Explicitly list all tree codes in gcc/tree-streamer.c:record_common_node
gcc/ * tree-streamer.c (record_common_node): Explicitly list expected tree codes. From-SVN: r241246
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2016-10-17 Thomas Schwinge <thomas@codesourcery.com>
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* tree-streamer.c (record_common_node): Explicitly list expected
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tree codes.
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2016-10-17 Richard Biener <rguenther@suse.de>
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PR tree-optimization/77988
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@ -277,12 +277,28 @@ record_common_node (struct streamer_tree_cache_d *cache, tree node)
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in the cache as hash value. */
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streamer_tree_cache_append (cache, node, cache->nodes.length ());
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if (POINTER_TYPE_P (node)
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|| TREE_CODE (node) == COMPLEX_TYPE
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|| TREE_CODE (node) == ARRAY_TYPE)
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record_common_node (cache, TREE_TYPE (node));
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else if (TREE_CODE (node) == RECORD_TYPE)
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switch (TREE_CODE (node))
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{
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case ERROR_MARK:
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case FIELD_DECL:
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case FIXED_POINT_TYPE:
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case IDENTIFIER_NODE:
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case INTEGER_CST:
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case INTEGER_TYPE:
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case POINTER_BOUNDS_TYPE:
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case REAL_TYPE:
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case TREE_LIST:
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case VOID_CST:
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case VOID_TYPE:
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/* No recursive trees. */
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break;
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case ARRAY_TYPE:
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case COMPLEX_TYPE:
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case POINTER_TYPE:
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case REFERENCE_TYPE:
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record_common_node (cache, TREE_TYPE (node));
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break;
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case RECORD_TYPE:
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/* The FIELD_DECLs of structures should be shared, so that every
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COMPONENT_REF uses the same tree node when referencing a field.
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Pointer equality between FIELD_DECLs is used by the alias
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@ -291,6 +307,10 @@ record_common_node (struct streamer_tree_cache_d *cache, tree node)
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nonoverlapping_component_refs_of_decl_p). */
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for (tree f = TYPE_FIELDS (node); f; f = TREE_CHAIN (f))
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record_common_node (cache, f);
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break;
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default:
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/* Unexpected tree code. */
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gcc_unreachable ();
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}
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}
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