entered into RCS

From-SVN: r1731

gcc/cexp.y

@@ -65,6 +65,8 @@ static int keyword_parsing = 0;
 /* some external tables of character types */
 extern unsigned char is_idstart[], is_idchar[], is_hor_space[];
 
+extern char *xmalloc ();
+
 /* Flag for -pedantic.  */
 extern int pedantic;
 

gcc/combine.c

@@ -1886,14 +1886,32 @@ try_combine (i3, i2, i1)
       distribute_notes (gen_rtx (EXPR_LIST, REG_DEAD, i3dest_killed, NULL_RTX),
 			NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
 			NULL_RTX, NULL_RTX);
+
+    /* For I2 and I1, we have to be careful.  If NEWI2PAT exists and sets
+       I2DEST or I1DEST, the death must be somewhere before I2, not I3.  If
+       we passed I3 in that case, it might delete I2.  */
+
     if (i2dest_in_i2src)
-      distribute_notes (gen_rtx (EXPR_LIST, REG_DEAD, i2dest, NULL_RTX),
-			NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
-			NULL_RTX, NULL_RTX);
+      {
+	if (newi2pat && reg_set_p (i2dest, newi2pat))
+	  distribute_notes (gen_rtx (EXPR_LIST, REG_DEAD, i2dest, NULL_RTX),
+			    NULL_RTX, i2, NULL_RTX, NULL_RTX, NULL_RTX);
+	else
+	  distribute_notes (gen_rtx (EXPR_LIST, REG_DEAD, i2dest, NULL_RTX),
+			    NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
+			    NULL_RTX, NULL_RTX);
+      }
+
     if (i1dest_in_i1src)
-      distribute_notes (gen_rtx (EXPR_LIST, REG_DEAD, i1dest, NULL_RTX),
-			NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
-			NULL_RTX, NULL_RTX);
+      {
+	if (newi2pat && reg_set_p (i1dest, newi2pat))
+	  distribute_notes (gen_rtx (EXPR_LIST, REG_DEAD, i1dest, NULL_RTX),
+			    NULL_RTX, i2, NULL_RTX, NULL_RTX, NULL_RTX);
+	else
+	  distribute_notes (gen_rtx (EXPR_LIST, REG_DEAD, i1dest, NULL_RTX),
+			    NULL_RTX, i3, newi2pat ? i2 : NULL_RTX,
+			    NULL_RTX, NULL_RTX);
+      }
 
     distribute_links (i3links);
     distribute_links (i2links);

gcc/cse.c

@@ -1998,7 +1998,7 @@ exp_equiv_p (x, y, validate, equal_values)
       return x == y;
 
     case CONST_INT:
-      return XINT (x, 0) == XINT (y, 0);
+      return INTVAL (x) == INTVAL (y);
 
     case LABEL_REF:
     case SYMBOL_REF:

gcc/reload.c

@@ -4153,9 +4153,10 @@ find_reloads_address_1 (x, context, loc, operand, ind_levels)
 
       if (reg_equiv_constant[regno] != 0)
 	{
-	  push_reload (reg_equiv_constant[regno], NULL_RTX, loc, NULL_PTR,
-		       context ? INDEX_REG_CLASS : BASE_REG_CLASS,
-		       GET_MODE (x), VOIDmode, 0, 0, operand);
+	  find_reloads_address_part (reg_equiv_constant[regno], loc, 
+				     (context ? INDEX_REG_CLASS
+				      : BASE_REG_CLASS),
+				     GET_MODE (x), operand, ind_levels);
 	  return 1;
 	}
 

gcc/reload1.c

@@ -5673,8 +5673,8 @@ gen_input_reload (reloadreg, in, before_insn)
       if (GET_MODE (loc) != GET_MODE (in))
 	in = gen_rtx (REG, GET_MODE (loc), REGNO (in));
 
-      emit_insn_before (gen_move_insn (reloadreg, loc), before_insn);
       emit_insn_before (gen_move_insn (loc, in), before_insn);
+      emit_insn_before (gen_move_insn (reloadreg, loc), before_insn);
     }
 #endif
 

gcc/reorg.c

@@ -1110,6 +1110,8 @@ get_branch_condition (insn, target)
     return gen_rtx (reverse_condition (GET_CODE (XEXP (src, 0))),
 		    GET_MODE (XEXP (src, 0)),
 		    XEXP (XEXP (src, 0), 0), XEXP (XEXP (src, 0), 1));
+
+  return 0;
 }
 
 /* Return non-zero if CONDITION is more strict than the condition of