}
}
+/* Create a new suitable default definition SSA_NAME and replace all uses of
+ SSA with it. */
+
+static void
+replace_uses_with_default_def_ssa_name (tree ssa)
+{
+ tree repl, decl = SSA_NAME_VAR (ssa);
+ if (TREE_CODE (decl) == PARM_DECL)
+ {
+ tree tmp = create_tmp_var (TREE_TYPE (decl), "SR");
+ if (TREE_CODE (TREE_TYPE (tmp)) == COMPLEX_TYPE
+ || TREE_CODE (TREE_TYPE (tmp)) == VECTOR_TYPE)
+ DECL_GIMPLE_REG_P (tmp) = 1;
+
+ get_var_ann (tmp);
+ add_referenced_var (tmp);
+ repl = make_ssa_name (tmp, gimple_build_nop ());
+ set_default_def (tmp, repl);
+ }
+ else
+ {
+ repl = gimple_default_def (cfun, decl);
+ if (!repl)
+ {
+ repl = make_ssa_name (decl, gimple_build_nop ());
+ set_default_def (decl, repl);
+ }
+ }
+
+ replace_uses_by (ssa, repl);
+}
/* Callback of scan_function to process assign statements. It examines both
sides of the statement, replaces them with a scalare replacement if there is
}
else
{
- if (access_has_children_p (racc))
+ if (racc)
{
- if (!racc->grp_unscalarized_data
- /* Do not remove SSA name definitions (PR 42704). */
- && TREE_CODE (lhs) != SSA_NAME)
+ if (!racc->grp_to_be_replaced && !racc->grp_unscalarized_data)
{
- generate_subtree_copies (racc->first_child, lhs,
- racc->offset, 0, 0, gsi,
- false, false);
+ if (racc->first_child)
+ generate_subtree_copies (racc->first_child, lhs,
+ racc->offset, 0, 0, gsi,
+ false, false);
gcc_assert (*stmt == gsi_stmt (*gsi));
+ if (TREE_CODE (lhs) == SSA_NAME)
+ replace_uses_with_default_def_ssa_name (lhs);
+
unlink_stmt_vdef (*stmt);
gsi_remove (gsi, true);
sra_stats.deleted++;
return SRA_SA_REMOVED;
}
- else
+ else if (racc->first_child)
generate_subtree_copies (racc->first_child, lhs,
racc->offset, 0, 0, gsi, false, true);
}
- else if (access_has_children_p (lacc))
+ if (access_has_children_p (lacc))
generate_subtree_copies (lacc->first_child, rhs, lacc->offset,
0, 0, gsi, true, true);
}