re PR target/79633 (ICE in gimple_call_arg, at gimple.h:3163)

	PR target/79633
	* tree-chkp-opt.c (chkp_optimize_string_function_calls): Use
	is_gimple_call instead of comparing gimple_code with GIMPLE_CALL.
	Use gimple_call_builtin_p.

	* gcc.target/i386/mpx/pr79633.c: New test.

From-SVN: r245634

gcc/ChangeLog

 2017-02-21  Jakub Jelinek  <jakub@redhat.com>
 
+	PR target/79633
+	* tree-chkp-opt.c (chkp_optimize_string_function_calls): Use
+	is_gimple_call instead of comparing gimple_code with GIMPLE_CALL.
+	Use gimple_call_builtin_p.
+
 	PR target/79570
 	* sel-sched.c (moveup_expr_cached): Don't call sel_bb_head
 	on temporarily removed DEBUG_INSNs.

gcc/testsuite/ChangeLog

 2017-02-21  Jakub Jelinek  <jakub@redhat.com>
 
+	PR target/79633
+	* gcc.target/i386/mpx/pr79633.c: New test.
+
 	PR target/79570
 	* gcc.dg/pr79570.c: New test.
 

gcc/testsuite/gcc.target/i386/mpx/pr79633.c

+/* PR target/79633 */
+/* { dg-do compile } */
+/* { dg-options "-fcheck-pointer-bounds -mmpx -w -O2" } */
+
+extern void *memcpy ();
+
+void
+foo ()
+{
+  memcpy ();
+}

gcc/tree-chkp-opt.c

@@ -964,15 +964,12 @@ chkp_optimize_string_function_calls (void)
 	  gimple *stmt = gsi_stmt (i);
 	  tree fndecl;
 
-	  if (gimple_code (stmt) != GIMPLE_CALL
-	      || !gimple_call_with_bounds_p (stmt))
+	  if (!is_gimple_call (stmt)
+	      || !gimple_call_with_bounds_p (stmt)
+	      || !gimple_call_builtin_p (stmt, BUILT_IN_NORMAL))
 	    continue;
 
 	  fndecl = gimple_call_fndecl (stmt);
-
-	  if (!fndecl || DECL_BUILT_IN_CLASS (fndecl) != BUILT_IN_NORMAL)
-	    continue;
-
 	  if (DECL_FUNCTION_CODE (fndecl) == BUILT_IN_MEMCPY_CHKP
 	      || DECL_FUNCTION_CODE (fndecl) == BUILT_IN_MEMPCPY_CHKP
 	      || DECL_FUNCTION_CODE (fndecl) == BUILT_IN_MEMMOVE_CHKP