diff options
| -rw-r--r-- | gcc/ChangeLog | 30 | ||||
| -rw-r--r-- | gcc/alias.c | 2 | ||||
| -rw-r--r-- | gcc/combine.c | 7 | ||||
| -rw-r--r-- | gcc/config/alpha/alpha.c | 3 | ||||
| -rw-r--r-- | gcc/config/arm/arm.md | 10 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.c | 2 | ||||
| -rw-r--r-- | gcc/config/m88k/m88k.c | 5 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 1 | ||||
| -rw-r--r-- | gcc/cse.c | 1 | ||||
| -rw-r--r-- | gcc/emit-rtl.c | 6 | ||||
| -rw-r--r-- | gcc/explow.c | 8 | ||||
| -rw-r--r-- | gcc/expr.c | 6 | ||||
| -rw-r--r-- | gcc/final.c | 2 | ||||
| -rw-r--r-- | gcc/function.c | 3 | ||||
| -rw-r--r-- | gcc/integrate.c | 2 | ||||
| -rw-r--r-- | gcc/optabs.c | 2 | ||||
| -rw-r--r-- | gcc/recog.c | 2 | ||||
| -rw-r--r-- | gcc/rtl.h | 7 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 4 | ||||
| -rw-r--r-- | gcc/stmt.c | 1 |
20 files changed, 41 insertions, 63 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7530fd8..bb92e0d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,33 @@ +Thu May 4 09:45:12 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + + * rtl.h (MEM_COPY_ATTRIBUTES): Also copy RTX_UNCHANGING_P and + MEM_ALIAS_SET. + * alias.c (canon_rtx): Don't copy RTX_UNCHANGING_P or MEM_ALIAS_SET + when calling MEM_COPY_ATTRIBUTES. + * emit-rtl.c (operand_subword, change_address): Likewise. + * explow.c (stabilize): Likewise. + * expr.c (protect_from_queue, emit_move_insn_1): Likewise. + * integrate.c (copy_rtx_and_substitute): Likewise. + * combine.c (combine_simplify_rtx): Don't copy RTX_UNCHANGING_P + when calling MEM_COPY_ATTRIBUTES. + (make_extraction, simplify_shift_const, gen_lowpart_for_combine): + Likewise. + * cse.c (gen_lowpart_if_possible): Likewise. + * function.c (fixup_var_refs_1, purge_addressof_1): Likewise. + * optabs.c (gen_move_insn): Likewise. + * recog.c (validate_replace_rtx_1): Likewise. + * simplify-rtx.c (add_mem_for_addr): Likewise. + * stmt.c (expand_anon_union_decl): Likewise. + * config/arm/arm.md: Likewise. + * config/h8300/h7300.c (fix_bit_operand): Likewise. + * config/m88k/m88k.c (legitimize_address, block_move_loop): Likewise. + (block_move_no_loop, block_move_sequence): Likewise. + * config/rs6000/rs6000.c (expand_block_move_mem): Likewise. + * config/alpha/alpha.c (get_aligned_mem): Likewise. + Clear MEM_ALIAS_SET. + * final.c (alter_subreg): Don't copy MEM_ALIAS_SET when calling + MEM_COPY_ATTRIBUTES. + 2000-05-03 Robert Lipe <robertlipe@usa.net> * configure.in (i[34567]86-*-isc*) [tmake_file]: Add t-i386bare diff --git a/gcc/alias.c b/gcc/alias.c index fb493f8..e29c57e 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -586,9 +586,7 @@ canon_rtx (x) { rtx new = gen_rtx_MEM (GET_MODE (x), addr); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (x); MEM_COPY_ATTRIBUTES (new, x); - MEM_ALIAS_SET (new) = MEM_ALIAS_SET (x); x = new; } } diff --git a/gcc/combine.c b/gcc/combine.c index 46da6a7..6c14228 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -3740,7 +3740,6 @@ combine_simplify_rtx (x, op0_mode, last, in_dest) plus_constant (XEXP (inner, 0), (SUBREG_WORD (x) * UNITS_PER_WORD + endian_offset))); - RTX_UNCHANGING_P (x) = RTX_UNCHANGING_P (inner); MEM_COPY_ATTRIBUTES (x, inner); return x; } @@ -5922,7 +5921,6 @@ make_extraction (mode, inner, pos, pos_rtx, len, offset = pos / BITS_PER_UNIT; new = gen_rtx_MEM (tmode, plus_constant (XEXP (inner, 0), offset)); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (inner); MEM_COPY_ATTRIBUTES (new, inner); } else if (GET_CODE (inner) == REG) @@ -6147,7 +6145,7 @@ make_extraction (mode, inner, pos, pos_rtx, len, { rtx newmem = gen_rtx_MEM (wanted_inner_mode, plus_constant (XEXP (inner, 0), offset)); - RTX_UNCHANGING_P (newmem) = RTX_UNCHANGING_P (inner); + MEM_COPY_ATTRIBUTES (newmem, inner); inner = newmem; } @@ -8914,7 +8912,7 @@ simplify_shift_const (x, code, result_mode, varop, input_count) new = gen_rtx_MEM (tmode, plus_constant (XEXP (varop, 0), count / BITS_PER_UNIT)); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (varop); + MEM_COPY_ATTRIBUTES (new, varop); varop = gen_rtx_combine (code == ASHIFTRT ? SIGN_EXTEND : ZERO_EXTEND, mode, new); @@ -9669,7 +9667,6 @@ gen_lowpart_for_combine (mode, x) - MIN (UNITS_PER_WORD, GET_MODE_SIZE (GET_MODE (x)))); } new = gen_rtx_MEM (mode, plus_constant (XEXP (x, 0), offset)); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (x); MEM_COPY_ATTRIBUTES (new, x); return new; } diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 4ea6995..89a08cfe 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -1033,11 +1033,10 @@ get_aligned_mem (ref, paligned_mem, pbitnum) *paligned_mem = gen_rtx_MEM (SImode, plus_constant (base, offset & ~3)); MEM_COPY_ATTRIBUTES (*paligned_mem, ref); - RTX_UNCHANGING_P (*paligned_mem) = RTX_UNCHANGING_P (ref); /* Sadly, we cannot use alias sets here because we may overlap other data in a different alias set. */ - /* MEM_ALIAS_SET (*paligned_mem) = MEM_ALIAS_SET (ref); */ + MEM_ALIAS_SET (*paligned_mem) = 0; *pbitnum = GEN_INT ((offset & 3) * 8); } diff --git a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md index f83c0e2..0862668 100644 --- a/gcc/config/arm/arm.md +++ b/gcc/config/arm/arm.md @@ -3309,10 +3309,8 @@ mem1 = gen_rtx_MEM (QImode, addr); MEM_COPY_ATTRIBUTES (mem1, operands[1]); - RTX_UNCHANGING_P (mem1) = RTX_UNCHANGING_P (operands[1]); mem2 = gen_rtx_MEM (QImode, plus_constant (addr, 1)); MEM_COPY_ATTRIBUTES (mem2, operands[1]); - RTX_UNCHANGING_P (mem2) = RTX_UNCHANGING_P (operands[1]); operands[0] = gen_lowpart (SImode, operands[0]); operands[1] = mem1; operands[2] = gen_reg_rtx (SImode); @@ -3427,7 +3425,6 @@ operands[3] = gen_rtx_REG (SImode, REGNO (operands[0])); operands[2] = gen_rtx_MEM (QImode, operands[3]); MEM_COPY_ATTRIBUTES (operands[2], operands[1]); - RTX_UNCHANGING_P (operands[2]) = RTX_UNCHANGING_P (operands[1]); operands[1] = XEXP (operands[1], 0); if (GET_CODE (operands[1]) == PLUS && GET_CODE (XEXP (operands[1], 1)) == CONST_INT @@ -3522,7 +3519,6 @@ operands[2] = gen_rtx_MEM (QImode, operands[0]); MEM_COPY_ATTRIBUTES (operands[2], operands[1]); - RTX_UNCHANGING_P (operands[2]) = RTX_UNCHANGING_P (operands[1]); operands[1] = XEXP (operands[1], 0); if (GET_CODE (operands[1]) == PLUS && GET_CODE (XEXP (operands[1], 1)) == CONST_INT @@ -4201,7 +4197,6 @@ new = gen_rtx_MEM (SImode, plus_constant (base, new_offset)); MEM_COPY_ATTRIBUTES (new, operands[1]); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (operands[1]); emit_insn (gen_movsi (reg, new)); if (((INTVAL (offset) & 2) != 0) ^ (BYTES_BIG_ENDIAN ? 1 : 0)) @@ -4237,15 +4232,12 @@ new = gen_rtx_MEM (SImode, plus_constant (base, new_offset)); MEM_COPY_ATTRIBUTES (new, operands[1]); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (operands[1]); emit_insn (gen_movsi (reg, new)); } else { new = gen_rtx_MEM (SImode, XEXP (operands[1], 0)); MEM_COPY_ATTRIBUTES (new, operands[1]); - RTX_UNCHANGING_P (new) - = RTX_UNCHANGING_P (operands[1]); emit_insn (gen_rotated_loadsi (reg, new)); } @@ -4393,10 +4385,8 @@ mem1 = gen_rtx_MEM (QImode, addr); MEM_COPY_ATTRIBUTES (mem1, operands[1]); - RTX_UNCHANGING_P (mem1) = RTX_UNCHANGING_P (operands[1]); mem2 = gen_rtx_MEM (QImode, plus_constant (addr, 1)); MEM_COPY_ATTRIBUTES (mem2, operands[1]); - RTX_UNCHANGING_P (mem2) = RTX_UNCHANGING_P (operands[1]); operands[0] = gen_lowpart (SImode, operands[0]); operands[1] = mem1; operands[2] = gen_reg_rtx (SImode); diff --git a/gcc/config/h8300/h8300.c b/gcc/config/h8300/h8300.c index 87b7f19..ee4d0ad 100644 --- a/gcc/config/h8300/h8300.c +++ b/gcc/config/h8300/h8300.c @@ -2814,7 +2814,6 @@ fix_bit_operand (operands, what, type) rtx mem = gen_rtx_MEM (GET_MODE (operands[0]), copy_to_mode_reg (Pmode, XEXP (operands[0], 0))); - RTX_UNCHANGING_P (mem) = RTX_UNCHANGING_P (operands[0]); MEM_COPY_ATTRIBUTES (mem, operands[0]); operands[0] = mem; } @@ -2824,7 +2823,6 @@ fix_bit_operand (operands, what, type) rtx mem = gen_rtx_MEM (GET_MODE (operands[1]), copy_to_mode_reg (Pmode, XEXP (operands[1], 0))); - RTX_UNCHANGING_P (mem) = RTX_UNCHANGING_P (operands[1]); MEM_COPY_ATTRIBUTES (mem, operands[0]); operands[1] = mem; } diff --git a/gcc/config/m88k/m88k.c b/gcc/config/m88k/m88k.c index 604441a..555d49f 100644 --- a/gcc/config/m88k/m88k.c +++ b/gcc/config/m88k/m88k.c @@ -402,7 +402,6 @@ legitimize_address (pic, orig, reg, scratch) && GET_CODE (orig) == MEM) { new = gen_rtx_MEM (GET_MODE (orig), new); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (orig); MEM_COPY_ATTRIBUTES (new, orig); } return new; @@ -602,7 +601,6 @@ block_move_loop (dest, dest_mem, src, src_mem, size, align) gen_rtx_PLUS (Pmode, gen_rtx_REG (Pmode, 3), offset_rtx)); - RTX_UNCHANGING_P (value_rtx) = RTX_UNCHANGING_P (src_mem); MEM_COPY_ATTRIBUTES (value_rtx, src_mem); emit_insn (gen_call_movstrsi_loop @@ -659,7 +657,6 @@ block_move_no_loop (dest, dest_mem, src, src_mem, size, align) gen_rtx_REG (Pmode, 3), offset_rtx)); - RTX_UNCHANGING_P (value_rtx) = RTX_UNCHANGING_P (src_mem); MEM_COPY_ATTRIBUTES (value_rtx, src_mem); value_reg = ((((most - (size - remainder)) / align) & 1) == 0 @@ -730,7 +727,6 @@ block_move_sequence (dest, dest_mem, src, src_mem, size, align, offset) srcp = gen_rtx_MEM (MEM_IN_STRUCT_P (src_mem) ? mode[next] : BLKmode, plus_constant (src, offset_ld)); - RTX_UNCHANGING_P (srcp) = RTX_UNCHANGING_P (src_mem); MEM_COPY_ATTRIBUTES (srcp, src_mem); emit_insn (gen_rtx_SET (VOIDmode, temp[next], srcp)); offset_ld += amount[next]; @@ -744,7 +740,6 @@ block_move_sequence (dest, dest_mem, src, src_mem, size, align, offset) = gen_rtx_MEM (MEM_IN_STRUCT_P (dest_mem) ? mode[phase] : BLKmode, plus_constant (dest, offset_st)); - RTX_UNCHANGING_P (dstp) = RTX_UNCHANGING_P (dest_mem); MEM_COPY_ATTRIBUTES (dstp, dest_mem); emit_insn (gen_rtx_SET (VOIDmode, dstp, temp[phase])); offset_st += amount[phase]; diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 82ad6ed..215b812 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -2286,7 +2286,6 @@ expand_block_move_mem (mode, addr, orig_mem) { rtx mem = gen_rtx_MEM (mode, addr); - RTX_UNCHANGING_P (mem) = RTX_UNCHANGING_P (orig_mem); MEM_COPY_ATTRIBUTES (mem, orig_mem); #ifdef MEM_UNALIGNED_P MEM_UNALIGNED_P (mem) = MEM_UNALIGNED_P (orig_mem); @@ -4176,7 +4176,6 @@ gen_lowpart_if_possible (mode, x) new = gen_rtx_MEM (mode, plus_constant (XEXP (x, 0), offset)); if (! memory_address_p (mode, XEXP (new, 0))) return 0; - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (x); MEM_COPY_ATTRIBUTES (new, x); return new; } diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 7ac0e8c..82a2ca2 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -1283,11 +1283,7 @@ operand_subword (op, i, validate_address, mode) } new = gen_rtx_MEM (word_mode, addr); - MEM_COPY_ATTRIBUTES (new, op); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (op); - MEM_ALIAS_SET (new) = MEM_ALIAS_SET (op); - return new; } @@ -1597,9 +1593,7 @@ change_address (memref, mode, addr) return memref; new = gen_rtx_MEM (mode, addr); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (memref); MEM_COPY_ATTRIBUTES (new, memref); - MEM_ALIAS_SET (new) = MEM_ALIAS_SET (memref); return new; } diff --git a/gcc/explow.c b/gcc/explow.c index 0f067ca..4d3756e 100644 --- a/gcc/explow.c +++ b/gcc/explow.c @@ -644,22 +644,18 @@ stabilize (x) { rtx temp = copy_all_regs (addr); rtx mem; + if (GET_CODE (temp) != REG) temp = copy_to_reg (temp); mem = gen_rtx_MEM (GET_MODE (x), temp); /* Mark returned memref with in_struct if it's in an array or - structure. Copy const and volatile from original memref. */ + structure. Copy everything else from original memref. */ - RTX_UNCHANGING_P (mem) = RTX_UNCHANGING_P (x); MEM_COPY_ATTRIBUTES (mem, x); if (GET_CODE (addr) == PLUS) MEM_SET_IN_STRUCT_P (mem, 1); - /* Since the new MEM is just like the old X, it can alias only - the things that X could. */ - MEM_ALIAS_SET (mem) = MEM_ALIAS_SET (x); - return mem; } return x; @@ -402,9 +402,7 @@ protect_from_queue (x, modify) register rtx y = XEXP (x, 0); register rtx new = gen_rtx_MEM (GET_MODE (x), QUEUED_VAR (y)); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (x); MEM_COPY_ATTRIBUTES (new, x); - MEM_ALIAS_SET (new) = MEM_ALIAS_SET (x); if (QUEUED_INSN (y)) { @@ -2748,9 +2746,7 @@ emit_move_insn_1 (x, y) { rtx new = gen_rtx_MEM (GET_MODE (x), inner); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (x); MEM_COPY_ATTRIBUTES (new, x); - MEM_ALIAS_SET (new) = MEM_ALIAS_SET (x); x = new; } if (reload_in_progress && GET_CODE (y) == MEM @@ -2758,9 +2754,7 @@ emit_move_insn_1 (x, y) { rtx new = gen_rtx_MEM (GET_MODE (y), inner); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (y); MEM_COPY_ATTRIBUTES (new, y); - MEM_ALIAS_SET (new) = MEM_ALIAS_SET (y); y = new; } diff --git a/gcc/final.c b/gcc/final.c index 28c6c0a..dc9334f 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -3110,12 +3110,12 @@ alter_subreg (x) else if (GET_CODE (y) == MEM) { register int offset = SUBREG_WORD (x) * UNITS_PER_WORD; + if (BYTES_BIG_ENDIAN) offset -= (MIN (UNITS_PER_WORD, GET_MODE_SIZE (GET_MODE (x))) - MIN (UNITS_PER_WORD, GET_MODE_SIZE (GET_MODE (y)))); PUT_CODE (x, MEM); MEM_COPY_ATTRIBUTES (x, y); - MEM_ALIAS_SET (x) = MEM_ALIAS_SET (y); XEXP (x, 0) = plus_constant (XEXP (y, 0), offset); } diff --git a/gcc/function.c b/gcc/function.c index 756f5fc..6815ab8 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -2046,7 +2046,6 @@ fixup_var_refs_1 (var, promoted_mode, loc, insn, replacements) newmem = gen_rtx_MEM (wanted_mode, plus_constant (XEXP (tem, 0), offset)); - RTX_UNCHANGING_P (newmem) = RTX_UNCHANGING_P (tem); MEM_COPY_ATTRIBUTES (newmem, tem); /* Make the change and see if the insn remains valid. */ @@ -2238,7 +2237,6 @@ fixup_var_refs_1 (var, promoted_mode, loc, insn, replacements) newmem = gen_rtx_MEM (wanted_mode, plus_constant (XEXP (tem, 0), offset)); - RTX_UNCHANGING_P (newmem) = RTX_UNCHANGING_P (tem); MEM_COPY_ATTRIBUTES (newmem, tem); /* Make the change and see if the insn remains valid. */ @@ -2928,7 +2926,6 @@ purge_addressof_1 (loc, insn, force, store, ht) { sub2 = gen_rtx_MEM (GET_MODE (x), copy_rtx (XEXP (sub, 0))); MEM_COPY_ATTRIBUTES (sub2, sub); - RTX_UNCHANGING_P (sub2) = RTX_UNCHANGING_P (sub); sub = sub2; } else if (GET_CODE (sub) == REG diff --git a/gcc/integrate.c b/gcc/integrate.c index d22dbfb..8e0f910 100644 --- a/gcc/integrate.c +++ b/gcc/integrate.c @@ -2130,8 +2130,6 @@ copy_rtx_and_substitute (orig, map, for_lhs) PUT_MODE (copy, mode); XEXP (copy, 0) = copy_rtx_and_substitute (XEXP (orig, 0), map, 0); MEM_COPY_ATTRIBUTES (copy, orig); - MEM_ALIAS_SET (copy) = MEM_ALIAS_SET (orig); - RTX_UNCHANGING_P (copy) = RTX_UNCHANGING_P (orig); return copy; default: diff --git a/gcc/optabs.c b/gcc/optabs.c index 2004f6a..0cfe064 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -3769,7 +3769,6 @@ gen_move_insn (x, y) if (x == 0 && GET_CODE (x1) == MEM) { x = gen_rtx_MEM (tmode, XEXP (x1, 0)); - RTX_UNCHANGING_P (x) = RTX_UNCHANGING_P (x1); MEM_COPY_ATTRIBUTES (x, x1); copy_replacements (x1, x); } @@ -3778,7 +3777,6 @@ gen_move_insn (x, y) if (y == 0 && GET_CODE (y1) == MEM) { y = gen_rtx_MEM (tmode, XEXP (y1, 0)); - RTX_UNCHANGING_P (y) = RTX_UNCHANGING_P (y1); MEM_COPY_ATTRIBUTES (y, y1); copy_replacements (y1, y); } diff --git a/gcc/recog.c b/gcc/recog.c index c732dc2..ee38628 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -518,7 +518,6 @@ validate_replace_rtx_1 (loc, from, to, object) - MIN (UNITS_PER_WORD, GET_MODE_SIZE (mode))); new = gen_rtx_MEM (mode, plus_constant (XEXP (to, 0), offset)); - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (to); MEM_COPY_ATTRIBUTES (new, to); validate_change (object, loc, new, 1); return; @@ -576,7 +575,6 @@ validate_replace_rtx_1 (loc, from, to, object) newmem = gen_rtx_MEM (wanted_mode, plus_constant (XEXP (to, 0), offset)); - RTX_UNCHANGING_P (newmem) = RTX_UNCHANGING_P (to); MEM_COPY_ATTRIBUTES (newmem, to); validate_change (object, &XEXP (x, 2), GEN_INT (pos), 1); @@ -760,12 +760,13 @@ extern const char * const note_insn_name[NOTE_INSN_MAX - NOTE_INSN_BIAS]; not refer to a scalar.*/ #define MEM_SCALAR_P(RTX) ((RTX)->frame_related) -/* Copy the MEM_VOLATILE_P, MEM_IN_STRUCT_P, and MEM_SCALAR_P - attributes from RHS to LHS. */ +/* Copy the attributes that apply to memory locations from RHS to LHS. */ #define MEM_COPY_ATTRIBUTES(LHS, RHS) \ (MEM_VOLATILE_P (LHS) = MEM_VOLATILE_P (RHS), \ MEM_IN_STRUCT_P (LHS) = MEM_IN_STRUCT_P (RHS), \ - MEM_SCALAR_P (LHS) = MEM_SCALAR_P (RHS)) + MEM_SCALAR_P (LHS) = MEM_SCALAR_P (RHS), \ + MEM_ALIAS_SET (LHS) = MEM_ALIAS_SET (RHS), \ + RTX_UNCHANGING_P (LHS) = RTX_UNCHANGING_P (RHS)) /* If VAL is non-zero, set MEM_IN_STRUCT_P and clear MEM_SCALAR_P in RTX. Otherwise, vice versa. Use this macro only when you are diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index e3508ef..84bba2d 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -2604,11 +2604,9 @@ add_mem_for_addr (addr_elt, mem_elt, x) return; new = gen_rtx_MEM (GET_MODE (x), addr_elt->u.val_rtx); - addr_elt->addr_list = new_elt_list (addr_elt->addr_list, mem_elt); - - RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (x); MEM_COPY_ATTRIBUTES (new, x); + addr_elt->addr_list = new_elt_list (addr_elt->addr_list, mem_elt); mem_elt->locs = new_elt_loc_list (mem_elt->locs, new); } @@ -4228,7 +4228,6 @@ expand_anon_union_decl (decl, cleanup, decl_elts) { DECL_RTL (decl_elt) = gen_rtx_MEM (mode, copy_rtx (XEXP (x, 0))); MEM_COPY_ATTRIBUTES (DECL_RTL (decl_elt), x); - RTX_UNCHANGING_P (DECL_RTL (decl_elt)) = RTX_UNCHANGING_P (x); } } else if (GET_CODE (x) == REG) |