http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46259
--- Comment #5 from froydnj at codesourcery dot com <froydnj at codesourcery
dot com> 2010-11-01 14:57:32 UTC ---
If I had to guess, one of these two hunks is probably responsible:
--- trunk/gcc/tree-vect-loop.c 2010/10/31 01:58:12 166101
+++ trunk/gcc/tree-vect-loop.c 2010/10/31 02:20:22 166102
@@ -3021,14 +3017,7 @@
break;
}
- for (i = nunits - 1; i >= 0; --i)
- t = tree_cons (NULL_TREE, init_value, t);
-
- if (TREE_CONSTANT (init_val))
- init_def = build_vector (vectype, t);
- else
- init_def = build_constructor_from_list (vectype, t);
-
+ init_def = build_vector_from_val (vectype, init_value);
break;
default:
--- trunk/gcc/tree-vect-stmts.c 2010/10/31 01:58:12 166101
+++ trunk/gcc/tree-vect-stmts.c 2010/10/31 02:20:22 166102
@@ -987,9 +987,7 @@
loop_vec_info loop_vinfo = STMT_VINFO_LOOP_VINFO (stmt_vinfo);
tree vec_inv;
tree vec_cst;
- tree t = NULL_TREE;
tree def;
- int i;
enum vect_def_type dt;
bool is_simple_use;
tree vector_type;
@@ -1055,13 +1049,7 @@
if (vect_print_dump_info (REPORT_DETAILS))
fprintf (vect_dump, "Create vector_inv.");
- for (i = nunits - 1; i >= 0; --i)
- {
- t = tree_cons (NULL_TREE, def, t);
- }
-
- /* FIXME: use build_constructor directly. */
- vec_inv = build_constructor_from_list (vector_type, t);
+ vec_inv = build_vector_from_val (vector_type, def);
return vect_init_vector (stmt, vec_inv, vector_type, NULL);
}
Can you try reverting each one individually and see if those fix the
problem? Thanks.
