set_nonzero_bits_and_sign_copies (XEXP (links, 0), NULL_RTX,
835 NULL_RTX, &new_direct_jump_p)) != 0)
872 NULL_RTX, &new_direct_jump_p)) != 0)
892 NULL_RTX, &new_direct_jump_p)) != 0)
951 next = try_combine (insn, i2mod, NULL_RTX,
953 i2mod = NULL_RTX;
1234 && (!(note = find_reg_note (insn, REG_EH_REGION, NULL_RTX))
1272 || (rtx_equal_p (src, dest) && find_reg_note (insn, REG_EQUAL, NULL_RTX))
1287 || (JUMP_P (i3) && find_reg_note (i3, REG_NON_LOCAL_GOTO, NULL_RTX))
1294 || find_reg_note (insn, REG_RETVAL, NULL_RTX)
1419 || (pred != NULL_RTX
1421 || (succ != NULL_RTX
1757 distribute_links (gen_rtx_INSN_LIST (VOIDmode, insn, NULL_RTX));
1872 || find_reg_note (i3, REG_LIBCALL, NULL_RTX)
2139 i1 = gen_rtx_INSN (VOIDmode, INSN_UID (i2), NULL_RTX, i2,
2141 XVECEXP (PATTERN (i2), 0, 1), -1, NULL_RTX,
2142 NULL_RTX);
2152 if (! can_combine_p (i2, i3, i1, NULL_RTX, &i2dest, &i2src)
2153 || (i1 && ! can_combine_p (i1, i3, NULL_RTX, i2, &i1dest, &i1src)))
2389 if ((FIND_REG_INC_NOTE (i1, NULL_RTX) != 0
2396 || !combinable_i3pat (NULL_RTX, &newpat, i1dest, NULL_RTX, 0, 0))
2410 if ((FIND_REG_INC_NOTE (i2, NULL_RTX) != 0
2412 || (i1 != 0 && FIND_REG_INC_NOTE (i1, NULL_RTX) != 0
2526 && (!(note = find_reg_note (i3, REG_EH_REGION, NULL_RTX))
2539 && (!(note = find_reg_note (i3, REG_EH_REGION, NULL_RTX))
2641 if (m_split && NEXT_INSN (m_split) == NULL_RTX)
2648 else if (m_split && NEXT_INSN (NEXT_INSN (m_split)) == NULL_RTX
2723 newi2pat = NULL_RTX;
3027 undobuf.other_insn, NULL_RTX, NULL_RTX, NULL_RTX);
3229 move_deaths (newi2pat, NULL_RTX, INSN_CUID (i1), i2, &midnotes);
3233 move_deaths (newpat, NULL_RTX, i1 ? INSN_CUID (i1) : INSN_CUID (i2),
3238 distribute_notes (i3notes, i3, i3, newi2pat ? i2 : NULL_RTX,
3241 distribute_notes (i2notes, i2, i3, newi2pat ? i2 : NULL_RTX,
3244 distribute_notes (i1notes, i1, i3, newi2pat ? i2 : NULL_RTX,
3247 distribute_notes (midnotes, NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
3261 distribute_notes (new_i2_notes, i2, i2, NULL_RTX, NULL_RTX, NULL_RTX);
3270 distribute_notes (new_i3_notes, i3, i3, NULL_RTX, NULL_RTX, NULL_RTX);
3287 NULL_RTX),
3288 NULL_RTX, i2, NULL_RTX, elim_i2, elim_i1);
3291 NULL_RTX),
3292 NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
3302 distribute_notes (gen_rtx_EXPR_LIST (REG_DEAD, i2dest, NULL_RTX),
3303 NULL_RTX, i2, NULL_RTX, NULL_RTX, NULL_RTX);
3305 distribute_notes (gen_rtx_EXPR_LIST (REG_DEAD, i2dest, NULL_RTX),
3306 NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
3307 NULL_RTX, NULL_RTX);
3316 distribute_notes (gen_rtx_EXPR_LIST (REG_DEAD, i1dest, NULL_RTX),
3317 NULL_RTX, i2, NULL_RTX, NULL_RTX, NULL_RTX);
3319 distribute_notes (gen_rtx_EXPR_LIST (REG_DEAD, i1dest, NULL_RTX),
3320 NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
3321 NULL_RTX, NULL_RTX);
3396 if ((temp = next_nonnote_insn (i3)) == NULL_RTX
3401 if (undobuf.other_insn != NULL_RTX
3407 if ((temp = next_nonnote_insn (undobuf.other_insn)) == NULL_RTX
3498 rtx inner = NULL_RTX;
3546 && NEXT_INSN (seq) != NULL_RTX
3547 && NEXT_INSN (NEXT_INSN (seq)) == NULL_RTX
3692 pos, NULL_RTX, 1, 1, 0, 0);
4447 return simplify_shift_const (NULL_RTX, LSHIFTRT, mode, XEXP (temp, 0),
4463 (NULL_RTX, ASHIFTRT, mode,
4464 simplify_shift_const (NULL_RTX, ASHIFT, mode, temp,
4560 (NULL_RTX, ASHIFTRT, mode,
4561 simplify_shift_const (NULL_RTX, ASHIFT, mode,
4575 return simplify_shift_const (NULL_RTX, ASHIFTRT, mode,
4576 simplify_shift_const (NULL_RTX, ASHIFT, mode,
4609 return simplify_and_const_int (NULL_RTX, mode, XEXP (x, 0),
4647 return simplify_shift_const (NULL_RTX, LSHIFTRT, mode, XEXP (x, 0), i);
4788 x = simplify_shift_const (NULL_RTX, ASHIFT, mode,
5052 rtx z = 0, c1 = NULL_RTX;
5171 simplify_shift_const (NULL_RTX, ASHIFT, mode,
5256 if (new != NULL_RTX)
5803 tem = simplify_shift_const (NULL_RTX, ASHIFT, mode,
5805 tem = simplify_shift_const (NULL_RTX, unsignedp ? LSHIFTRT : ASHIFTRT,
5809 tem = simplify_and_const_int (NULL_RTX, GET_MODE (x),
5810 simplify_shift_const (NULL_RTX, LSHIFTRT,
5976 The result is an RTX for the extraction or NULL_RTX if the target
6106 return NULL_RTX;
6394 return simplify_shift_const (NULL_RTX, ASHIFT, mode, XEXP (x, 0),
6538 NULL_RTX, i, 1, 0, in_code == COMPARE);
6571 0, NULL_RTX, i, 1, 0, in_code == COMPARE);
6580 i, NULL_RTX, 1, 1, 0, 1);
6615 NULL_RTX, mode_width - INTVAL (rhs),
6632 0, NULL_RTX, mode_width - INTVAL (rhs),
7247 x = simplify_shift_const (NULL_RTX, LSHIFTRT, GET_MODE (x),
7256 (NULL_RTX, LSHIFTRT, GET_MODE (x), XEXP (x, 0),
7921 assign = make_extraction (VOIDmode, dest, pos, NULL_RTX, len, 1, 1, 0);
7933 src = canon_reg_for_combine (simplify_shift_const (NULL_RTX, LSHIFTRT,
8116 return NULL_RTX;
8153 return NULL_RTX;
8159 (const_int CONSTOP)). Otherwise, return NULL_RTX. */
8173 return NULL_RTX;
8213 return simplify_shift_const (NULL_RTX, ASHIFT, mode, XEXP (varop, 0), i);
8227 simplify_and_const_int (NULL_RTX,
8231 simplify_and_const_int (NULL_RTX,
8245 o0 = simplify_and_const_int (NULL_RTX, mode, XEXP (varop, 0), constop);
8246 o1 = simplify_and_const_int (NULL_RTX, mode, XEXP (varop, 1), constop);
8255 if (varop == NULL_RTX || GET_CODE (varop) == CLOBBER)
8256 return NULL_RTX;
8263 return NULL_RTX;
8568 The result of the shift is RESULT_MODE. Return NULL_RTX if we cannot
8602 return NULL_RTX;
8613 return NULL_RTX;
8839 varop = simplify_and_const_int (NULL_RTX, result_mode,
8841 varop = simplify_shift_const (NULL_RTX, ASHIFT, result_mode,
9030 rtx lhs = simplify_shift_const (NULL_RTX, code, shift_mode,
9032 rtx rhs = simplify_shift_const (NULL_RTX, code, shift_mode,
9246 return NULL_RTX;
9250 if (varop == NULL_RTX || GET_CODE (varop) == CLOBBER)
9251 return NULL_RTX;
9261 x = NULL_RTX;
9263 if (x == NULL_RTX)
9269 x = simplify_and_const_int (NULL_RTX, shift_mode, x,
9286 x = simplify_and_const_int (NULL_RTX, result_mode, x, outer_const);
10069 op0 = simplify_and_const_int (NULL_RTX, mode, XEXP (op0, 0),
10335 (NULL_RTX, mode, gen_rtx_LSHIFTRT (mode,
10456 (NULL_RTX, mode, XEXP (XEXP (op0, 0), 0), (HOST_WIDE_INT) 1);
10480 (NULL_RTX, mode,
10521 op0 = simplify_and_const_int (NULL_RTX, mode, XEXP (op0, 0),
10537 op0 = simplify_and_const_int (NULL_RTX, mode, XEXP (op0, 0),
10549 op0 = simplify_shift_const (NULL_RTX, LSHIFTRT, mode,
11027 record_value_for_reg (dest, NULL_RTX, NULL_RTX);
11047 record_value_for_reg (dest, record_dead_insn, NULL_RTX);
11086 record_value_for_reg (XEXP (link, 0), insn, NULL_RTX);
11108 note_stores (PATTERN (insn), record_dead_and_set_regs_1, NULL_RTX);
12081 || ((tem = find_reg_note (i3, REG_EQUAL, NULL_RTX))
12088 || ((tem = find_reg_note (i2, REG_EQUAL, NULL_RTX))
12145 tem = find_reg_note (XEXP (note, 0), REG_LIBCALL, NULL_RTX);
12165 tem = find_reg_note (XEXP (note, 0), REG_RETVAL, NULL_RTX);
12250 rtx cc0_setter = NULL_RTX;
12287 distribute_notes (old_notes, tem, tem, NULL_RTX,
12288 NULL_RTX, NULL_RTX);
12302 cc0_setter, NULL_RTX,
12303 NULL_RTX, NULL_RTX);
12435 = gen_rtx_EXPR_LIST (REG_DEAD, piece, NULL_RTX);
12438 NULL_RTX, NULL_RTX, NULL_RTX);
12609 if (x != NULL_RTX