re PR rtl-optimization/88416 (ICE in in df_uses_record, at df-scan.c:3013)

	PR rtl-optimization/88416
	* valtrack.c (cleanup_auto_inc_dec): Handle pre/post-inc/dec/modify
	even if !AUTO_INC_DEC.

	* gcc.target/i386/pr88416.c: New test.

From-SVN: r267105

gcc/ChangeLog

+2018-12-13  Jakub Jelinek  <jakub@redhat.com>
+
+	PR rtl-optimization/88416
+	* valtrack.c (cleanup_auto_inc_dec): Handle pre/post-inc/dec/modify
+	even if !AUTO_INC_DEC.
+
 2018-12-13  David Edelsohn  <dje.gcc@gmail.com>
 
 	* config/rs6000/rs6000.c (rs6000_function_arg): Ensure type is

gcc/testsuite/ChangeLog

 2018-12-13  Jakub Jelinek  <jakub@redhat.com>
 
+	PR rtl-optimization/88416
+	* gcc.target/i386/pr88416.c: New test.
+
 	PR tree-optimization/88464
 	* gcc.target/i386/avx512f-pr88462-1.c: New test.
 	* gcc.target/i386/avx512f-pr88462-2.c: New test.

gcc/testsuite/gcc.target/i386/pr88416.c

+/* PR rtl-optimization/88416 */
+/* { dg-do compile } */
+/* { dg-options "-O1 -fvar-tracking-assignments -fno-forward-propagate --param max-cse-insns=1" } */
+
+#include "writeeflags-1.c"

gcc/valtrack.c

@@ -56,8 +56,6 @@ static rtx
 cleanup_auto_inc_dec (rtx src, machine_mode mem_mode ATTRIBUTE_UNUSED)
 {
   rtx x = src;
-  if (!AUTO_INC_DEC)
-    return copy_rtx (x);
 
   const RTX_CODE code = GET_CODE (x);
   int i;