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function.c (assign_parms): Set last_named only for last named argument. 

* function.c (assign_parms): Set last_named only for last named
	argument.

	* g++.dg/other/stdarg1.C: New test.

From-SVN: r47601
This commit is contained in:
Jakub Jelinek 2001-12-04 10:29:54 +01:00 committed by Jakub Jelinek
parent 5402e639e2
commit 108b7d3d31
4 changed files with 49 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-12-04 Jakub Jelinek <jakub@redhat.com>
* function.c (assign_parms): Set last_named only for last named
argument.
2001-12-04 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/install.texi: Use the GFDL. Include years from old install

19
gcc/function.c
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@ -4307,16 +4307,25 @@ assign_parms (fndecl)
tree passed_type = DECL_ARG_TYPE (parm);
tree nominal_type = TREE_TYPE (parm);
int pretend_named;
int last_named = 0, named_arg;
/* Set LAST_NAMED if this is last named arg before some
/* Set LAST_NAMED if this is last named arg before last
anonymous args. */
int last_named = ((TREE_CHAIN (parm) == 0
|| DECL_NAME (TREE_CHAIN (parm)) == 0)
&& (stdarg || current_function_varargs));
if (stdarg || current_function_varargs)
{
tree tem;
for (tem = TREE_CHAIN (parm); tem; tem = TREE_CHAIN (tem))
if (DECL_NAME (tem))
break;
if (tem == 0)
last_named = 1;
}
/* Set NAMED_ARG if this arg should be treated as a named arg. For
most machines, if this is a varargs/stdarg function, then we treat
the last named arg as if it were anonymous too. */
int named_arg = STRICT_ARGUMENT_NAMING ? 1 : ! last_named;
named_arg = STRICT_ARGUMENT_NAMING ? 1 : ! last_named;
if (TREE_TYPE (parm) == error_mark_node
/* This can happen after weird syntax errors

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2001-12-04 Jakub Jelinek <jakub@redhat.com>
* g++.dg/other/stdarg1.C: New test.
2001-12-03 Janis Johnson <janis187@us.ibm.com>
* gcc.c-torture/execute/builtin-prefetch-1.c: New test.

26
gcc/testsuite/g++.dg/other/stdarg1.C Normal file
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@ -0,0 +1,26 @@
// Test stdarg function with anonymous argument
// { dg-do run }
#include <stdarg.h>
extern "C" void abort (void);
void baz (va_list list)
{
if (va_arg (list, long) != 3)
abort ();
}
void foo (long p1, long, long p2, ...)
{
va_list list;
va_start (list, p2);
baz (list);
va_end (list);
}
int main ()
{
foo (0, 1, 2, 3);
return 0;
}