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Subject: [Bug tree-optimization/50902] [4.7 Regression] intVar/dinternal.cc ICEs at -O2 -ftree-vectorize
Date: Tue, 01 Nov 2011 13:08:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50902

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-11-01 13:06:57 UTC ---
Mine.

Index: gcc/tree-vect-stmts.c
===================================================================
--- gcc/tree-vect-stmts.c    (revision 180737)
+++ gcc/tree-vect-stmts.c    (working copy)
@@ -4726,11 +4726,20 @@
           /* 4. Handle invariant-load.  */
           if (inv_p && !bb_vinfo)
         {
-          tree vec_inv;
+          tree tem, vec_inv;
           gimple_stmt_iterator gsi2 = *gsi;
           gcc_assert (!strided_load);
           gsi_next (&gsi2);
-          vec_inv = build_vector_from_val (vectype, scalar_dest);
+          tem = scalar_dest;
+          if (!useless_type_conversion_p (TREE_TYPE (vectype),
+                          TREE_TYPE (tem)))
+            {
+              tem = fold_convert (TREE_TYPE (vectype), tem);
+              tem = force_gimple_operand_gsi (&gsi2, tem, true,
+                              NULL_TREE, true,
+                              GSI_SAME_STMT);
+            }
+          vec_inv = build_vector_from_val (vectype, tem);
           new_temp = vect_init_vector (stmt, vec_inv,
                            vectype, &gsi2);
           new_stmt = SSA_NAME_DEF_STMT (new_temp);