gensupport.h (add_implicit_parallel): Declare.

gcc/
	* gensupport.h (add_implicit_parallel): Declare.
	* genrecog.c (add_implicit_parallel): Move to...
	* gensupport.c (add_implicit_parallel): ...here.
	(process_one_cond_exec): Use it.
	* genemit.c (gen_insn): Likewise.

From-SVN: r224454

gcc/ChangeLog

+2015-06-13  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* gensupport.h (add_implicit_parallel): Declare.
+	* genrecog.c (add_implicit_parallel): Move to...
+	* gensupport.c (add_implicit_parallel): ...here.
+	(process_one_cond_exec): Use it.
+	* genemit.c (gen_insn): Likewise.
+
 2015-06-13  Iain Sandoe  <iain@codesourcery.com>
 
 	PR bootstrap/66448

gcc/genemit.c

@@ -378,27 +378,15 @@ gen_insn (rtx insn, int lineno)
 
   /* Output code to construct and return the rtl for the instruction body.  */
 
-  if (XVECLEN (insn, 1) == 1)
-    {
+  rtx pattern = add_implicit_parallel (XVEC (insn, 1));
+  /* ??? This is the traditional behavior, but seems suspect.  */
+  char *used = (XVECLEN (insn, 1) == 1
+		? NULL
+		: XCNEWVEC (char, stats.num_generator_args));
   printf ("  return ");
-      gen_exp (XVECEXP (insn, 1, 0), DEFINE_INSN, NULL);
+  gen_exp (pattern, DEFINE_INSN, used);
   printf (";\n}\n\n");
-    }
-  else
-    {
-      char *used = XCNEWVEC (char, stats.num_generator_args);
-
-      printf ("  return gen_rtx_PARALLEL (VOIDmode, gen_rtvec (%d",
-	      XVECLEN (insn, 1));
-
-      for (i = 0; i < XVECLEN (insn, 1); i++)
-	{
-	  printf (",\n\t\t");
-	  gen_exp (XVECEXP (insn, 1, i), DEFINE_INSN, used);
-	}
-      printf ("));\n}\n\n");
   XDELETEVEC (used);
-    }
 }
 
 /* Generate the `gen_...' function for a DEFINE_EXPAND.  */

gcc/genrecog.c

@@ -5185,22 +5185,6 @@ print_subroutine_group (output_state *os, routine_type type, state *root)
   print_subroutine (os, root, 0);
 }
 
-/* Return the rtx pattern specified by the list of rtxes in a
-   define_insn or define_split.  */
-
-static rtx
-add_implicit_parallel (rtvec vec)
-{
-  if (GET_NUM_ELEM (vec) == 1)
-    return RTVEC_ELT (vec, 0);
-  else
-    {
-      rtx pattern = rtx_alloc (PARALLEL);
-      XVEC (pattern, 0) = vec;
-      return pattern;
-    }
-}
-
 /* Return the rtx pattern for the list of rtxes in a define_peephole2.  */
 
 static rtx

gcc/gensupport.c

@@ -143,6 +143,22 @@ gen_rtx_CONST_INT (machine_mode ARG_UNUSED (mode),
   return rt;
 }
 
+/* Return the rtx pattern specified by the list of rtxes in a
+   define_insn or define_split.  */
+
+rtx
+add_implicit_parallel (rtvec vec)
+{
+  if (GET_NUM_ELEM (vec) == 1)
+    return RTVEC_ELT (vec, 0);
+  else
+    {
+      rtx pattern = rtx_alloc (PARALLEL);
+      XVEC (pattern, 0) = vec;
+      return pattern;
+    }
+}
+
 /* Predicate handling.
 
    We construct from the machine description a table mapping each
@@ -1702,19 +1718,9 @@ process_one_cond_exec (struct queue_elem *ce_elem)
       XSTR (insn, 0) = new_name;
       pattern = rtx_alloc (COND_EXEC);
       XEXP (pattern, 0) = pred;
-      if (XVECLEN (insn, 1) == 1)
-	{
-	  XEXP (pattern, 1) = XVECEXP (insn, 1, 0);
-	  XVECEXP (insn, 1, 0) = pattern;
-	  PUT_NUM_ELEM (XVEC (insn, 1), 1);
-	}
-      else
-	{
-	  XEXP (pattern, 1) = rtx_alloc (PARALLEL);
-	  XVEC (XEXP (pattern, 1), 0) = XVEC (insn, 1);
+      XEXP (pattern, 1) = add_implicit_parallel (XVEC (insn, 1));
       XVEC (insn, 1) = rtvec_alloc (1);
       XVECEXP (insn, 1, 0) = pattern;
-	}
 
        if (XVEC (ce_elem->data, 3) != NULL)
 	{
@@ -1759,19 +1765,10 @@ process_one_cond_exec (struct queue_elem *ce_elem)
       /* Predicate the pattern matched by the split.  */
       pattern = rtx_alloc (COND_EXEC);
       XEXP (pattern, 0) = pred;
-      if (XVECLEN (split, 0) == 1)
-	{
-	  XEXP (pattern, 1) = XVECEXP (split, 0, 0);
-	  XVECEXP (split, 0, 0) = pattern;
-	  PUT_NUM_ELEM (XVEC (split, 0), 1);
-	}
-      else
-	{
-	  XEXP (pattern, 1) = rtx_alloc (PARALLEL);
-	  XVEC (XEXP (pattern, 1), 0) = XVEC (split, 0);
+      XEXP (pattern, 1) = add_implicit_parallel (XVEC (split, 0));
       XVEC (split, 0) = rtvec_alloc (1);
       XVECEXP (split, 0, 0) = pattern;
-	}
+
       /* Predicate all of the insns generated by the split.  */
       for (i = 0; i < XVECLEN (split, 2); i++)
 	{

gcc/gensupport.h

@@ -23,6 +23,7 @@ along with GCC; see the file COPYING3.  If not see
 struct obstack;
 extern struct obstack *rtl_obstack;
 
+extern rtx add_implicit_parallel (rtvec);
 extern bool init_rtx_reader_args_cb (int, char **, bool (*)(const char *));
 extern bool init_rtx_reader_args (int, char **);
 extern rtx read_md_rtx (int *, int *);