1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/s390/pr36822.c b/gcc/testsuite/gcc.target/s390/pr36822.c
new file mode 100644
index 000000000..fb021f214
--- /dev/null
+++ b/gcc/testsuite/gcc.target/s390/pr36822.c
@@ -0,0 +1,16 @@
+/* This used to ICE on s390 due to bug in the definition of the 'R'
+   constraint which replaced the 'm' constraint (together with 'T')
+   while adding z10 support.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O" } */
+
+int boo()
+{
+  struct {
+    unsigned char pad[4096];
+    unsigned long bar;
+  } *foo;
+  asm volatile( "" : "=m" (*(unsigned long long*)(foo->bar))
+		: "a" (&foo->bar));
+}