diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f6994c4..d641173 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,15 @@
 2019-02-14  Martin Liska  <mliska@suse.cz>
 
 	Backport from mainline
+	2019-02-14  Martin Liska  <mliska@suse.cz>
+
+	PR rtl-optimization/89242
+	* dce.c (delete_unmarked_insns): Call free_dominance_info we
+	process a transformation.
+
+2019-02-14  Martin Liska  <mliska@suse.cz>
+
+	Backport from mainline
 	2019-02-13  Martin Liska  <mliska@suse.cz>
 
 	PR lto/88858
diff --git a/gcc/dce.c b/gcc/dce.c
index 2ef4dd7..ce2edc4 100644
--- a/gcc/dce.c
+++ b/gcc/dce.c
@@ -642,7 +642,10 @@
 
   /* Deleted a pure or const call.  */
   if (must_clean)
-    delete_unreachable_blocks ();
+    {
+      delete_unreachable_blocks ();
+      free_dominance_info (CDI_DOMINATORS);
+    }
 }
 
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 33d9d92..09311c2 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,14 @@
 2019-02-14  Martin Liska  <mliska@suse.cz>
 
 	Backport from mainline
+	2019-02-14  Martin Liska  <mliska@suse.cz>
+
+	PR rtl-optimization/89242
+	* g++.dg/pr89242.C: New test.
+
+2019-02-14  Martin Liska  <mliska@suse.cz>
+
+	Backport from mainline
 	2019-02-11  Martin Liska  <mliska@suse.cz>
 
 	PR ipa/89009