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(current_function_stdarg): New global variable.

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(push_function_context_to): Save it.
(pop_function_context_from): Restore it.
(assign_parms): Set it.
(init_function_start): Clear it.

From-SVN: r10123
This commit is contained in:
Richard Kenner 1995-07-14 08:03:09 -04:00
parent 7da7e61109
commit ebb904cbbe
1 changed files with 11 additions and 1 deletions
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12
gcc/function.c
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@ -168,6 +168,11 @@ rtx current_function_arg_offset_rtx;
int current_function_varargs; int current_function_varargs;
/* Nonzero if current function uses stdarg.h or equivalent.
Zero for functions that use varargs.h. */
int current_function_stdarg;
/* Quantities of various kinds of registers /* Quantities of various kinds of registers
used for the current function's args. */ used for the current function's args. */
@ -487,6 +492,7 @@ push_function_context_to (context)
p->pretend_args_size = current_function_pretend_args_size; p->pretend_args_size = current_function_pretend_args_size;
p->arg_offset_rtx = current_function_arg_offset_rtx; p->arg_offset_rtx = current_function_arg_offset_rtx;
p->varargs = current_function_varargs; p->varargs = current_function_varargs;
p->stdarg = current_function_stdarg;
p->uses_const_pool = current_function_uses_const_pool; p->uses_const_pool = current_function_uses_const_pool;
p->uses_pic_offset_table = current_function_uses_pic_offset_table; p->uses_pic_offset_table = current_function_uses_pic_offset_table;
p->internal_arg_pointer = current_function_internal_arg_pointer; p->internal_arg_pointer = current_function_internal_arg_pointer;
@ -563,6 +569,7 @@ pop_function_context_from (context)
current_function_pretend_args_size = p->pretend_args_size; current_function_pretend_args_size = p->pretend_args_size;
current_function_arg_offset_rtx = p->arg_offset_rtx; current_function_arg_offset_rtx = p->arg_offset_rtx;
current_function_varargs = p->varargs; current_function_varargs = p->varargs;
current_function_stdarg = p->stdarg;
current_function_uses_const_pool = p->uses_const_pool; current_function_uses_const_pool = p->uses_const_pool;
current_function_uses_pic_offset_table = p->uses_pic_offset_table; current_function_uses_pic_offset_table = p->uses_pic_offset_table;
current_function_internal_arg_pointer = p->internal_arg_pointer; current_function_internal_arg_pointer = p->internal_arg_pointer;
@ -3169,6 +3176,8 @@ assign_parms (fndecl, second_time)
&& (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype))) && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype)))
!= void_type_node)); != void_type_node));
current_function_stdarg = stdarg;
/* If the reg that the virtual arg pointer will be translated into is /* If the reg that the virtual arg pointer will be translated into is
not a fixed reg or is the stack pointer, make a copy of the virtual not a fixed reg or is the stack pointer, make a copy of the virtual
arg pointer, and address parms via the copy. The frame pointer is arg pointer, and address parms via the copy. The frame pointer is
@ -4834,8 +4843,9 @@ init_function_start (subr, filename, line)
/* Indicate we have no need of a frame pointer yet. */ /* Indicate we have no need of a frame pointer yet. */
frame_pointer_needed = 0; frame_pointer_needed = 0;
/* By default assume not varargs. */ /* By default assume not varargs or stdarg. */
current_function_varargs = 0; current_function_varargs = 0;
current_function_stdarg = 0;
} }
/* Indicate that the current function uses extra args /* Indicate that the current function uses extra args