[gcc r16-19] tree-optimization/119858 - type mismatch with POINTER_PLUS

[Richard Biener via Gcc-cvs]

https://gcc.gnu.org/g:1f7ac78efa622e19f38d6a45e857941b3dea1437

commit r16-19-g1f7ac78efa622e19f38d6a45e857941b3dea1437
Author: Richard Biener <rguent...@suse.de>
Date:   Fri Apr 18 14:52:41 2025 +0200

    tree-optimization/119858 - type mismatch with POINTER_PLUS
    
    The recent PFA early-break vectorization fix left us with a POINTER_PLUS
    and non-sizetype offset.
    
            PR tree-optimization/119858
            * tree-vect-loop.cc (vectorizable_live_operation): Convert
            pointer offset to sizetype.

Diff:
---
 gcc/tree-vect-loop.cc | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index 958b829fa8d1..2d35fa128864 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -11657,8 +11657,12 @@ vectorizable_live_operation (vec_info *vinfo, 
stmt_vec_info stmt_info,
                                    break_lhs_phi);
 
                  if (POINTER_TYPE_P (TREE_TYPE (new_tree)))
-                   tmp2 = gimple_build (&iv_stmts, POINTER_PLUS_EXPR,
-                                        TREE_TYPE (new_tree), new_tree, tmp2);
+                   {
+                     tmp2 = gimple_convert (&iv_stmts, sizetype, tmp2);
+                     tmp2 = gimple_build (&iv_stmts, POINTER_PLUS_EXPR,
+                                          TREE_TYPE (new_tree), new_tree,
+                                          tmp2);
+                   }
                  else
                    {
                      tmp2 = gimple_convert (&iv_stmts, TREE_TYPE (new_tree),