tree: Fix up TREE_SIDE_EFFECTS on internal calls [PR94809]

On the following testcase, match.pd during GENERIC folding
changes the -1U / x < y into __imag__ .MUL_OVERFLOW (x, y),
but unfortunately unlike for normal calls nothing sets TREE_SIDE_EFFECTS on
the call.  There is the process_call_operands function that non-internal
call creation calls and it is usable for internal calls too,
e.g. TREE_SIDE_EFFECTS is derived from checking whether the
call has side-effects (non-ECF_{CONST,PURE}; we have those for internal
calls) and from whether any of the arguments has TREE_SIDE_EFFECTS.

2020-04-28  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/94809
	* tree.c (build_call_expr_internal_loc_array): Call
	process_call_operands.

	* gcc.c-torture/execute/pr94809.c: New test.

gcc/ChangeLog

-2020-04-27 Anton Youdkevitch <anton.youdkevitch@bell-sw.com>
+2020-04-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/94809
+	* tree.c (build_call_expr_internal_loc_array): Call
+	process_call_operands.
+
+2020-04-27  Anton Youdkevitch  <anton.youdkevitch@bell-sw.com>
 
 	* config/aarch64/aarch64-cores.def (thunderx3t110): Add the chip name.
 	* config/aarch64/aarch64-tune.md: Regenerate.
@@ -7,7 +13,7 @@
 	(thunderx3t110_vector_cost): Likewise.
 	(thunderx3t110_prefetch_tune): Likewise.
 	(thunderx3t110_tunings): Likewise.
-	* gcc/config/aarch64/aarch64-cost-tables.h (thunderx3t110_extra_costs):
+	* config/aarch64/aarch64-cost-tables.h (thunderx3t110_extra_costs):
 	Define.
 	* config/aarch64/thunderx3t110.md: New file.
 	* config/aarch64/aarch64.md: Include thunderx3t110.md.

gcc/testsuite/ChangeLog

+2020-04-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/94809
+	* gcc.c-torture/execute/pr94809.c: New test.
+
 2020-04-28  Iain Sandoe  <iain@sandoe.co.uk>
 
 	PR c++/94760

gcc/testsuite/gcc.c-torture/execute/pr94809.c

+/* PR tree-optimization/94809 */
+
+int
+main ()
+{
+  int a = 0;
+  unsigned long long one = 1;
+  ((-1ULL / one) < a++, one);
+  if (a != 1)
+    __builtin_abort ();
+  return 0;
+}

gcc/tree.c

@@ -11523,6 +11523,7 @@ build_call_expr_internal_loc_array (location_t loc, internal_fn ifn,
     CALL_EXPR_ARG (t, i) = args[i];
   SET_EXPR_LOCATION (t, loc);
   CALL_EXPR_IFN (t) = ifn;
+  process_call_operands (t);
   return t;
 }