vendor/llvm/llvm-release_350-r216957

1 files changed, 24 insertions, 0 deletions

diff --git a/test/CodeGen/AArch64/arm64-fastcc-tailcall.ll b/test/CodeGen/AArch64/arm64-fastcc-tailcall.ll
new file mode 100644
index 000000000000..8a744c513d7a
--- /dev/null
+++ b/test/CodeGen/AArch64/arm64-fastcc-tailcall.ll
@@ -0,0 +1,24 @@
+; RUN: llc < %s -march=arm64 | FileCheck %s
+
+define void @caller(i32* nocapture %p, i32 %a, i32 %b) nounwind optsize ssp {
+; CHECK-NOT: stp
+; CHECK: b       {{_callee|callee}}
+; CHECK-NOT: ldp
+; CHECK: ret
+  %1 = icmp eq i32 %b, 0
+  br i1 %1, label %3, label %2
+
+  tail call fastcc void @callee(i32* %p, i32 %a) optsize
+  br label %3
+
+  ret void
+}
+
+define internal fastcc void @callee(i32* nocapture %p, i32 %a) nounwind optsize noinline ssp {
+  store volatile i32 %a, i32* %p, align 4, !tbaa !0
+  ret void
+}
+
+!0 = metadata !{metadata !"int", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA"}