diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4196998ff69b..bbb7e06c7fb3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2020-01-16  Andrew Pinski  <apinski@marvell.com>
+
+	* sched-int.h (_dep): Add unused bit-field field for the padding.
+	* sched-deps.c (init_dep_1): Init unused field.
+
 2020-01-16  Andrew Pinski  <apinski@marvell.com>
 
 	* optabs.h (create_expand_operand): Initialize target field also.
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c
index 9182aba5588c..331af5ffdb3b 100644
--- a/gcc/sched-deps.c
+++ b/gcc/sched-deps.c
@@ -101,6 +101,7 @@ init_dep_1 (dep_t dep, rtx_insn *pro, rtx_insn *con, enum reg_note type, ds_t ds
   DEP_NONREG (dep) = 0;
   DEP_MULTIPLE (dep) = 0;
   DEP_REPLACE (dep) = NULL;
+  dep->unused = 0;
 }
 
 /* Init DEP with the arguments.
diff --git a/gcc/sched-int.h b/gcc/sched-int.h
index 833b552a340a..a847f876e659 100644
--- a/gcc/sched-int.h
+++ b/gcc/sched-int.h
@@ -238,6 +238,8 @@ struct _dep
   /* Cached cost of the dependency.  Make sure to update UNKNOWN_DEP_COST
      when changing the size of this field.  */
   int cost:20;
+
+  unsigned unused:4;
 };
 
 #define UNKNOWN_DEP_COST ((int) ((unsigned int) -1 << 19))