* Makefile.in (cs-tconfig.h): Pass USED_FOR_TARGET to mkconfig.sh

[pf3gnuchains/gcc-fork.git] / gcc / tree.h

diff --git a/gcc/tree.h b/gcc/tree.h
index 33d4d29..4600d51 100644 (file)
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -443,7 +443,7 @@ struct tree_common GTY(())
 #define TREE_SET_CODE(NODE, VALUE) ((NODE)->common.code = (VALUE))
 
 /* When checking is enabled, errors will be generated if a tree node
-   is accessed incorrectly. The macros abort with a fatal error.  */
+   is accessed incorrectly. The macros die with a fatal error.  */
 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
 
 #define TREE_CHECK(T, CODE) __extension__                              \
@@ -907,6 +907,9 @@ extern void tree_operand_check_failed (int, enum tree_code,
    its address should be of type `volatile WHATEVER *'.
    In other words, the declared item is volatile qualified.
    This is used in _DECL nodes and _REF nodes.
+   On a FUNCTION_DECL node, this means the function does not
+   return normally.  This is the same effect as setting
+   the attribute noreturn on the function in C.
 
    In a ..._TYPE node, means this type is volatile-qualified.
    But use TYPE_VOLATILE instead of this macro when the node is a type,
@@ -1352,13 +1355,13 @@ struct value_range_def;
 
 /* Immediate use linking structure.  This structure is used for maintaining
    a doubly linked list of uses of an SSA_NAME.  */
-typedef struct ssa_imm_use_d GTY(())
+typedef struct ssa_use_operand_d GTY(())
 {
-  struct ssa_imm_use_d* GTY((skip(""))) prev;
-  struct ssa_imm_use_d* GTY((skip(""))) next;
+  struct ssa_use_operand_d* GTY((skip(""))) prev;
+  struct ssa_use_operand_d* GTY((skip(""))) next;
   tree GTY((skip(""))) stmt;
   tree *GTY((skip(""))) use;
-} ssa_imm_use_t;
+} ssa_use_operand_t;
 
 /* Return the immediate_use information for an SSA_NAME. */
 #define SSA_NAME_IMM_USE_NODE(NODE) SSA_NAME_CHECK (NODE)->ssa_name.imm_uses
@@ -1390,7 +1393,7 @@ struct tree_ssa_name GTY(())
   PTR GTY((skip)) aux;
 
   /* Immediate uses list for this SSA_NAME.  */
-  struct ssa_imm_use_d imm_uses;
+  struct ssa_use_operand_d imm_uses;
 };
 \f
 /* In a PHI_NODE node.  */
@@ -1417,11 +1420,11 @@ struct tree_ssa_name GTY(())
 #define PHI_BB(NODE)                   PHI_NODE_CHECK (NODE)->phi.bb
 #define PHI_ARG_IMM_USE_NODE(NODE, I)  PHI_NODE_ELT_CHECK (NODE, I).imm_use
 
-struct edge_def;
-
 struct phi_arg_d GTY(())
 {
-  struct ssa_imm_use_d imm_use;        /* imm_use MUST be first element in struct.  */
+  /* imm_use MUST be the first element in struct because we do some
+     pointer arithmetic with it.  See phi_arg_index_from_use.  */
+  struct ssa_use_operand_d imm_use;
   tree def;
   bool nonzero;
 };
@@ -1436,6 +1439,8 @@ struct tree_phi_node GTY(())
   /* Basic block to that the phi node belongs.  */
   struct basic_block_def *bb;
 
+  /* Arguments of the PHI node.  These are maintained in the same
+     order as predecessor edge vector BB->PREDS.  */
   struct phi_arg_d GTY ((length ("((tree)&%h)->phi.num_args"))) a[1];
 };
 \f
@@ -2833,13 +2838,6 @@ extern void replace_ssa_name_symbol (tree, tree);
 extern void ssanames_print_statistics (void);
 #endif
 
-extern void mark_for_rewrite (tree);
-extern void unmark_all_for_rewrite (void);
-extern bool marked_for_rewrite_p (tree);
-extern bool any_marked_for_rewrite_p (void);
-extern struct bitmap_head_def *marked_ssa_names (void);
-
-
 /* Return the (unique) IDENTIFIER_NODE node for a given name.
    The name is supplied as a char *.  */
 
@@ -2905,8 +2903,9 @@ extern tree build_string (int, const char *);
 extern tree build_tree_list_stat (tree, tree MEM_STAT_DECL);
 #define build_tree_list(t,q) build_tree_list_stat(t,q MEM_STAT_INFO)
 extern tree build_decl_stat (enum tree_code, tree, tree MEM_STAT_DECL);
+extern tree build_fn_decl (const char *, tree); 
 #define build_decl(c,t,q) build_decl_stat (c,t,q MEM_STAT_INFO)
-extern tree build_block (tree, tree, tree, tree, tree);
+extern tree build_block (tree, tree, tree, tree);
 #ifndef USE_MAPPED_LOCATION
 extern void annotate_with_file_line (tree, const char *, int);
 extern void annotate_with_locus (tree, location_t);
@@ -3517,6 +3516,9 @@ extern void using_eh_for_cleanups (void);
    subexpressions are not changed.  */
 
 extern tree fold (tree);
+extern tree fold_unary (enum tree_code, tree, tree);
+extern tree fold_binary (enum tree_code, tree, tree, tree);
+extern tree fold_ternary (enum tree_code, tree, tree, tree, tree);
 extern tree fold_build1 (enum tree_code, tree, tree);
 extern tree fold_build2 (enum tree_code, tree, tree, tree);
 extern tree fold_build3 (enum tree_code, tree, tree, tree, tree);