[gomp4] Remove PTX link option

[James Norris]

Hi,

This patch removes the constraint whereby the PTX
emitted was only for sm_30 GPU's. With this removal,
the PTX emitted will be targeted for the current
context (attached GPU).

This patch has been applied to gomp-4_0-branch.

Thanks,
Jim

Index: libgomp/ChangeLog.gomp
===================================================================
--- libgomp/ChangeLog.gomp	(revision 232139)
+++ libgomp/ChangeLog.gomp	(revision 232142)
@@ -1,5 +1,10 @@
 2016-01-07  James Norris  <jnor...@codesourcery.com>
+	    Alexander Monakov <amona...@ispras.ru>
 
+	* plugin/plugin-nvptx.c (link_ptx): Remove link option.
+
+2016-01-07  James Norris  <jnor...@codesourcery.com>
+
 	* testsuite/libgomp.oacc-c-c++-common/declare-4.c: Fix test.
 
 2016-01-06  Cesar Philippidis  <ce...@codesourcery.com>
Index: libgomp/plugin/plugin-nvptx.c
===================================================================
--- libgomp/plugin/plugin-nvptx.c	(revision 232139)
+++ libgomp/plugin/plugin-nvptx.c	(revision 232142)
@@ -693,8 +693,8 @@
 link_ptx (CUmodule *module, const struct targ_ptx_obj *ptx_objs,
 	  unsigned num_objs)
 {
-  CUjit_option opts[7];
-  void *optvals[7];
+  CUjit_option opts[6];
+  void *optvals[6];
   float elapsed = 0.0;
 #define LOGSIZE 8192
   char elog[LOGSIZE];
@@ -723,10 +723,7 @@
   opts[5] = CU_JIT_LOG_VERBOSE;
   optvals[5] = (void *) 1;
 
-  opts[6] = CU_JIT_TARGET;
-  optvals[6] = (void *) CU_TARGET_COMPUTE_30;
-
-  r = cuLinkCreate (7, opts, optvals, &linkstate);
+  r = cuLinkCreate (6, opts, optvals, &linkstate);
   if (r != CUDA_SUCCESS)
     GOMP_PLUGIN_fatal ("cuLinkCreate error: %s", cuda_error (r));