+#define PAT_VAR_LOCATION_STATUS(PAT) \
+ ((enum var_init_status) (XCINT ((PAT), 2, VAR_LOCATION)))
+
+/* Accessors for a NOTE_INSN_VAR_LOCATION. */
+#define NOTE_VAR_LOCATION_DECL(NOTE) \
+ PAT_VAR_LOCATION_DECL (NOTE_VAR_LOCATION (NOTE))
+#define NOTE_VAR_LOCATION_LOC(NOTE) \
+ PAT_VAR_LOCATION_LOC (NOTE_VAR_LOCATION (NOTE))
+#define NOTE_VAR_LOCATION_STATUS(NOTE) \
+ PAT_VAR_LOCATION_STATUS (NOTE_VAR_LOCATION (NOTE))
+
+/* The VAR_LOCATION rtx in a DEBUG_INSN. */
+#define INSN_VAR_LOCATION(INSN) PATTERN (INSN)
+
+/* Accessors for a tree-expanded var location debug insn. */
+#define INSN_VAR_LOCATION_DECL(INSN) \
+ PAT_VAR_LOCATION_DECL (INSN_VAR_LOCATION (INSN))
+#define INSN_VAR_LOCATION_LOC(INSN) \
+ PAT_VAR_LOCATION_LOC (INSN_VAR_LOCATION (INSN))
+#define INSN_VAR_LOCATION_STATUS(INSN) \
+ PAT_VAR_LOCATION_STATUS (INSN_VAR_LOCATION (INSN))
+
+/* Expand to the RTL that denotes an unknown variable location in a
+ DEBUG_INSN. */
+#define gen_rtx_UNKNOWN_VAR_LOC() (gen_rtx_CLOBBER (VOIDmode, const0_rtx))
+
+/* Determine whether X is such an unknown location. */
+#define VAR_LOC_UNKNOWN_P(X) \
+ (GET_CODE (X) == CLOBBER && XEXP ((X), 0) == const0_rtx)
+
+/* 1 if RTX is emitted after a call, but it should take effect before
+ the call returns. */
+#define NOTE_DURING_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1("NOTE_VAR_LOCATION_DURING_CALL_P", (RTX), NOTE)->call)
+
+/* DEBUG_EXPR_DECL corresponding to a DEBUG_EXPR RTX. */
+#define DEBUG_EXPR_TREE_DECL(RTX) XCTREE (RTX, 0, DEBUG_EXPR)