1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/tree-ssa-dse.h b/gcc/tree-ssa-dse.h
new file mode 100644
index 00000000000..a5eccbd746d
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+++ b/gcc/tree-ssa-dse.h
@@ -0,0 +1,36 @@
+/* Support routines for dead store elimination. 
+   Copyright (C) 2019 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_TREE_SSA_DSE_H
+#define GCC_TREE_SSA_DSE_H
+
+/* Return value from dse_classify_store */
+enum dse_store_status
+{
+  DSE_STORE_LIVE,
+  DSE_STORE_MAYBE_PARTIAL_DEAD,
+  DSE_STORE_DEAD
+};
+
+dse_store_status dse_classify_store (ao_ref *, gimple *, bool, sbitmap,
+				     bool * = NULL, tree = NULL);
+
+void delete_dead_or_redundant_assignment (gimple_stmt_iterator *, const char *);
+
+#endif   /* GCC_TREE_SSA_DSE_H  */