* function.h (incomming_args): Break out of struct function.

[pf3gnuchains/gcc-fork.git] / gcc / reg-notes.def

diff --git a/gcc/reg-notes.def b/gcc/reg-notes.def
index 3695324..eaf0416 100644 (file)
--- a/gcc/reg-notes.def
+++ b/gcc/reg-notes.def
@@ -52,7 +52,9 @@ REG_NOTE (EQUIV)
 
 /* Like REG_EQUIV except that the destination is only momentarily
    equal to the specified rtx.  Therefore, it cannot be used for
-   substitution; but it can be used for cse.  */
+   substitution; but it can be used for cse.  Together with a
+   REG_RETVAL note, it means that the insn sets the full contents of
+   the libcall value.  */
 REG_NOTE (EQUAL)
 
 /* This insn copies the return-value of a library call out of the hard