PTX doesn't support sibcalls, so this test is doomed to fail.
2015-12-16 Nathan Sidwell <nat...@acm.org>
* gcc.dg/sibcall-9.c: Xfail for nvptx.
Index: gcc.dg/sibcall-9.c
===================================================================
--- gcc.dg/sibcall-9.c (revision 231689)
+++ gcc.dg/sibcall-9.c (working copy)
@@ -5,7 +5,7 @@
Copyright (C) 2002 Free Software Foundation Inc.
Contributed by Hans-Peter Nilsson <h...@bitrange.com> */
-/* { dg-do run { xfail { { cris-*-* crisv32-*-* h8300-*-* hppa*64*-*-* m32r-*-* mcore-*-* mn10300-*-* msp430*-*-* nds32*-*-* xstormy16-*-* v850*-*-* vax-*-* xtensa*-*-* } || { arm*-*-* && { ! arm32 } } } } } */
+/* { dg-do run { xfail { { cris-*-* crisv32-*-* h8300-*-* hppa*64*-*-* m32r-*-* mcore-*-* mn10300-*-* msp430*-*-* nds32*-*-* nvptx-*-* xstormy16-*-* v850*-*-* vax-*-* xtensa*-*-* } || { arm*-*-* && { ! arm32 } } } } } */
/* -mlongcall disables sibcall patterns. */
/* { dg-skip-if "" { powerpc*-*-* } { "-mlongcall" } { "" } } */
/* { dg-options "-O2 -foptimize-sibling-calls" } */
