(structure induction): Add new field same_insn.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@8784 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/loop.h b/gcc/loop.h
index bb219c3..777c887 100644 (file)
--- a/gcc/loop.h
+++ b/gcc/loop.h
@@ -104,6 +104,10 @@ struct induction
                                   is split, and a constant is eliminated from
                                   the address, the -constant is stored here
                                   for later use. */
+  struct induction *same_insn; /* If there are multiple identical givs in
+                                  the same insn, then all but one have this
+                                  field set, and they all point to the giv
+                                  that doesn't have this field set.  */
 };
 
 /* A `struct iv_class' is created for each biv.  */