rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.

        * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
        * rtl.h (LABEL_NEXTREF): Remove field accessor.

From-SVN: r111969

gcc/ChangeLog

+2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
+
+	* rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
+	* rtl.h (LABEL_NEXTREF): Remove field accessor.
+
 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* function.h (frame_offset_overflow): Declare.

gcc/rtl.def

@@ -389,9 +389,8 @@ DEF_RTL_EXPR(CONCAT, "concat", "ee", RTX_OBJ)
 DEF_RTL_EXPR(MEM, "mem", "e0", RTX_OBJ)
 
 /* Reference to an assembler label in the code for this function.
-   The operand is a CODE_LABEL found in the insn chain.
-   The unprinted field 1 is used in flow.c for the LABEL_NEXTREF.  */
-DEF_RTL_EXPR(LABEL_REF, "label_ref", "u0", RTX_CONST_OBJ)
+   The operand is a CODE_LABEL found in the insn chain.  */
+DEF_RTL_EXPR(LABEL_REF, "label_ref", "u", RTX_CONST_OBJ)
 
 /* Reference to a named label: 
    Operand 0: label name

gcc/rtl.h

@@ -961,13 +961,6 @@ enum label_kind
    The chain eventually winds up at the CODE_LABEL: it is circular.  */
 #define LABEL_REFS(LABEL) XCEXP (LABEL, 5, CODE_LABEL)
 
-/* This is the field in the LABEL_REF through which the circular chain
-   of references to a particular label is linked.
-   FIXME: This chain is used in loop.c and in the SH backend.
-	  Since loop.c is about to go away, it could be a win to replace
-	  the uses of this in the SH backend with something else.  */
-#define LABEL_NEXTREF(REF) XCEXP (REF, 1, LABEL_REF)
-
 /* For a REG rtx, REGNO extracts the register number.  ORIGINAL_REGNO holds
    the number the register originally had; for a pseudo register turned into
    a hard reg this will hold the old pseudo register number.  */