Fix amdgcn inline immediate range

2020-01-06  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/gcn/gcn.c (gcn_inline_constant_p): Allow 64 as an inline
	immediate.

From-SVN: r279898

gcc/ChangeLog

+2020-01-06  Andrew Stubbs  <ams@codesourcery.com>
+
+	* config/gcn/gcn.c (gcn_inline_constant_p): Allow 64 as an inline
+	immediate.
+
 2020-01-06  Martin Liska  <mliska@suse.cz>
 
     PR tree-optimization/92860

gcc/config/gcn/gcn.c

@@ -842,7 +842,7 @@ bool
 gcn_inline_constant_p (rtx x)
 {
   if (GET_CODE (x) == CONST_INT)
-    return INTVAL (x) >= -16 && INTVAL (x) < 64;
+    return INTVAL (x) >= -16 && INTVAL (x) <= 64;
   if (GET_CODE (x) == CONST_DOUBLE)
     return gcn_inline_fp_constant_p (x, false);
   if (GET_CODE (x) == CONST_VECTOR)