1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/frameaddr-01.ll b/test/CodeGen/SystemZ/frameaddr-01.ll
new file mode 100644
index 000000000000..4dfdf308e8a6
--- /dev/null
+++ b/test/CodeGen/SystemZ/frameaddr-01.ll
@@ -0,0 +1,28 @@
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; The current function's frame address is the address of
+; the optional back chain slot.
+define i8* @fp0() nounwind {
+entry:
+; CHECK-LABEL: fp0:
+; CHECK: la   %r2, 0(%r15)
+; CHECK: br   %r14
+  %0 = tail call i8* @llvm.frameaddress(i32 0)
+  ret i8* %0
+}
+
+; Check that the frame address is correct in a presence
+; of a stack frame.
+define i8* @fp0f() nounwind {
+entry:
+; CHECK-LABEL: fp0f:
+; CHECK: aghi %r15, -168
+; CHECK: la   %r2, 168(%r15)
+; CHECK: aghi %r15, 168
+; CHECK: br   %r14
+  %0 = alloca i64, align 8
+  %1 = tail call i8* @llvm.frameaddress(i32 0)
+  ret i8* %1
+}
+
+declare i8* @llvm.frameaddress(i32) nounwind readnone