Removal of Return with Depressed Stack Pointer support

	Removal of Return with Depressed Stack Pointer support
	* tree.h (TYPE_RETURNS_STACK_DEPRESSED): Delete.
	(ECF_SP_DEPRESSED): Likewise.
	(ECF_LIBCALL_BLOCK, ECF_NOVOPS): Adjust.
	* calls.c (emit_call_1): Do not test ECF_SP_DEPRESSED.
	(flags_from_decl_or_type): Do not test TYPE_RETURNS_STACK_DEPRESSED.
	(expand_call): Do not test ECF_SP_DEPRESSED.
	* dse.c (dse_step0): Do not test TYPE_RETURNS_STACK_DEPRESSED.
	* function.c (keep_stack_depressed): Delete.
	(handle_epilogue_set): Likewise.
	(update_epilogue_consts): Likewise.
	(emit_equiv_load): Likewise.
	(thread_prologue_and_epilogue_insns): Remove support for Return with
	Depressed Stack Pointer.
	* print-tree.c (print_node): Do not test TYPE_RETURNS_STACK_DEPRESSED.

ada/
	* gigi.h (create_subprog_type): Remove returns_with_dsp parameter.
	* decl.c (gnat_to_gnu_entity): Adjust for above new prototype.
	* utils.c (create_subprog_type): Remove returns_with_dsp parameter.
	* trans.c (gnat_to_gnu) <N_Return_Statement>: Remove code dealing with
	Return by Depressed Stack Pointer.

From-SVN: r133976

1 files changed, 2 insertions, 10 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index 9eac3e8..3d87a72 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -2207,11 +2207,6 @@ struct tree_block GTY(())
 #define TYPE_IS_SIZETYPE(NODE) \
   (INTEGER_TYPE_CHECK (NODE)->type.no_force_blk_flag)
 
-/* In a FUNCTION_TYPE, indicates that the function returns with the stack
-   pointer depressed.  */
-#define TYPE_RETURNS_STACK_DEPRESSED(NODE) \
-  (FUNCTION_TYPE_CHECK (NODE)->type.no_force_blk_flag)
-
 /* Nonzero in a type considered volatile as a whole.  */
 #define TYPE_VOLATILE(NODE) (TYPE_CHECK (NODE)->base.volatile_flag)
 
@@ -5002,14 +4997,11 @@ extern tree build_duplicate_type (tree);
 /* Nonzero if this is a call to "pure" function (like const function,
    but may read memory.  */
 #define ECF_PURE		128
-/* Nonzero if this is a call to a function that returns with the stack
-   pointer depressed.  */
-#define ECF_SP_DEPRESSED	256
 /* Create libcall block around the call.  */
-#define ECF_LIBCALL_BLOCK	512
+#define ECF_LIBCALL_BLOCK	256
 /* Function does not read or write memory (but may have side effects, so
    it does not necessarily fit ECF_CONST).  */
-#define ECF_NOVOPS		1024
+#define ECF_NOVOPS		512
 
 extern int flags_from_decl_or_type (const_tree);
 extern int call_expr_flags (const_tree);