make TS_BLOCK a substructure of TS_BASE

make TS_BLOCK a substructure of TS_BASE
gcc/
	* tree.c (initialize_tree_contains_struct): Mark TS_BLOCK as
	TS_BASE instead of TS_COMMON.
	(find_decls_types_r): Check for TS_TYPED structure before looking at
	TREE_TYPE.
	* tree.h (struct tree_block): Inherit from tree_base, not tree_common.
	Add chain field.
	(BLOCK_CHAIN): Use new chain field.

gcc/c-family/
	* c-common.c (warning_candidate_p): Check for BLOCKs.

gcc/java/
	* decl.c (poplevel): Don't access TREE_TYPE of BLOCKs.
	* expr.c (build_jni_stub): Likewise.

From-SVN: r174300

1 files changed, 3 insertions, 4 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index ce01fb7..e214b12 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -2051,9 +2051,7 @@ struct GTY(()) tree_omp_clause {
   VEC_index (tree, BLOCK_NONLOCALIZED_VARS (NODE), N)
 #define BLOCK_SUBBLOCKS(NODE) (BLOCK_CHECK (NODE)->block.subblocks)
 #define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext)
-/* Note: when changing this, make sure to find the places
-   that use chainon or nreverse.  */
-#define BLOCK_CHAIN(NODE) TREE_CHAIN (BLOCK_CHECK (NODE))
+#define BLOCK_CHAIN(NODE) (BLOCK_CHECK (NODE)->block.chain)
 #define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin)
 #define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag)
 
@@ -2094,7 +2092,8 @@ struct GTY(()) tree_omp_clause {
 #define BLOCK_SOURCE_LOCATION(NODE) (BLOCK_CHECK (NODE)->block.locus)
 
 struct GTY(()) tree_block {
-  struct tree_common common;
+  struct tree_base base;
+  tree chain;
 
   unsigned abstract_flag : 1;
   unsigned block_num : 31;