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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
This commit is contained in:
Thomas Schwinge 2016-10-17 17:56:22 +02:00 committed by Thomas Schwinge
parent 12d3f34b33
commit 80b841ba52
2 changed files with 30 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2016-10-17 Thomas Schwinge <thomas@codesourcery.com>
* tree-streamer.c (record_common_node): Explicitly list expected
tree codes.
2016-10-17 Richard Biener <rguenther@suse.de> 2016-10-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/77988 PR tree-optimization/77988

30
gcc/tree-streamer.c
View File

@ -277,12 +277,28 @@ record_common_node (struct streamer_tree_cache_d *cache, tree node)
in the cache as hash value. */ in the cache as hash value. */
streamer_tree_cache_append (cache, node, cache->nodes.length ()); streamer_tree_cache_append (cache, node, cache->nodes.length ());
if (POINTER_TYPE_P (node) switch (TREE_CODE (node))
|| TREE_CODE (node) == COMPLEX_TYPE
|| TREE_CODE (node) == ARRAY_TYPE)
record_common_node (cache, TREE_TYPE (node));
else if (TREE_CODE (node) == RECORD_TYPE)
{ {
case ERROR_MARK:
case FIELD_DECL:
case FIXED_POINT_TYPE:
case IDENTIFIER_NODE:
case INTEGER_CST:
case INTEGER_TYPE:
case POINTER_BOUNDS_TYPE:
case REAL_TYPE:
case TREE_LIST:
case VOID_CST:
case VOID_TYPE:
/* No recursive trees. */
break;
case ARRAY_TYPE:
case COMPLEX_TYPE:
case POINTER_TYPE:
case REFERENCE_TYPE:
record_common_node (cache, TREE_TYPE (node));
break;
case RECORD_TYPE:
/* The FIELD_DECLs of structures should be shared, so that every /* The FIELD_DECLs of structures should be shared, so that every
COMPONENT_REF uses the same tree node when referencing a field. COMPONENT_REF uses the same tree node when referencing a field.
Pointer equality between FIELD_DECLs is used by the alias Pointer equality between FIELD_DECLs is used by the alias
@ -291,6 +307,10 @@ record_common_node (struct streamer_tree_cache_d *cache, tree node)
nonoverlapping_component_refs_of_decl_p). */ nonoverlapping_component_refs_of_decl_p). */
for (tree f = TYPE_FIELDS (node); f; f = TREE_CHAIN (f)) for (tree f = TYPE_FIELDS (node); f; f = TREE_CHAIN (f))
record_common_node (cache, f); record_common_node (cache, f);
break;
default:
/* Unexpected tree code. */
gcc_unreachable ();
} }
} }