diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3e4bf2b56ee..1dec62f5d97 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2019-05-06  Richard Biener  <rguenther@suse.de>
+
+	PR testsuite/90331
+	* gcc.dg/pr87314-1.c: Align the substring to open up
+	string merging for targets aligning strings to 8 bytes.
+
 2019-05-06  Martin Liska  <mliska@suse.cz>
 
 	PR sanitizer/90312
diff --git a/gcc/testsuite/gcc.dg/pr87314-1.c b/gcc/testsuite/gcc.dg/pr87314-1.c
index 4dc85c8eee6..9bc905612b5 100644
--- a/gcc/testsuite/gcc.dg/pr87314-1.c
+++ b/gcc/testsuite/gcc.dg/pr87314-1.c
@@ -3,9 +3,9 @@
 
 int f(){ int a; return &a==(void *)"hello"; }
 int g(){ return "bye"=="hello"; }
-int h() { return "bye"=="hellobye"+5; }
+int h() { return "bye"=="helloooobye"+8; }
 
 /* { dg-final { scan-tree-dump-times "hello" 1 "original" } } */
 /* The test in h() should be retained because the result depends on
    string merging.  */
-/* { dg-final { scan-assembler "hello" } } */
+/* { dg-final { scan-assembler "hellooo" } } */