tm.texi (TARGET_ADDR_SPACE_POINTER_MODE): Document.

2009-10-26  Ben Elliston  <bje@au.ibm.com>
	    Michael Meissner  <meissner@linux.vnet.ibm.com>
	    Ulrich Weigand  <uweigand@de.ibm.com>

	* doc/tm.texi (TARGET_ADDR_SPACE_POINTER_MODE): Document.
	(TARGET_ADDR_SPACE_ADDRESS_MODE): Likewise.
	(TARGET_ADDR_SPACE_VALID_POINTER_MODE): Likewise.

	* target.h (struct target_def): Add pointer_mode, address_mode,
	and valid_pointer_mode to addr_space substructure.
	* target-def.h (TARGET_ADDR_SPACE_POINTER_MODE): Define.
	(TARGET_ADDR_SPACE_ADDRESS_MODE): Likewise.
	(TARGET_ADDR_SPACE_VALID_POINTER_MODE): Likewise.
	(TARGET_ADDR_SPACE_HOOKS): Add them.
	* targhooks.c (target_default_pointer_address_modes_p): New function.
	* target.h (target_default_pointer_address_modes_p): Add prototype.
	* targhooks.c (default_addr_space_pointer_mode): New function.
	(default_addr_space_address_mode): Likewise.
	(default_addr_space_valid_pointer_mode): Likewise.
	* targhooks.h (default_addr_space_pointer_mode): Add prototype.
	(default_addr_space_address_mode): Likewise.
	(default_addr_space_valid_pointer_mode): Likewise.
	* output.h (default_valid_pointer_mode): Move to ...
	* targhooks.h (default_valid_pointer_mode): ... here.
	* varasm.c (default_valid_pointer_mode): Move to ...
	* targhooks.c (default_valid_pointer_mode): ... here.

	* varasm.c (output_constant): Use targetm.addr_space.valid_pointer_mode
	instead of targetm.valid_pointer_mode.

	* fold-const.c (fit_double_type): Use int_or_pointer_precision.
	* tree.c (integer_pow2p): Likewise.
	(tree_log2): Likewise.
	(tree_floor_log2): Likewise.
	(signed_or_unsigned_type_for): Support pointer type of different size.
	(int_or_pointer_precision): New function.
	* tree.h (int_or_pointer_precision): Add prototype.
	* stor-layout.c (layout_type): Set TYPE_PRECISION for offset types.
	* varasm.c (initializer_constant_valid_p): Use TYPE_PRECISION of
	incoming pointer type instead of POINTER_SIZE.

	* tree.c (build_pointer_type): Use appropriate pointer mode
	instead of ptr_mode.
	(build_reference_type): Likewise.
	* expr.c (store_expr): Likewise.
	(expand_expr_addr_expr): Likewise.
	* tree-vect-data-refs.c (vect_create_data_ref_ptr): Likewise.
	* cfgexpand.c (expand_debug_expr): Likewise.
	
	* auto-inc-dec.c: Include "target.h".
	(try_merge): Use appropriate address mode instead of Pmode.
	(find_inc): Likewise.
	* combine.c (find_split_point): Likewise.
	* cselib.c (cselib_record_sets): Likewise.
	* dse.c (replace_inc_dec): Likewise.
	(canon_address): Likewise.
	* var-tracking.c (replace_expr_with_values): Likewise.
	(count_uses): Likewise.
	(add_uses): Likewise.
	(add_stores): Likewise.
	* emit-rtl.c: Include "target.h".
	(adjust_address_1): Use appropriate address mode instead of Pmode.
	(offset_address): Likewise.
	* explow.c (break_out_memory_refs): Likewise.
	(memory_address_addr_space): Likewise.
	(promote_mode): Likewise.
	* expr.c (move_by_pieces): Likewise.
	(emit_block_move_via_loop): Likewise.
	(store_by_pieces): Likewise.
	(store_by_pieces_1): Likewise.
	(expand_assignment): Likewise.
	(store_constructor): Likewise.
	(expand_expr_addr_expr): Likewise.
	(expand_expr_real_1): Likewise.
	* cfgexpand.c (expand_debug_expr): Likewise.
	* ifcvt.c (noce_try_cmove_arith): Likewise.
	* regcprop.c (kill_autoinc_value): Likewise.
	* regmove.c (try_auto_increment): Likewise.
	* reload.c (find_reloads): Likewise.
	(find_reloads_address): Likewise.
	(find_reloads_address_1): Likewise.
	* sched-deps.c: Include "target.h".
	(sched_analyze_1): Use appropriate address mode instead of Pmode.
	(sched_analyze_2): Likewise.
	* sel-sched-dump.c: Include "target.h".
	(debug_mem_addr_value): Use appropriate address mode instead of Pmode.
	* stor-layout.c (layout_type): Likewise.
	* tree-ssa-loop-ivopts.c (produce_memory_decl_rtl): Likewise.
	(multiplier_allowed_in_address_p): Likewise.
	(get_address_cost): Likewise.
	* varasm.c (make_decl_rtl): Likewise.
	
	* expr.c (expand_assignment): Always convert offsets to appropriate
	address mode.
	(store_expr): Likewise.
	(store_constructor): Likewise.
	(expand_expr_real_1): Likewise.

	* reload.h (form_sum): Add MODE argument.
	* reload.c (form_sum): Add MODE argument, use it instead of Pmode.
	Update recursive calls.
	(subst_indexed_address): Update calls to form_sum.
	
	* tree-flow.h (addr_for_mem_ref): Add ADDRSPACE argument.
	* tree-ssa-address.c: Include "target.h".
	(templates): Replace by ...
	(mem_addr_template_list): ... this new vector.
	(TEMPL_IDX): Handle address space numbers.
	(gen_addr_rtx): Add address mode argument, use it instead of Pmode.
	(addr_for_mem_ref): Add ADDRSPACE argument.  Use per-address-space
	instead of global cache.  Update call to gen_addr_rtx.
	(valid_mem_ref_p): Update call to addr_for_mem_ref.
	* expr.c (expand_expr_real_1): Update call to addr_for_mem_ref.
	
	* rtl.h (convert_memory_address_addr_space): Add prototype.
	(convert_memory_address): Define as macro.
	* explow.c (convert_memory_address): Rename to ...
	(convert_memory_address_addr_space): ... this.  Add ADDRSPACE argument.
	Use appropriate pointer and address modes instead of ptr_mode / Pmode.
	Update recursive calls.
	(memory_address_addr_space): Call convert_memory_address_addr_space.
	* expmed.c (make_tree): Likewise.
	* expr.c (expand_assignment): Likewise.
	(expand_expr_addr_expr_1): Likewise.  Also, add ADDRSPACE argument.
	(expand_expr_addr_expr): Likewise.  Also, update call.

	* alias.c (find_base_value): Guard pointer size optimizations.
	(find_base_term): Likewise.
	* rtlanal.c (nonzero_bits1): Likewise.
	(num_sign_bit_copies1): Likewise.
	* simplify-rtx.c (simplify_unary_operation_1): Likewise.

	* Makefile.in (tree-ssa-address.o): Add $(TARGET_H) dependency.
	(emit-rtl.o): Likewise.
	(auto-inc-dec.o): Likewise.
	(sched-deps.o): Likewise.

Co-Authored-By: Michael Meissner <meissner@linux.vnet.ibm.com>
Co-Authored-By: Ulrich Weigand <uweigand@de.ibm.com>

From-SVN: r153573

1 files changed, 23 insertions, 19 deletions

diff --git a/gcc/reload.c b/gcc/reload.c
index 166bcb98611..3333697f2e0 100644
--- a/gcc/reload.c
+++ b/gcc/reload.c
@@ -3987,12 +3987,15 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
 		 && MEM_P (recog_data.operand[i]))
 	  {
 	    /* If the address to be reloaded is a VOIDmode constant,
-	       use Pmode as mode of the reload register, as would have
-	       been done by find_reloads_address.  */
+	       use the default address mode as mode of the reload register,
+	       as would have been done by find_reloads_address.  */
 	    enum machine_mode address_mode;
 	    address_mode = GET_MODE (XEXP (recog_data.operand[i], 0));
 	    if (address_mode == VOIDmode)
-	      address_mode = Pmode;
+	      {
+		addr_space_t as = MEM_ADDR_SPACE (recog_data.operand[i]);
+		address_mode = targetm.addr_space.address_mode (as);
+	      }
 
 	    operand_reloadnum[i]
 	      = push_reload (XEXP (recog_data.operand[i], 0), NULL_RTX,
@@ -5113,7 +5116,7 @@ find_reloads_address (enum machine_mode mode, rtx *memrefloc, rtx ad,
 	     That will at least work.  */
 	  find_reloads_address_part (ad, loc,
 				     base_reg_class (mode, MEM, SCRATCH),
-				     Pmode, opnum, type, ind_levels);
+				     GET_MODE (ad), opnum, type, ind_levels);
 	}
       return ! removed_and;
     }
@@ -5235,6 +5238,10 @@ find_reloads_address (enum machine_mode mode, rtx *memrefloc, rtx ad,
      into a register.  */
   if (CONSTANT_P (ad) && ! strict_memory_address_addr_space_p (mode, ad, as))
     {
+      enum machine_mode address_mode = GET_MODE (ad);
+      if (ad == VOIDmode)
+	address_mode = targetm.addr_space.address_mode (as);
+
       /* If AD is an address in the constant pool, the MEM rtx may be shared.
 	 Unshare it so we can safely alter it.  */
       if (memrefloc && GET_CODE (ad) == SYMBOL_REF
@@ -5247,7 +5254,7 @@ find_reloads_address (enum machine_mode mode, rtx *memrefloc, rtx ad,
 	}
 
       find_reloads_address_part (ad, loc, base_reg_class (mode, MEM, SCRATCH),
-				 Pmode, opnum, type, ind_levels);
+				 address_mode, opnum, type, ind_levels);
       return ! removed_and;
     }
 
@@ -5334,16 +5341,12 @@ subst_reg_equivs (rtx ad, rtx insn)
    This routine assumes both inputs are already in canonical form.  */
 
 rtx
-form_sum (rtx x, rtx y)
+form_sum (enum machine_mode mode, rtx x, rtx y)
 {
   rtx tem;
-  enum machine_mode mode = GET_MODE (x);
-
-  if (mode == VOIDmode)
-    mode = GET_MODE (y);
 
-  if (mode == VOIDmode)
-    mode = Pmode;
+  gcc_assert (GET_MODE (x) == mode || GET_MODE (x) == VOIDmode);
+  gcc_assert (GET_MODE (y) == mode || GET_MODE (y) == VOIDmode);
 
   if (CONST_INT_P (x))
     return plus_constant (y, INTVAL (x));
@@ -5353,12 +5356,12 @@ form_sum (rtx x, rtx y)
     tem = x, x = y, y = tem;
 
   if (GET_CODE (x) == PLUS && CONSTANT_P (XEXP (x, 1)))
-    return form_sum (XEXP (x, 0), form_sum (XEXP (x, 1), y));
+    return form_sum (mode, XEXP (x, 0), form_sum (mode, XEXP (x, 1), y));
 
   /* Note that if the operands of Y are specified in the opposite
      order in the recursive calls below, infinite recursion will occur.  */
   if (GET_CODE (y) == PLUS && CONSTANT_P (XEXP (y, 1)))
-    return form_sum (form_sum (x, XEXP (y, 0)), XEXP (y, 1));
+    return form_sum (mode, form_sum (mode, x, XEXP (y, 0)), XEXP (y, 1));
 
   /* If both constant, encapsulate sum.  Otherwise, just form sum.  A
      constant will have been placed second.  */
@@ -5425,9 +5428,9 @@ subst_indexed_address (rtx addr)
 
       /* Compute the sum.  */
       if (op2 != 0)
-	op1 = form_sum (op1, op2);
+	op1 = form_sum (GET_MODE (addr), op1, op2);
       if (op1 != 0)
-	op0 = form_sum (op0, op1);
+	op0 = form_sum (GET_MODE (addr), op0, op1);
 
       return op0;
     }
@@ -5827,7 +5830,8 @@ find_reloads_address_1 (enum machine_mode mode, rtx x, int context,
 	      rtx equiv = (MEM_P (XEXP (x, 0))
 			   ? XEXP (x, 0)
 			   : reg_equiv_mem[regno]);
-	      int icode = (int) optab_handler (add_optab, Pmode)->insn_code;
+	      int icode
+		= (int) optab_handler (add_optab, GET_MODE (x))->insn_code;
 	      if (insn && NONJUMP_INSN_P (insn) && equiv
 		  && memory_operand (equiv, GET_MODE (equiv))
 #ifdef HAVE_cc0
@@ -5835,9 +5839,9 @@ find_reloads_address_1 (enum machine_mode mode, rtx x, int context,
 #endif
 		  && ! (icode != CODE_FOR_nothing
 			&& ((*insn_data[icode].operand[0].predicate)
-			    (equiv, Pmode))
+			    (equiv, GET_MODE (x)))
 			&& ((*insn_data[icode].operand[1].predicate)
-			    (equiv, Pmode))))
+			    (equiv, GET_MODE (x)))))
 		{
 		  /* We use the original pseudo for loc, so that
 		     emit_reload_insns() knows which pseudo this