1 files changed, 50 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/args-10.ll b/test/CodeGen/SystemZ/args-10.ll
new file mode 100644
index 000000000000..6083c4415b33
--- /dev/null
+++ b/test/CodeGen/SystemZ/args-10.ll
@@ -0,0 +1,50 @@
+; Test incoming i128 arguments.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Do some arithmetic so that we can see the register being used.
+define void @f1(i128 *%r2, i16 %r3, i32 %r4, i64 %r5, i128 %r6) {
+; CHECK-LABEL: f1:
+; CHECK-DAG:  lg [[REGL:%r[0-5]+]], 8(%r6)
+; CHECK-DAG:  lg [[REGH:%r[0-5]+]], 0(%r6)
+; CHECK:      algr [[REGL]], [[REGL]]
+; CHECK-NEXT: alcgr [[REGH]], [[REGH]]
+; CHECK-DAG:  stg [[REGL]], 8(%r2)
+; CHECK-DAG:  stg [[REGH]], 0(%r2)
+; CHECK:      br %r14
+  %y = add i128 %r6, %r6
+  store i128 %y, i128 *%r2
+  ret void
+}
+
+; Test a case where the i128 address is passed on the stack.
+define void @f2(i128 *%r2, i16 %r3, i32 %r4, i64 %r5,
+                i128 %r6, i64 %s1, i64 %s2, i128 %s4) {
+; CHECK-LABEL: f2:
+; CHECK:      lg [[ADDR:%r[1-5]+]], 176(%r15)
+; CHECK-DAG:  lg [[REGL:%r[0-5]+]], 8([[ADDR]])
+; CHECK-DAG:  lg [[REGH:%r[0-5]+]], 0([[ADDR]])
+; CHECK:      algr [[REGL]], [[REGL]]
+; CHECK-NEXT: alcgr [[REGH]], [[REGH]]
+; CHECK-DAG:  stg [[REGL]], 8(%r2)
+; CHECK-DAG:  stg [[REGH]], 0(%r2)
+; CHECK:      br %r14
+  %y = add i128 %s4, %s4
+  store i128 %y, i128 *%r2
+  ret void
+}
+
+; Explicit i128 return values are likewise passed indirectly.
+define i128 @f14(i128 %r3) {
+; CHECK-LABEL: f14:
+; CHECK-DAG:  lg [[REGL:%r[0-5]+]], 8(%r3)
+; CHECK-DAG:  lg [[REGH:%r[0-5]+]], 0(%r3)
+; CHECK:      algr [[REGL]], [[REGL]]
+; CHECK-NEXT: alcgr [[REGH]], [[REGH]]
+; CHECK-DAG:  stg [[REGL]], 8(%r2)
+; CHECK-DAG:  stg [[REGH]], 0(%r2)
+; CHECK:      br %r14
+  %y = add i128 %r3, %r3
+  ret i128 %y
+}
+