1 files changed, 91 insertions, 0 deletions
diff --git a/test/CodeGen/ARM64/call-tailcalls.ll b/test/CodeGen/ARM64/call-tailcalls.ll
new file mode 100644
index 0000000000..487c1d9bec
--- /dev/null
+++ b/test/CodeGen/ARM64/call-tailcalls.ll
@@ -0,0 +1,91 @@
+; RUN: llc < %s -mtriple=arm64-apple-ios7.0 | FileCheck %s
+
+@t = weak global i32 ()* null
+@x = external global i32, align 4
+
+define void @t2() {
+; CHECK-LABEL: t2:
+; CHECK: adrp	x[[GOTADDR:[0-9]+]], _t@GOTPAGE
+; CHECK: ldr	x[[ADDR:[0-9]+]], [x[[GOTADDR]], _t@GOTPAGEOFF]
+; CHECK: ldr	x[[DEST:[0-9]+]], [x[[ADDR]]]
+; CHECK: br	x[[DEST]]
+  %tmp = load i32 ()** @t
+  %tmp.upgrd.2 = tail call i32 %tmp()
+  ret void
+}
+
+define void @t3() {
+; CHECK-LABEL: t3:
+; CHECK: b	_t2
+  tail call void @t2()
+  ret void
+}
+
+define double @t4(double %a) nounwind readonly ssp {
+; CHECK-LABEL: t4:
+; CHECK: b	_sin
+  %tmp = tail call double @sin(double %a) nounwind readonly
+  ret double %tmp
+}
+
+define float @t5(float %a) nounwind readonly ssp {
+; CHECK-LABEL: t5:
+; CHECK: b	_sinf
+  %tmp = tail call float @sinf(float %a) nounwind readonly
+  ret float %tmp
+}
+
+define void @t7() nounwind {
+; CHECK-LABEL: t7:
+; CHECK: b	_foo
+; CHECK: b	_bar
+
+  br i1 undef, label %bb, label %bb1.lr.ph
+
+bb1.lr.ph:                                        ; preds = %entry
+  tail call void @bar() nounwind
+  ret void
+
+bb:                                               ; preds = %entry
+  tail call void @foo() nounwind
+  ret void
+}
+
+define i32 @t8(i32 %x) nounwind ssp {
+; CHECK-LABEL: t8:
+; CHECK: b	_a
+; CHECK: b	_b
+; CHECK: b	_c
+  %and = and i32 %x, 1
+  %tobool = icmp eq i32 %and, 0
+  br i1 %tobool, label %if.end, label %if.then
+
+if.then:                                          ; preds = %entry
+  %call = tail call i32 @a(i32 %x) nounwind
+  br label %return
+
+if.end:                                           ; preds = %entry
+  %and1 = and i32 %x, 2
+  %tobool2 = icmp eq i32 %and1, 0
+  br i1 %tobool2, label %if.end5, label %if.then3
+
+if.then3:                                         ; preds = %if.end
+  %call4 = tail call i32 @b(i32 %x) nounwind
+  br label %return
+
+if.end5:                                          ; preds = %if.end
+  %call6 = tail call i32 @c(i32 %x) nounwind
+  br label %return
+
+return:                                           ; preds = %if.end5, %if.then3, %if.then
+  %retval.0 = phi i32 [ %call, %if.then ], [ %call4, %if.then3 ], [ %call6, %if.end5 ]
+  ret i32 %retval.0
+}
+
+declare float @sinf(float) nounwind readonly
+declare double @sin(double) nounwind readonly
+declare void @bar() nounwind
+declare void @foo() nounwind
+declare i32 @a(i32)
+declare i32 @b(i32)
+declare i32 @c(i32)