[nvptx] Address genrecog warnings

    build/genrecog [...]/source-gcc/gcc/common.md [...]/source-gcc/gcc/config/nvptx/nvptx.md \
              insn-conditions.md > tmp-recog.c
    [...]/source-gcc/gcc/config/nvptx/nvptx.md:1206: warning: operand 0 missing mode?
    [...]/source-gcc/gcc/config/nvptx/nvptx.md:1206: warning: operand 1 missing mode?

	gcc/
	* config/nvptx/nvptx.md (allocate_stack): Rename to...
	(allocate_stack_<mode>): ... this, and add :P on both
	match_operand and unspec.
	(allocate_stack): New expander.

From-SVN: r224641

gcc/ChangeLog

+2015-06-19  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/nvptx/nvptx.md (allocate_stack): Rename to...
+	(allocate_stack_<mode>): ... this, and add :P on both
+	match_operand and unspec.
+	(allocate_stack): New expander.
+
 2015-06-19  Christian Bruel  <christian.bruel@st.com>
 
 	PR target/66541

gcc/config/nvptx/nvptx.md

@@ -1203,10 +1203,22 @@
   sorry ("target cannot support nonlocal goto.");
 })
 
-(define_insn "allocate_stack"
-  [(set (match_operand 0 "nvptx_register_operand" "=R")
-	(unspec [(match_operand 1 "nvptx_register_operand" "R")]
-		  UNSPEC_ALLOCA))]
+(define_expand "allocate_stack"
+  [(match_operand 0 "nvptx_register_operand")
+   (match_operand 1 "nvptx_register_operand")]
+  ""
+{
+  if (TARGET_ABI64)
+    emit_insn (gen_allocate_stack_di (operands[0], operands[1]));
+  else
+    emit_insn (gen_allocate_stack_si (operands[0], operands[1]));
+  DONE;
+})
+
+(define_insn "allocate_stack_<mode>"
+  [(set (match_operand:P 0 "nvptx_register_operand" "=R")
+        (unspec:P [(match_operand:P 1 "nvptx_register_operand" "R")]
+                   UNSPEC_ALLOCA))]
   ""
   "%.\\tcall (%0), %%alloca, (%1);")