Virgin import of gcc from EGCS 1.1.2

1 files changed, 16 insertions, 1 deletions

diff --git a/contrib/gcc/loop.h b/contrib/gcc/loop.h
index 4c9c483..25c16f0 100644
--- a/contrib/gcc/loop.h
+++ b/contrib/gcc/loop.h
@@ -75,7 +75,9 @@ struct induction
 				   even if further info is available.
 				   Both this and the above can be zero.  */
   unsigned ignore : 1;		/* 1 prohibits further processing of giv */
-  unsigned always_computable : 1;/* 1 if this set occurs each iteration */
+  unsigned always_computable : 1;/* 1 if this value is computable every
+				    iteration.  */
+  unsigned always_executed : 1; /* 1 if this set occurs each iteration.  */
   unsigned maybe_multiple : 1;	/* Only used for a biv and  1 if this biv
 				   update may be done multiple times per
 				   iteration. */
@@ -88,6 +90,11 @@ struct induction
   unsigned maybe_dead : 1;	/* 1 if this giv might be dead.  In that case,
 				   we won't use it to eliminate a biv, it
 				   would probably lose. */
+  unsigned auto_inc_opt : 1;	/* 1 if this giv had its increment output next
+				   to it to try to form an auto-inc address. */
+  unsigned unrolled : 1;	/* 1 if new register has been allocated and
+				   initialized in unrolled loop.  */
+  unsigned shared : 1;
   int lifetime;			/* Length of life of this giv */
   int times_used;		/* # times this giv is used. */
   rtx derive_adjustment;	/* If nonzero, is an adjustment to be
@@ -174,3 +181,11 @@ rtx final_biv_value PROTO((struct iv_class *, rtx, rtx));
 rtx final_giv_value PROTO((struct induction *, rtx, rtx));
 void emit_unrolled_add PROTO((rtx, rtx, rtx));
 int back_branch_in_range_p PROTO((rtx, rtx, rtx));
+
+extern int *loop_unroll_factor;
+#ifdef HAIFA
+/* variables for interaction between unroll.c and loop.c, for
+   the insertion of branch-on-count instruction. */
+extern rtx *loop_start_value;
+#endif  /* HAIFA */
+