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-rw-r--r--gcc/compare-types.h23
1 files changed, 15 insertions, 8 deletions
diff --git a/gcc/compare-types.h b/gcc/compare-types.h
index 2c690fc3081..384819ce2d7 100644
--- a/gcc/compare-types.h
+++ b/gcc/compare-types.h
@@ -1,11 +1,18 @@
#pragma once
+
namespace test_type_equality { void run_tests(); };
-extern bool eq_identifier(const_tree a, const_tree b);
-extern bool eq_pointer(const_tree a, const_tree b);
-extern bool eq_main_variant(const_tree a, const_tree b);
-extern bool eq_canonical(const_tree a, const_tree b);
-extern bool eq_canonical_internal(const_tree a, const_tree b);
-extern bool eq_type_compare(const_tree a, const_tree b);
-extern bool eq_type_structural(const_tree a, const_tree b);
-extern bool eq_types(const_tree a, const_tree b, const bool force_structural = false);
+
+static constexpr unsigned not_equal = 0;
+static constexpr unsigned equal_incomplete = 1 << 1;
+// equal should be the last one
+static constexpr unsigned equal = 1 << 2;
+
+extern unsigned eq_identifier(const_tree a, const_tree b);
+extern unsigned eq_pointer(const_tree a, const_tree b);
+extern unsigned eq_main_variant(const_tree a, const_tree b);
+extern unsigned eq_canonical(const_tree a, const_tree b);
+extern unsigned eq_canonical_internal(const_tree a, const_tree b);
+extern unsigned eq_type_compare(const_tree a, const_tree b);
+extern unsigned eq_type_structural(const_tree a, const_tree b);
+extern unsigned eq_types(const_tree a, const_tree b, const bool force_structural = false);