function.h (struct function): Remove calls_longjmp.

	* function.h (struct function): Remove calls_longjmp.
	(current_function_calls_longjmp): Delete.
	* tree.h (ECF_LONGJMP): Delete.
	(ECF_SIBCALL, ECF_PURE, ECF_SP_DEPRESSED, ECF_ALWAYS_RETURN)
	(ECF_LIBCALL_BLOCK): Everybody slide down one.
	(ECF_CONST, ECF_NORETURN, ECF_SIBCALL): Clarify comments.
	* builtins.c (expand_builtin_longjmp): Don't set
	current_function_calls_longjmp.
	* calls.c (special_function_p): Mark longjmp and siglongjmp
	with ECF_NORETURN, not ECF_LONGJMP.
	(emit_call_1, expand_call, emit_library_call_value_1):
	Don't check for ECF_LONGJMP.
	* tree-cfg.c (make_exit_edges, is_ctrl_altering_stmt)
	(need_fake_edge_p): Likewise.

	* config/avr/avr.h, config/ip2k/ip2k.h: Don't define NON_SAVING_SETJMP.
	* system.h: Poison NON_SAVING_SETJMP.
	* function.c (use_register_for_decl)
	* gcse.c (compute_hash_table_work, compute_store_table)
	* postreload-gcse.c (record_opr_changes)
	* reload.c (find_equiv_reg)
	* reload1.c (reload)
	* config/i386/i386.c (ix86_can_use_return_insn_p):
	Remove code conditional on NON_SAVING_SETJMP.
	* doc/tm.texi: Delete documentation of NON_SAVING_SETJMP.

	* config/i386/sysv3.h: Delete file.
	* config/i386/i386.c (ix86_svr3_asm_out_constructor): Delete.

From-SVN: r91101

1 files changed, 10 insertions, 11 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index dc4a9d4..aa533a4 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -3648,9 +3648,11 @@ extern rtx emit_line_note (location_t);
 
 /* In calls.c */
 
-/* Nonzero if this is a call to a `const' function.  */
+/* Nonzero if this is a call to a function whose return value depends
+   solely on its arguments, has no side effects, and does not read
+   global memory.  */
 #define ECF_CONST		1
-/* Nonzero if this is a call to a `volatile' function.  */
+/* Nonzero if this call will never return.  */
 #define ECF_NORETURN		2
 /* Nonzero if this is a call to malloc or a related function.  */
 #define ECF_MALLOC		4
@@ -3660,21 +3662,18 @@ extern rtx emit_line_note (location_t);
 #define ECF_NOTHROW		16
 /* Nonzero if this is a call to setjmp or a related function.  */
 #define ECF_RETURNS_TWICE	32
-/* Nonzero if this is a call to `longjmp'.  */
-#define ECF_LONGJMP		64
-/* Nonzero if this is a syscall that makes a new process in the image of
-   the current one.  */
-#define ECF_SIBCALL		128
+/* Nonzero if this call replaces the current stack frame.  */
+#define ECF_SIBCALL		64
 /* Nonzero if this is a call to "pure" function (like const function,
    but may read memory.  */
-#define ECF_PURE		256
+#define ECF_PURE		128
 /* Nonzero if this is a call to a function that returns with the stack
    pointer depressed.  */
-#define ECF_SP_DEPRESSED	512
+#define ECF_SP_DEPRESSED	256
 /* Nonzero if this call is known to always return.  */
-#define ECF_ALWAYS_RETURN	1024
+#define ECF_ALWAYS_RETURN	512
 /* Create libcall block around the call.  */
-#define ECF_LIBCALL_BLOCK	2048
+#define ECF_LIBCALL_BLOCK	1024
 
 extern int flags_from_decl_or_type (tree);
 extern int call_expr_flags (tree);