genpreds.c (const_int_start, [...]): New variables.

gcc/
	* genpreds.c (const_int_start, const_int_end): New variables.
	(choose_enum_order): Output CONST_INT constraints before memory
	constraints.
	(write_tm_preds_h): Always define insn_const_int_ok_for_constraint.
	Add CT_CONST_INT.
	* ira-costs.c (record_reg_classes): Handle CT_CONST_INT.
	* ira.c (ira_setup_alts): Likewise.
	* lra-constraints.c (process_alt_operands): Likewise.
	* recog.c (asm_operand_ok, preprocess_constraints): Likewise.
	* reload.c (find_reloads): Likewise.

From-SVN: r211473

gcc/ChangeLog

 2014-06-11  Richard Sandiford  <rdsandiford@googlemail.com>
 
+	* genpreds.c (const_int_start, const_int_end): New variables.
+	(choose_enum_order): Output CONST_INT constraints before memory
+	constraints.
+	(write_tm_preds_h): Always define insn_const_int_ok_for_constraint.
+	Add CT_CONST_INT.
+	* ira-costs.c (record_reg_classes): Handle CT_CONST_INT.
+	* ira.c (ira_setup_alts): Likewise.
+	* lra-constraints.c (process_alt_operands): Likewise.
+	* recog.c (asm_operand_ok, preprocess_constraints): Likewise.
+	* reload.c (find_reloads): Likewise.
+
+2014-06-11  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	* recog.h (operand_alternative): Remove offmem_ok, nonffmem_ok,
 	decmem_ok and incmem_ok.  Reformat other bitfields for consistency.
 	* recog.c (preprocess_constraints): Update accordingly.

gcc/genpreds.c

@@ -690,6 +690,7 @@ static unsigned int num_constraints;
 static const constraint_data **enum_order;
 static unsigned int register_start, register_end;
 static unsigned int satisfied_start;
+static unsigned int const_int_start, const_int_end;
 static unsigned int memory_start, memory_end;
 static unsigned int address_start, address_end;
 
@@ -931,6 +932,12 @@ choose_enum_order (void)
 
   satisfied_start = next;
 
+  const_int_start = next;
+  FOR_ALL_CONSTRAINTS (c)
+    if (c->is_const_int)
+      enum_order[next++] = c;
+  const_int_end = next;
+
   memory_start = next;
   FOR_ALL_CONSTRAINTS (c)
     if (c->is_memory)
@@ -944,7 +951,7 @@ choose_enum_order (void)
   address_end = next;
 
   FOR_ALL_CONSTRAINTS (c)
-    if (!c->is_register && !c->is_memory && !c->is_address)
+    if (!c->is_register && !c->is_const_int && !c->is_memory && !c->is_address)
       enum_order[next++] = c;
   gcc_assert (next == num_constraints);
 }
@@ -1361,6 +1368,13 @@ write_tm_preds_h (void)
 	      "#define CONST_OK_FOR_CONSTRAINT_P(v_,c_,s_) \\\n"
 	      "    insn_const_int_ok_for_constraint (v_, "
 	      "lookup_constraint (s_))\n");
+      else
+	puts ("static inline bool\n"
+	      "insn_const_int_ok_for_constraint (HOST_WIDE_INT,"
+	      " enum constraint_num)\n"
+	      "{\n"
+	      "  return false;\n"
+	      "}\n");
       if (have_const_dbl_constraints)
 	puts ("#define CONST_DOUBLE_OK_FOR_CONSTRAINT_P(v_,c_,s_) \\\n"
 	      "    constraint_satisfied_p (v_, lookup_constraint (s_))\n");
@@ -1370,6 +1384,7 @@ write_tm_preds_h (void)
       puts ("enum constraint_type\n"
 	    "{\n"
 	    "  CT_REGISTER,\n"
+	    "  CT_CONST_INT,\n"
 	    "  CT_MEMORY,\n"
 	    "  CT_ADDRESS,\n"
 	    "  CT_FIXED_FORM\n"
@@ -1378,7 +1393,9 @@ write_tm_preds_h (void)
 	    "static inline enum constraint_type\n"
 	    "get_constraint_type (enum constraint_num c)\n"
 	    "{");
-      auto_vec <std::pair <unsigned int, const char *>, 3> values;
+      auto_vec <std::pair <unsigned int, const char *>, 4> values;
+      if (const_int_start != const_int_end)
+	values.safe_push (std::make_pair (const_int_start, "CT_CONST_INT"));
       if (memory_start != memory_end)
 	values.safe_push (std::make_pair (memory_start, "CT_MEMORY"));
       if (address_start != address_end)

gcc/ira-costs.c

@@ -763,6 +763,12 @@ record_reg_classes (int n_alts, int n_ops, rtx *ops,
 			classes[i] = ira_reg_class_subunion[classes[i]][cl];
 		      break;
 
+		    case CT_CONST_INT:
+		      if (CONST_INT_P (op)
+			  && insn_const_int_ok_for_constraint (INTVAL (op), cn))
+			win = 1;
+		      break;
+
 		    case CT_MEMORY:
 		      /* Every MEM can be reloaded to fit.  */
 		      insn_allows_mem[i] = allows_mem[i] = 1;

gcc/ira.c

@@ -1936,6 +1936,13 @@ ira_setup_alts (rtx insn, HARD_REG_SET &alts)
 			    goto op_success;
 			  break;
 
+			case CT_CONST_INT:
+			  if (CONST_INT_P (op)
+			      && (insn_const_int_ok_for_constraint
+				  (INTVAL (op), cn)))
+			    goto op_success;
+			  break;
+
 			case CT_ADDRESS:
 			case CT_MEMORY:
 			  goto op_success;

gcc/lra-constraints.c

@@ -2041,6 +2041,12 @@ process_alt_operands (int only_alternative)
 			goto reg;
 		      break;
 
+		    case CT_CONST_INT:
+		      if (CONST_INT_P (op)
+			  && insn_const_int_ok_for_constraint (INTVAL (op), cn))
+			win = true;
+		      break;
+
 		    case CT_MEMORY:
 		      if (MEM_P (op)
 			  && satisfies_memory_constraint_p (op, cn))

gcc/recog.c

@@ -1920,6 +1920,13 @@ asm_operand_ok (rtx op, const char *constraint, const char **constraints)
 		goto reg;
 	      break;
 
+	    case CT_CONST_INT:
+	      if (!result
+		  && CONST_INT_P (op)
+		  && insn_const_int_ok_for_constraint (INTVAL (op), cn))
+		result = 1;
+	      break;
+
 	    case CT_MEMORY:
 	      /* Every memory operand can be reloaded to fit.  */
 	      result = result || memory_operand (op, VOIDmode);
@@ -2443,6 +2450,9 @@ preprocess_constraints (int n_operands, int n_alternatives,
 			op_alt[i].cl = reg_class_subunion[op_alt[i].cl][cl];
 		      break;
 
+		    case CT_CONST_INT:
+		      break;
+
 		    case CT_MEMORY:
 		      op_alt[i].memory_ok = 1;
 		      break;

gcc/reload.c

@@ -3504,6 +3504,13 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
 			  goto reg;
 			break;
 
+		      case CT_CONST_INT:
+			if (CONST_INT_P (operand)
+			    && (insn_const_int_ok_for_constraint
+				(INTVAL (operand), cn)))
+			  win = true;
+			break;
+
 		      case CT_MEMORY:
 			if (force_reload)
 			  break;