From: Andre Vieira <andre.simoesdiasvieira@arm.com>
Date: Thu, 19 Oct 2023 17:27:18 +0000 (+0100)
Subject: parloops: Allow poly nit and bound
X-Git-Tag: basepoints/gcc-15~5376
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53d40858c8370b2079bfb017c6870b244b718800;p=thirdparty%2Fgcc.git

parloops: Allow poly nit and bound

Teach parloops how to handle a poly nit and bound e ahead of the changes to
enable non-constant simdlen.

gcc/ChangeLog:

	* tree-parloops.cc (try_transform_to_exit_first_loop_alt): Accept
	poly NIT and ALT_BOUND.
---

diff --git a/gcc/tree-parloops.cc b/gcc/tree-parloops.cc
index a35f3d5023b0..80f3dd6dce28 100644
--- a/gcc/tree-parloops.cc
+++ b/gcc/tree-parloops.cc
@@ -2531,14 +2531,15 @@ try_transform_to_exit_first_loop_alt (class loop *loop,
   tree nit_type = TREE_TYPE (nit);
 
   /* Figure out whether nit + 1 overflows.  */
-  if (TREE_CODE (nit) == INTEGER_CST)
+  if (poly_int_tree_p (nit))
     {
       if (!tree_int_cst_equal (nit, TYPE_MAX_VALUE (nit_type)))
 	{
 	  alt_bound = fold_build2_loc (UNKNOWN_LOCATION, PLUS_EXPR, nit_type,
 				       nit, build_one_cst (nit_type));
 
-	  gcc_assert (TREE_CODE (alt_bound) == INTEGER_CST);
+	  gcc_assert (TREE_CODE (alt_bound) == INTEGER_CST
+		      || TREE_CODE (alt_bound) == POLY_INT_CST);
 	  transform_to_exit_first_loop_alt (loop, reduction_list, alt_bound);
 	  return true;
 	}