1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/asm-03.ll b/test/CodeGen/SystemZ/asm-03.ll
new file mode 100644
index 0000000000000..a6f3f2a5cb605
--- /dev/null
+++ b/test/CodeGen/SystemZ/asm-03.ll
@@ -0,0 +1,16 @@
+; Test the "S" asm constraint, which accepts addresses that have a base
+; and a 20-bit displacement.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+define void @f1(i64 %base) {
+; CHECK: f1:
+; CHECK: blah 0(%r2)
+; CHECK: br %r14
+  %addr = inttoptr i64 %base to i64 *
+  call void asm "blah $0", "=*S" (i64 *%addr)
+  ret void
+}
+
+; FIXME: at the moment the precise constraint is not passed down to
+; target code, so we must conservatively treat "S" as "Q".