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[pf3gnuchains/gcc-fork.git] / gcc / bitmap.h

diff --git a/gcc/bitmap.h b/gcc/bitmap.h
index a5b0528..bbc0e20 100644 (file)
--- a/gcc/bitmap.h
+++ b/gcc/bitmap.h
@@ -42,8 +42,7 @@ typedef unsigned long BITMAP_WORD;
 #define BITMAP_ELEMENT_ALL_BITS (BITMAP_ELEMENT_WORDS * BITMAP_WORD_BITS)
 
 /* Obstack for allocating bitmaps and elements from.  */
-typedef struct bitmap_obstack GTY (())
-{
+typedef struct GTY (()) bitmap_obstack {
   struct bitmap_element_def *elements;
   struct bitmap_head_def *heads;
   struct obstack GTY ((skip)) obstack;
@@ -61,8 +60,7 @@ typedef struct bitmap_obstack GTY (())
    bitmap_elt_clear_from to be implemented in unit time rather than
    linear in the number of elements to be freed.  */
 
-typedef struct bitmap_element_def GTY(())
-{
+typedef struct GTY(()) bitmap_element_def {
   struct bitmap_element_def *next;             /* Next element.  */
   struct bitmap_element_def *prev;             /* Previous element.  */
   unsigned int indx;                   /* regno/BITMAP_ELEMENT_ALL_BITS.  */
@@ -74,7 +72,7 @@ struct bitmap_descriptor;
    statistics we need to add a bitmap descriptor pointer.  As it is
    not collected, we can just GTY((skip)) it.   */
 
-typedef struct bitmap_head_def GTY(()) {
+typedef struct GTY(()) bitmap_head_def {
   bitmap_element *first;       /* First element in linked list.  */
   bitmap_element *current;     /* Last element looked at.  */
   unsigned int indx;           /* Index of last element looked at.  */
@@ -131,6 +129,8 @@ extern bool bitmap_ior_into (bitmap, const_bitmap);
 extern void bitmap_xor (bitmap, const_bitmap, const_bitmap);
 extern void bitmap_xor_into (bitmap, const_bitmap);
 
+/* DST = A | (B & C).  Return true if DST changes.  */
+extern bool bitmap_ior_and_into (bitmap DST, const_bitmap B, const_bitmap C);
 /* DST = A | (B & ~C).  Return true if DST changes.  */
 extern bool bitmap_ior_and_compl (bitmap DST, const_bitmap A, const_bitmap B, const_bitmap C);
 /* A |= (B & ~C).  Return true if A changes.  */
@@ -183,6 +183,7 @@ extern void bitmap_obstack_free (bitmap);
 #define dump_bitmap(file, bitmap) bitmap_print (file, bitmap, "", "\n")
 #define bitmap_zero(a) bitmap_clear (a)
 extern unsigned bitmap_first_set_bit (const_bitmap);
+extern unsigned bitmap_last_set_bit (const_bitmap);
 
 /* Compute bitmap hash (for purposes of hashing etc.)  */
 extern hashval_t bitmap_hash(const_bitmap);