* 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 a01d888..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
@@ -91,10 +93,16 @@ REG_NOTE (UNUSED)
 REG_NOTE (CC_SETTER)
 REG_NOTE (CC_USER)
 
-/* Points to a CODE_LABEL.  Used by non-JUMP_INSNs to say that the
-   CODE_LABEL contained in the REG_LABEL note is used by the insn.
-   This note is an INSN_LIST.  */
-REG_NOTE (LABEL)
+/* Points to a CODE_LABEL.  Used by JUMP_INSNs to say that the CODE_LABEL
+   contained in the REG_LABEL_TARGET note is a possible jump target of
+   this insn.  This note is an INSN_LIST.  */
+REG_NOTE (LABEL_TARGET)
+
+/* Points to a CODE_LABEL.  Used by any insn to say that the CODE_LABEL
+   contained in the REG_LABEL_OPERAND note is used by the insn, but as an
+   operand, not as a jump target (though it may indirectly be a jump
+   target for a later jump insn).  This note is an INSN_LIST.  */
+REG_NOTE (LABEL_OPERAND)
 
 /* REG_DEP_OUTPUT and REG_DEP_ANTI are used in scheduler dependencies lists
    to represent write-after-write and write-after-read dependencies
@@ -157,7 +165,3 @@ REG_NOTE (CROSSING_JUMP)
 /* This kind of note is generated at each to `setjmp', and similar
    functions that can return twice.  */
 REG_NOTE (SETJMP)
-
-/* This kind of note identifies what libcall id an instruction is part of.  */
-REG_NOTE (LIBCALL_ID)
-