config.gcc (extra_headers): Add cross-stdarg.h for target x86_64-*-* and i?86-*-*.

2008-07-06  Kai Tietz  <kai.tietz@onevision.com>

	* config.gcc (extra_headers): Add cross-stdarg.h for target
	x86_64-*-* and i?86-*-*.
	* config/i386/cross-stdarg.h: New.
	* builtins.c (std_fn_abi_va_list): New.
	(std_canonical_va_list_type): New.
	(stabilize_va_list): Replace va_list_type_node use by
	mtarget.canonical_va_list_type.
	(gimplify_va_arg_expr): Likewise.
	(expand_builtin_va_copy): Replace va_list_type_node use by
	mtarget.fn_abi_va_list.
	* tree-sra.c (is_va_list_type): New helper.
	(decl_can_be_decomposed_p): Replace
	va_list_type_node use by is_va_list_type.
	* tree-ssa-ccp.c (optimize_stdarg_builtin): Likewise.
	* tree-stdarg.c (execute_optimize_stdarg): Likewise.
	* c-common.c (c_common_nodes_and_builtins): Use TARGET_ENUM_VA_LIST.
	* config/i386/i386-protos.h (ix86_get_valist_type): New.
	(ix86_enum_va_list): New.
	* config/i386/i386.c (sysv_va_list_type_node): New.
	(ms_va_list_type_node): New.
	(ix86_function_type_abi): Remove sorry.
	(ix86_build_builtin_va_list_abi): New.
	(ix86_build_builtin_va_list): Call ix86_build_builtin_va_list_abi
	for 64-bit targets.
	(ix86_va_start): Replace va_list_type_node by sysv_va_list_type_node.
	(ix86_init_builtins_va_builtins_abi): New.
	(ix86_init_builtins): Use ix86_init_builtins_va_builtins_abi
	for 64-bit targets.
	(ix86_handle_abi_attribute): New.
	(attribute_spec): Add sysv_abi and ms_abi.
	(ix86_fn_abi_va_list): New.
	(ix86_canonical_va_list_type): New.
	(ix86_enum_va_list): New.
	(TARGET_FN_ABI_VA_LIST): New.
	(TARGET_CANONICAL_VA_LIST_TYPE): New.
	* config/i386/i386.h (TARGET_ENUM_VA_LIST): New.
	* doc/tm.texi (TARGET_FN_ABI_VA_LIST): New.
	(TARGET_CANONICAL_VA_LIST_TYPE): New.
	(TARGET_ENUM_VA_LIST): New.
	* expr.h (std_fn_abi_va_list): New.
	(std_canonical_va_list_type): New.
	* target-def.h (TARGET_FN_ABI_VA_LIST): New.
	(TARGET_CANONICAL_VA_LIST_TYPE): New.
	(TARGET_INITIALIZER): Add TARGET_FN_ABI_VA_LIST and
	TARGET_CANONICAL_VA_LIST_TYPE.
	* target.h (struct gcc_target): Add fn_abi_va_list hook
	and canonical_va_list_type hook.

From-SVN: r137525

1 files changed, 26 insertions, 0 deletions

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index d4ba0e2..b5418a3 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -4187,6 +4187,18 @@ This hook returns a type node for @code{va_list} for the target.
 The default version of the hook returns @code{void*}.
 @end deftypefn
 
+@deftypefn {Target Hook} tree TARGET_FN_ABI_VA_LIST (tree @var{fndecl})
+This hook returns the va_list type of the calling convention specified by
+@var{fndecl}.
+The default version of this hook returns @code{va_list_type_node}.
+@end deftypefn
+
+@deftypefn {Target Hook} tree TARGET_CANONICAL_VA_LIST_TYPE (tree @var{type})
+This hook returns the va_list type of the calling convention specified by the
+type of @var{type}. If @var{type} is not a valid va_list type, it returns
+@code{NULL_TREE}.
+@end deftypefn
+
 @deftypefn {Target Hook} tree TARGET_GIMPLIFY_VA_ARG_EXPR (tree @var{valist}, tree @var{type}, tree *@var{pre_p}, tree *@var{post_p})
 This hook performs target-specific gimplification of
 @code{VA_ARG_EXPR}.  The first two parameters correspond to the
@@ -4317,6 +4329,20 @@ function use different registers for the return value, this macro
 should recognize only the caller's register numbers.
 @end defmac
 
+@defmac TARGET_ENUM_VA_LIST (@var{idx}, @var{pname}, @var{ptype})
+This target macro is used in function @code{c_common_nodes_and_builtins}
+to iterate through the target specific builtin types for va_list. The
+variable @var{idx} is used as iterator. @var{pname} has to be a pointer
+to a @code{const char *} and @var{ptype} a pointer to a @code{tree} typed
+variable.
+The arguments @var{pname} and @var{ptype} are used to store the result of
+this macro and are set to the name of the va_list builtin type and its
+internal type.
+If the return value of this macro is zero, then there is no more element.
+Otherwise the @var{IDX} should be increased for the next call of this
+macro to iterate through all types.
+@end defmac
+
 @defmac APPLY_RESULT_SIZE
 Define this macro if @samp{untyped_call} and @samp{untyped_return}
 need more space than is implied by @code{FUNCTION_VALUE_REGNO_P} for