re PR rtl-optimization/89768 (ICE in compare_and_jump_seq at loop-unroll.c:838)

	PR rtl-optimization/89768
	* loop-unroll.c (unroll_loop_constant_iterations): Use gen_int_mode
	instead of GEN_INT.
	(unroll_loop_runtime_iterations): Likewise.

From-SVN: r269812

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 991f019..f4b59d7 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2019-03-19  Jakub Jelinek  <jakub@redhat.com>
+
+       PR rtl-optimization/89768
+       * loop-unroll.c (unroll_loop_constant_iterations): Use gen_int_mode
+       instead of GEN_INT.
+       (unroll_loop_runtime_iterations): Likewise.
+
 2019-03-19  Martin Sebor  <msebor@redhat.com>
 
        PR tree-optimization/89644

diff --git a/gcc/loop-unroll.c b/gcc/loop-unroll.c
index bc7840e..1b4c73b 100644 (file)
--- a/gcc/loop-unroll.c
+++ b/gcc/loop-unroll.c
@@ -652,7 +652,7 @@ unroll_loop_constant_iterations (struct loop *loop)
   if (loop->any_likely_upper_bound)
     loop->nb_iterations_likely_upper_bound
       = wi::udiv_trunc (loop->nb_iterations_likely_upper_bound, max_unroll + 1);
-  desc->niter_expr = GEN_INT (desc->niter);
+  desc->niter_expr = gen_int_mode (desc->niter, desc->mode);
 
   /* Remove the edges.  */
   FOR_EACH_VEC_ELT (remove_edges, i, e)
@@ -1020,9 +1020,9 @@ unroll_loop_runtime_iterations (struct loop *loop)
       preheader = split_edge (loop_preheader_edge (loop));
       /* Add in count of edge from switch block.  */
       preheader->count += iter_count;
-      branch_code = compare_and_jump_seq (copy_rtx (niter), GEN_INT (j), EQ,
-                                         block_label (preheader), p,
-                                         NULL);
+      branch_code = compare_and_jump_seq (copy_rtx (niter),
+                                         gen_int_mode (j, desc->mode), EQ,
+                                         block_label (preheader), p, NULL);
 
       /* We rely on the fact that the compare and jump cannot be optimized out,
         and hence the cfg we create is correct.  */