rtl.h (rtx_def): Update documentation.

	* rtl.h (rtx_def): Update documentation.
	(MEM_IN_STRUCT_P): Likewise.
	(MEM_SCALAR_P): New macro.
	(MEM_COPY_ATTRIBUTES): Likewise.
	(MEM_SET_IN_STRUCT_P): Likewise.
	* rtl.texi (MEM_SCALAR_P): Document.
	* alias.c (canon_rtx): Use MEM_COPY_ATTRIBUTES.
	(fixed_scalar_and_varying_struct_p): New function.  Use
	MEM_SCALAR_P rather than !MEM_IN_STRUCT_P.
	(aliases_everything_p): Likewise.
	(true_dependence): Use them.
	(write_dependence_p): New function, containing code common to
	anti_dependence and output_dependence.
	(anti_dependence): Use it.
	(output_dependence): Likewise.
	* calls.c (save_fixed_argument_area): Don't clear
	MEM_IN_STRUCT_P.
	(expand_call): Use MEM_SET_IN_STRUCT_P.
	(emit_library_call): Don't clear MEM_IN_STRUCT_P.
	(emit_library_call_value): Likewise.
	(store_one_arg): Use MEM_SET_IN_STRUCT_P.
	* combine.c (simplify_rtx): Use MEM_COPY_ATTRIBUTES.
	(make_extraction): Likewise.
	(simplify_shift_const): Likewise.
	(gen_lowpart_for_combine): Likewise.
	* cse.c (gen_lowpart_if_possible): Use MEM_COPY_ATTRIBUTES.
	* emit-rtl.c (operand_subword): Likewise.
	(change_address): Likewise.
	* explow.c (stabilize): Use MEM_COPY_ATTRIBUTES.
	* expr.c (protect_from_queue): Use MEM_COPY_ATTRIBUTES.
	(emit_group_store): Use MEM_SET_IN_STRUCT_P.
	(copy_blkmode_from_reg): Likewise.
	(store_field): Likewise.
	(expand_expr): Remove bogus guesswork setting MEM_IN_STRUCT_P
	heuristically.  Use MEM_SET_IN_STRUCT_P.
	(get_memory_rtx): Likewise.
	* final.c (alter_subreg): Use MEM_COPY_ATTRIBUTES.
	* function.c (assign_stack_temp): Clear MEM_SCALAR_P and
	MEM_ALIAS_SET on newly returned MEMs.
	(assign_temp): Use MEM_SET_IN_STRUCT_P.
	(put_reg_into_stack): Likewise.
	(fixup_var_refs1): Use MEM_COPY_ATTRIBUTES.
	(gen_mem_addressof): Use MEM_SET_IN_STRUCT_P.
	(assign_parms): Likewise.
	(expand_function): Likewise.
	* integrate.c (expand_inline_function): Likewise.
	(copy_rtx_and_substitute): Use MEM_COPY_ATTRIBUTES.
	* loop.c (note_addr_stored): Remove check on MEM_IN_STRUCT_P.
	* optabs.c (gen_move_insn): Use MEM_COPY_ATTRIBUTES.
	* print-rtl.c (print_rtx): Print /f for frame_related.
	* recog.c (validate_replace_rtx_1): Use MEM_COPY_ATTRIBUTES.
	* reload1.c (reload): Copy MEM_SCALAR_P as well.
	* stmt.c (expand_decl): Use MEM_SET_IN_STRUCT_P.
	(expand_anon_union_decl): Use MEM_COPY_ATTRIBUTES.
	* varasm.c (make_decl_rtl): Use MEM_SET_IN_STRUCT_P.
	(output_constant_def): Likewise.
	* a29k.c (a29k_set_memflags_1): Take scalar_p.
	Set MEM_SCALAR_P.
	(a29k_set_memflags): Use it.
	* alpha.c (get_aligned_mem): Use MEM_COPY_ATTRIBUTES.
	* c4x.c (c4x_scan_for_ld): Likewise.
	* h8300.c (fix_bit_operand): Likewise.
	* m88k.c (legitimize_address): Likewise.
	(block_move_loop): Likewise.
	(block_move_no_loop): Likewise.
	(block_move_sequence): Likewise.
	(m88k_builtin_saveregs): Use MEM_SET_IN_STRUCT_P.
	* mips/abi64.h (SETUP_INCOMING_VARARGS): Likewise.
	* rs6000.c (expand_block_move_insn): Use MEM_COPY_ATTRIBUTES.
	* sh.c (sh_builtin_saveregs): Use MEM_SET_IN_STRUCT_P.
	* arm.h (arm_gen_load_multiple): Take scalar_p.
	(arm_store_load_multiple): Likewise.
	* arm.c (arm_gen_load_multiple): Likewise.
	(arm_gen_store_multiple): Likewise.
	(arm_gen_movstrqi): Treat MEM_SCALAR_P like MEM_IN_STRUCT_P.

From-SVN: r24759

1 files changed, 5 insertions, 10 deletions

diff --git a/gcc/combine.c b/gcc/combine.c
index 8575b8a..d0e863c 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -3502,9 +3502,8 @@ simplify_rtx (x, op0_mode, last, in_dest)
 			   plus_constant (XEXP (inner, 0),
 					  (SUBREG_WORD (x) * UNITS_PER_WORD
 					   + endian_offset)));
-	  MEM_VOLATILE_P (x) = MEM_VOLATILE_P (inner);
 	  RTX_UNCHANGING_P (x) = RTX_UNCHANGING_P (inner);
-	  MEM_IN_STRUCT_P (x) = MEM_IN_STRUCT_P (inner);
+	  MEM_COPY_ATTRIBUTES (x, inner);
 	  return x;
 	}
 
@@ -5596,8 +5595,7 @@ make_extraction (mode, inner, pos, pos_rtx, len,
 
 	  new = gen_rtx_MEM (tmode, plus_constant (XEXP (inner, 0), offset));
 	  RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (inner);
-	  MEM_VOLATILE_P (new) = MEM_VOLATILE_P (inner);
-	  MEM_IN_STRUCT_P (new) = MEM_IN_STRUCT_P (inner);
+	  MEM_COPY_ATTRIBUTES (new, inner);
 	}
       else if (GET_CODE (inner) == REG)
 	{
@@ -5789,8 +5787,7 @@ 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_VOLATILE_P (newmem) = MEM_VOLATILE_P (inner);
-	  MEM_IN_STRUCT_P (newmem) = MEM_IN_STRUCT_P (inner);
+	  MEM_COPY_ATTRIBUTES (newmem, inner);
 	  inner = newmem;
 	}
     }
@@ -8502,8 +8499,7 @@ simplify_shift_const (x, code, result_mode, varop, count)
 				   plus_constant (XEXP (varop, 0),
 						  count / BITS_PER_UNIT));
 	      RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (varop);
-	      MEM_VOLATILE_P (new) = MEM_VOLATILE_P (varop);
-	      MEM_IN_STRUCT_P (new) = MEM_IN_STRUCT_P (varop);
+	      MEM_COPY_ATTRIBUTES (new, varop);
 	      varop = gen_rtx_combine (code == ASHIFTRT ? SIGN_EXTEND
 				       : ZERO_EXTEND, mode, new);
 	      count = 0;
@@ -9262,8 +9258,7 @@ gen_lowpart_for_combine (mode, x)
 	}
       new = gen_rtx_MEM (mode, plus_constant (XEXP (x, 0), offset));
       RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (x);
-      MEM_VOLATILE_P (new) = MEM_VOLATILE_P (x);
-      MEM_IN_STRUCT_P (new) = MEM_IN_STRUCT_P (x);
+      MEM_COPY_ATTRIBUTES (new, x);
       return new;
     }