bitmap.h (bitmap_and, [...]): Produce void.

	* bitmap.h (bitmap_and, bitmap_and_into, bitmap_and_compl,
	bitmap_and_compl_into, bitmap_ior, bitmap_iot_into,
	bitmap_ior_compl, bitmap_xor, bitmap_xor_into): Produce void.
	(bitmap_ior_and_compl_into): Produce bool.
	(bitmap_union_of_diff): Rename to ...
	(bitmap_ior_and_compl): ... here. Produce bool.
	* bitmap.c (bitmap_ior_and_compl_into): Return bool. Use
	bitmap_operation directly.
	(bitmap_union_of_diff): Rename to ...
	(bitmap_ior_and_compl): ... here. Return bool, use
	bitmap_operation directly.
	* df.c (df_rd_transfer_function): Use bitmap_ior_and_compl.
	(df_ru_transfer_function, df_lr_transfer_function): Likewise.
	* global.c (modify_bb_reg_pav): Likewise.

From-SVN: r89982

gcc/ChangeLog

 2004-11-02  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* bitmap.h (bitmap_and, bitmap_and_into, bitmap_and_compl,
+	bitmap_and_compl_into, bitmap_ior, bitmap_iot_into,
+	bitmap_ior_compl, bitmap_xor, bitmap_xor_into): Produce void.
+	(bitmap_ior_and_compl_into): Produce bool.
+	(bitmap_union_of_diff): Rename to ...
+	(bitmap_ior_and_compl): ... here. Produce bool.
+	* bitmap.c (bitmap_ior_and_compl_into): Return bool. Use
+	bitmap_operation directly.
+	(bitmap_union_of_diff): Rename to ...
+	(bitmap_ior_and_compl): ... here. Return bool, use
+	bitmap_operation directly.
+	* df.c (df_rd_transfer_function): Use bitmap_ior_and_compl.
+	(df_ru_transfer_function, df_lr_transfer_function): Likewise.
+	* global.c (modify_bb_reg_pav): Likewise.
+
 	* bitmap.h (bitmap_equal_p): Return bool.
 	(bitmap_intersect_p, bitmap_intersect_compl_p): Declare.
 	* bitmap.c (bitmap_equal_p): Return bool. Compare directly.

gcc/bitmap.c

@@ -743,10 +743,9 @@ bitmap_intersect_compl_p (bitmap a, bitmap b)
 }
 
 
-/* Or into bitmap TO bitmap FROM1 and'ed with the complement of
-   bitmap FROM2.  */
+/* Produce TO |= FROM1 & ~FROM2.  Return true, if TO changed.  */
 
-int
+bool
 bitmap_ior_and_compl_into (bitmap to, bitmap from1, bitmap from2)
 {
   bitmap_head tmp;
@@ -756,13 +755,15 @@ bitmap_ior_and_compl_into (bitmap to, bitmap from1, bitmap from2)
   tmp.using_obstack = 0;
 
   bitmap_and_compl (&tmp, from1, from2);
-  changed = bitmap_ior_into (to, &tmp);
+  changed = bitmap_operation (to, to, &tmp, BITMAP_IOR);
   bitmap_clear (&tmp);
   return changed;
 }
 
-int
-bitmap_union_of_diff (bitmap dst, bitmap a, bitmap b, bitmap c)
+/* Produce DST = A | (B & ~C).  Return true if DST != A.  */
+
+bool
+bitmap_ior_and_compl (bitmap dst, bitmap a, bitmap b, bitmap c)
 {
   bitmap_head tmp;
   int changed;
@@ -771,7 +772,7 @@ bitmap_union_of_diff (bitmap dst, bitmap a, bitmap b, bitmap c)
   tmp.using_obstack = 0;
 
   bitmap_and_compl (&tmp, b, c);
-  changed = bitmap_ior (dst, &tmp, a);
+  changed = bitmap_operation (dst, a, &tmp, BITMAP_IOR);
   bitmap_clear (&tmp);
 
   return changed;

gcc/bitmap.h

@@ -100,19 +100,20 @@ extern bool bitmap_intersect_compl_p (bitmap, bitmap);
 /* Perform an operation on two bitmaps, yielding a third.  */
 extern int bitmap_operation (bitmap, bitmap, bitmap, enum bitmap_bits);
 
-#define bitmap_and(DST,A,B) bitmap_operation (DST,A,B,BITMAP_AND)
-#define bitmap_and_into(DST_SRC,B) bitmap_operation (DST_SRC,DST_SRC,B,BITMAP_AND)
-#define bitmap_and_compl(DST,A,B) bitmap_operation (DST,A,B,BITMAP_AND_COMPL)
-#define bitmap_and_compl_into(DST_SRC,B) bitmap_operation (DST_SRC,DST_SRC,B,BITMAP_AND_COMPL)
-#define bitmap_ior(DST,A,B) bitmap_operation (DST,A,B,BITMAP_IOR)
-#define bitmap_ior_into(DST_SRC,B) bitmap_operation (DST_SRC,DST_SRC,B,BITMAP_IOR)
-#define bitmap_ior_compl(DST,A,B) bitmap_operation (DST,A,B,BITMAP_IOR_COMPL)
-#define bitmap_xor(DST,A,B) bitmap_operation (DST,A,B,BITMAP_XOR)
-#define bitmap_xor_into(DST_SRC,B) bitmap_operation (DST_SRC,DST_SRC,B,BITMAP_XOR)
+#define bitmap_and(DST,A,B) (void)bitmap_operation (DST,A,B,BITMAP_AND)
+#define bitmap_and_into(DST_SRC,B) (void)bitmap_operation (DST_SRC,DST_SRC,B,BITMAP_AND)
+#define bitmap_and_compl(DST,A,B) (void)bitmap_operation (DST,A,B,BITMAP_AND_COMPL)
+#define bitmap_and_compl_into(DST_SRC,B) (void)bitmap_operation (DST_SRC,DST_SRC,B,BITMAP_AND_COMPL)
+#define bitmap_ior(DST,A,B) (void)bitmap_operation (DST,A,B,BITMAP_IOR)
+#define bitmap_ior_into(DST_SRC,B) (void)bitmap_operation (DST_SRC,DST_SRC,B,BITMAP_IOR)
+#define bitmap_ior_compl(DST,A,B) (void)bitmap_operation (DST,A,Br,BITMAP_IOR_COMPL)
+#define bitmap_xor(DST,A,B) (void)bitmap_operation (DST,A,B,BITMAP_XOR)
+#define bitmap_xor_into(DST_SRC,B) (void)bitmap_operation (DST_SRC,DST_SRC,B,BITMAP_XOR)
 
 /* `or' into one bitmap the `and' of a second bitmap witih the complement
    of a third. Return nonzero if the bitmap changes. */
-extern int bitmap_ior_and_compl_into (bitmap, bitmap, bitmap);
+extern bool bitmap_ior_and_compl_into (bitmap, bitmap, bitmap);
+extern bool bitmap_ior_and_compl (bitmap, bitmap, bitmap, bitmap);
 
 /* Clear a single register in a register set.  */
 extern void bitmap_clear_bit (bitmap, int);
@@ -142,7 +143,6 @@ extern void bitmap_release_memory (void);
 #define bitmap_zero(a) bitmap_clear (a)
 #define bitmap_a_or_b(a,b,c) bitmap_operation (a, b, c, BITMAP_IOR)
 #define bitmap_a_and_b(a,b,c) bitmap_operation (a, b, c, BITMAP_AND)
-extern int bitmap_union_of_diff (bitmap, bitmap, bitmap, bitmap);
 extern int bitmap_first_set_bit (bitmap);
 extern int bitmap_last_set_bit (bitmap);
 

gcc/df.c

@@ -1588,7 +1588,7 @@ df_rd_transfer_function (int bb ATTRIBUTE_UNUSED, int *changed, void *in,
 			 void *out, void *gen, void *kill,
 			 void *data ATTRIBUTE_UNUSED)
 {
-  *changed = bitmap_union_of_diff (out, gen, in, kill);
+  *changed = bitmap_ior_and_compl (out, gen, in, kill);
 }
 
 
@@ -1597,7 +1597,7 @@ df_ru_transfer_function (int bb ATTRIBUTE_UNUSED, int *changed, void *in,
 			 void *out, void *gen, void *kill,
 			 void *data ATTRIBUTE_UNUSED)
 {
-  *changed = bitmap_union_of_diff (in, gen, out, kill);
+  *changed = bitmap_ior_and_compl (in, gen, out, kill);
 }
 
 
@@ -1606,7 +1606,7 @@ df_lr_transfer_function (int bb ATTRIBUTE_UNUSED, int *changed, void *in,
 			 void *out, void *use, void *def,
 			 void *data ATTRIBUTE_UNUSED)
 {
-  *changed = bitmap_union_of_diff (in, use, out, def);
+  *changed = bitmap_ior_and_compl (in, use, out, def);
 }
 
 

gcc/global.c

@@ -2307,7 +2307,7 @@ modify_bb_reg_pav (basic_block bb, basic_block pred, bool changed_p)
   bb_pavout = bb_info->pavout;
   if (pred->index != ENTRY_BLOCK)
     bitmap_a_or_b (bb_pavin, bb_pavin, BB_INFO (pred)->pavout);
-  changed_p |= bitmap_union_of_diff (bb_pavout, bb_info->avloc,
+  changed_p |= bitmap_ior_and_compl (bb_pavout, bb_info->avloc,
 				     bb_pavin, bb_info->killed);
   return changed_p;
 }