Makefile.in (c-decl.o): Depend on rtl.h and expr.h.

	* Makefile.in (c-decl.o): Depend on rtl.h and expr.h.
	* alias.c (struct alias_entry): alias_set is HOST_WIDE_INT.
	(REG_BASE_VALUE): Remove unneeded cast to unsigned.
	(get_alias_set_entry): ALIAS_SET arg is HOST_WIDE_INT.
	(find_base_decl): New function, from c_find_base_decl in c-common.c.
	(new_alias_set): Moved from tree.c; return is HOST_WIDE_INT.
	(get_alias_set): Likewise.
	Major rework to do more things and allow language-specific code
	to just handle special-cases.
	(record_alias_subset): Args are HOST_WIDE_INT.
	(record_component_alias): Local vars are HOST_WIDE_INT.
	Don't handle COMPLEX_EXPR.
	(get_varargs_alias_set): Moved from builtins.c.
	(get_frame_alias_set): New function.
	* builtins.c (expand_builtin_return_address): Use frame alias set.
	(expand_builtin_setjmp, expand_builtin_longjmp): Use alias set
	for setjmp buffer.
	(get_memory_rtx): Rework to use set_mem_attributes.
	(get_varargs_alias_set): Deleted from here.
	* c-common.c (c_apply_type_quals_to_decl): Alias sets now HOST_WIDE_INT.
	(c_find_base_decl): Deleted from here.
	(c_get_alias_set): Remove many cases and rework to just handle
	C-specific cases.
	* c-common.h (c_get_alias_set): Returns HOST_WIDE_INT.
	* c-decl.c (rtl.h, expr.h): Now included.
	(init_decl_processing): Call record_component_aliases on array types.
	(grokdeclarator): Likewise.
	Set TREE_ADDRESSABLE for all fields that are not bitfields.
	* c-typeck.c (common_type): Call record_component_aliases for array.
	* caller-save.c (setup_save_areas): Rework register loop for unsigned.
	Set all save areas to the frame alias set.
	* calls.c (initialie_argument_information): Call set_mem_attributes.
	(compute_argument_addresses, expand_call): Likewise.
	* explow.c (set_mem_attributes): New function.
	(stabilize): Use MEM_COPY_ATTRIBUTES and force_reg.
	* expr.c (struct move_by_pieces): Remove {to,from}_{struct,readonly}.
	LEN and OFFSET now HOST_WIDE_INT.
	(clear_by_pieces): Similar changes.
	(move_by_pieces): LEN now HOST_WIDE_INT; don't set deleted fields.
	(move_by_pieces_ninsns): Now returns unsigned HOST_WIDE_INT.
	(move_by_pieces_1): Don't use deleted fields, use MEM_COPY_ATTRIBUTES.
	(clear_by_pieces_1): Likewise.
	(emit_push_insn): Call set_mem_attributes.
	(expand_expr, case INDIRECT_REF): Likewise.
	(expand_expr, case VAR_DECL): Call change_address.
	* expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE): Use host_integerp and
	tree_low_cst.
	(get_varargs_alias_set, get_frame_alias_set): New decls.
	(record_base_value, record_alias_subset, lang_get_alias_set): Likewise.
	(new_alias_set, set_mem_attributes): Likewse.
	* function.c (struct temp_slot): ALIAS_SET is HOST_WIDE_INT.
	(assign_stack_temp_for_type): Likewise.
	Can split slot even if alias set since can copy.
	Set MEM_ALIAS_SET and MEM_SET_IN_STRUCT_P.
	(assign_temp): Use host_integerp and tree_low_cst.
	(put_var_into_stack): Properly handle SAVE_EXPR.
	(put_addressof_into_stack): Likewise.
	(assign_parms): Call set_mem_attributes.
	Delete #if 0 code.
	(fix_lexical_address): Put reference to chain into frame alias set.
	(expand_function_start): Call set_mem_attributes.
	* integrate.c (expand_inline_function): Likewise.
	* recog.c (adj_offsettable_operand): Use MEM_COPY_ATTRIBUTES.
	* regmove.c (try_apply_stack_adjustment): Likewise.
	* reload.c (push_reload, make_memloc): Likewise.
	* reload1.c (alter_reg): Make alias sets for spilled pseudos.
	* rtl.def (MEM): Update comment.
	* rtl.h (MEM_ALIAS_SET): Now uses XCWINT.
	(move_by_pieces): Change length to HOST_WIDE_INT.
	(record_base_value, record_alias_subset): Delete from here.
	* stmt.c (expand_decl): Call set_mem_attributes.
	* stor-layout.c (finish_record_layout): Call record_component_aliases.i
	* toplev.c (compile_file): Call init_alias_once earlier.
	* tree.c (lang_get_alias_set, get_alias_set, new_alias_set): Deleted
	from here: now in alias.c.
	* tree.h (struct tree_type): alias_set is HOST_WIDE_INT.
	(struct tree_decl): Likewise.
	(get_alias_set, new_alias_set, lang_get_alias_set): Deleted from here.
	* varasm.c (make_function_rtl, make_decl_rtl): Call set_mem_attributes.
	(output_constant_def, force_const_mem): Likewise.
	* cp/Makefile.in (decl.o): Include ../expr.h.
	* cp/decl.c (expr.h): Include.
	(init_decl_processing): Call record_component_aliases for arrays.
	(grokdeclarator): Likewise.
	Set TREE_ADDRESSABLE for fields that aren't bitfields.
	* cp/tree.c (build_cplus_array_type_1): Call record_component_aliases.

From-SVN: r34305

1 files changed, 16 insertions, 10 deletions

diff --git a/gcc/caller-save.c b/gcc/caller-save.c
index 305894ede91..f939de77858 100644
--- a/gcc/caller-save.c
+++ b/gcc/caller-save.c
@@ -256,6 +256,7 @@ void
 setup_save_areas ()
 {
   int i, j, k;
+  unsigned int r;
   HARD_REG_SET hard_regs_used;
 
   /* Allocate space in the save area for the largest multi-register
@@ -267,16 +268,13 @@ setup_save_areas ()
   for (i = FIRST_PSEUDO_REGISTER; i < max_regno; i++)
     if (reg_renumber[i] >= 0 && REG_N_CALLS_CROSSED (i) > 0)
       {
-	int regno = reg_renumber[i];
-	int endregno 
+	unsigned int regno = reg_renumber[i];
+	unsigned int endregno 
 	  = regno + HARD_REGNO_NREGS (regno, GET_MODE (regno_reg_rtx[i]));
-	int nregs = endregno - regno;
 
-	for (j = 0; j < nregs; j++)
-	  {
-	    if (call_used_regs[regno+j]) 
-	      SET_HARD_REG_BIT (hard_regs_used, regno+j);
-	  }
+	for (r = regno; r < endregno; r++)
+	  if (call_used_regs[r])
+	    SET_HARD_REG_BIT (hard_regs_used, r);
       }
 
   /* Now run through all the call-used hard-registers and allocate
@@ -322,16 +320,24 @@ setup_save_areas ()
 	  {
 	    /* This should not depend on WORDS_BIG_ENDIAN.
 	       The order of words in regs is the same as in memory.  */
-	    rtx temp = gen_rtx_MEM (regno_save_mode[i+k][1], 
+	    rtx temp = gen_rtx_MEM (regno_save_mode[i + k][1], 
 				    XEXP (regno_save_mem[i][j], 0));
 
-	    regno_save_mem[i+k][1] 
+	    regno_save_mem[i + k][1] 
 	      = adj_offsettable_operand (temp, k * UNITS_PER_WORD);
 	  }
       }
+
+  /* Now loop again and set the alias set of any save areas we made to
+     the alias set used to represent frame objects.  */
+  for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
+    for (j = MOVE_MAX_WORDS; j > 0; j--)
+      if (regno_save_mem[i][j] != 0)
+	MEM_ALIAS_SET (regno_save_mem[i][j]) = get_frame_alias_set ();
 }
 
 /* Find the places where hard regs are live across calls and save them.  */
+
 void
 save_call_clobbered_regs ()
 {