[ptx] Fix sso tests

[Nathan Sidwell <nathan@acm.org>]

[-- Attachment #1: Type: text/plain, Size: 337 bytes --]

The gcc.dg/sso tests gratuitously fail on PTX because they use IO facilities 
that don't exist there.  This  patch changes the dumping to use the putchar 
function call (and not a macro), and not use fputs.

With this they all pass.

I'm not quite sure where the maintainer  boundaries lie for this kind of fix. 
Any objections?

nathan

[-- Attachment #2: trunk-sso.patch --]
[-- Type: text/x-patch, Size: 796 bytes --]

2015-11-23  Nathan Sidwell  <nathan@acm.org>

	* gcc.dg/sso/dump.h: Force IO to be putchar function call on nvptx.

Index: gcc/testsuite/gcc.dg/sso/dump.h
===================================================================
--- gcc/testsuite/gcc.dg/sso/dump.h	(revision 230718)
+++ gcc/testsuite/gcc.dg/sso/dump.h	(working copy)
@@ -1,3 +1,9 @@
+#ifdef __nvptx__
+/* Force function call.  NVPTX's IO is extremely limited.  */
+#undef putchar
+#define putchar (putchar)
+#endif
+
 void dump (void *p, unsigned int len)
 {
   const char digits[17] = "0123456789abcdef";
@@ -14,7 +20,13 @@ void dump (void *p, unsigned int len)
 
 void put (const char s[])
 {
+#ifdef  __nvptx__
+  int i;
+  for (i = 0; s[i]; i++)
+    putchar (s[i]);
+#else
   fputs (s, stdout);
+#endif
 }
 
 void new_line (void)