rtl.h (classify_insn): Declare.

gcc/
	* rtl.h (classify_insn): Declare.
	* emit-rtl.c (classify_insn): Move to...
	* rtl.c: ...here and add generator support.
	* gensupport.h (get_emit_function, needs_barrier_p): Declare.
	* gensupport.c (get_emit_function, needs_barrier_p): New functions.
	* genemit.c (gen_emit_seq): New function.
	(gen_expand, gen_split): Use it.

From-SVN: r224470

1 files changed, 34 insertions, 0 deletions

diff --git a/gcc/gensupport.c b/gcc/gensupport.c
index dc73cf9..916fbc1 100644
--- a/gcc/gensupport.c
+++ b/gcc/gensupport.c
@@ -2982,3 +2982,37 @@ get_pattern_stats (struct pattern_stats *stats, rtvec pattern)
 				  MAX (stats->max_dup_opno,
 				       stats->max_scratch_opno)) + 1;
 }
+
+/* Return the emit_* function that should be used for pattern X.  */
+
+const char *
+get_emit_function (rtx x)
+{
+  switch (classify_insn (x))
+    {
+    case INSN:
+      return "emit_insn";
+
+    case CALL_INSN:
+      return "emit_call_insn";
+
+    case JUMP_INSN:
+      return "emit_jump_insn";
+
+    case UNKNOWN:
+      return "emit";
+
+    default:
+      gcc_unreachable ();
+    }
+}
+
+/* Return true if we must emit a barrier after pattern X.  */
+
+bool
+needs_barrier_p (rtx x)
+{
+  return (GET_CODE (x) == SET
+	  && GET_CODE (SET_DEST (x)) == PC
+	  && GET_CODE (SET_SRC (x)) == LABEL_REF);
+}