re PR rtl-optimization/12180 (Inline optimization fails for variadic function)

	PR optimization/12180
	* tree-inline.c (inline_forbidden_p_1): Do not permit inlining of
	functions containing calls to

	PR optimization/12180
	* gcc.dg/20031002-1.c: New test.

From-SVN: r72057

gcc/ChangeLog

+2003-10-02  Mark Mitchell  <mark@codesourcery.com>
+
+	PR optimization/12180
+	* tree-inline.c (inline_forbidden_p_1): Do not permit inlining of
+	functions containing calls to 
+
 2003-10-02  Chris Demetriou  <cgd@broadcom.com>
 
 	* config/mips/mips.c (mips_emit_prefetch): Use operand 3

gcc/testsuite/ChangeLog

 2003-10-02  Mark Mitchell  <mark@codesourcery.com>
 
+	PR optimization/12180
+	* gcc.dg/20031002-1.c: New test.
+
 	PR c++/12486
 	* g++.dg/inherit/error1.C: New test.
 

gcc/testsuite/gcc.dg/20031002-1.c

+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+void generic_sendmsg (char *fmt, ...)
+{
+  __builtin_next_arg(fmt);
+}
+
+void generic_sendstat()
+{
+  double t;
+
+  generic_sendmsg("F %3.2f", t);
+}

gcc/tree-inline.c

@@ -922,6 +922,8 @@ inline_forbidden_p_1 (tree *nodep, int *walk_subtrees ATTRIBUTE_UNUSED,
 	     arguments.  */
 	case BUILT_IN_VA_START:
 	case BUILT_IN_STDARG_START:
+	case BUILT_IN_NEXT_ARG:
+	case BUILT_IN_VA_END:
 	  {
 	    inline_forbidden_reason
 	      = N_("%Jfunction '%F' can never be inlined because it "