[Bug tree-optimization/107672] [13 Regression] ICE during GIMPLE pass: slp

["rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107672

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
It looks like the code looks for a vector type even ...  I'm going to test

diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index bc0ef136f19..b35b986889d 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -12195,9 +12195,15 @@ supportable_widening_operation (vec_info *vinfo,
        intermediate_type
          = vect_halve_mask_nunits (prev_type, intermediate_mode);
       else
-       intermediate_type
-         = lang_hooks.types.type_for_mode (intermediate_mode,
-                                           TYPE_UNSIGNED (prev_type));
+       {
+         gcc_assert (VECTOR_MODE_P (intermediate_mode));
+         tree intermediate_element_type
+           = lang_hooks.types.type_for_mode (GET_MODE_INNER
(intermediate_mode),
+                                             TYPE_UNSIGNED (prev_type));
+         intermediate_type
+           = build_vector_type_for_mode (intermediate_element_type,
+                                         intermediate_mode);
+       }

       if (VECTOR_BOOLEAN_TYPE_P (intermediate_type)
          && VECTOR_BOOLEAN_TYPE_P (prev_type)

can you check if that helps the Java frontend here?