add test cases for frameaddr and returnaddr for aarch64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193626 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/AArch64/frameaddr.ll b/test/CodeGen/AArch64/frameaddr.ll
new file mode 100644 (file)
index 0000000..182704b
--- /dev/null
+++ b/test/CodeGen/AArch64/frameaddr.ll
@@ -0,0 +1,20 @@
+; RUN: llc < %s -mtriple=aarch64-none-linux-gnu  | FileCheck %s
+
+define i8* @t() nounwind {
+entry:
+; CHECK-LABEL: t:
+; CHECK: mov x0, x29
+       %0 = call i8* @llvm.frameaddress(i32 0)
+        ret i8* %0
+}
+
+define i8* @t2() nounwind {
+entry:
+; CHECK-LABEL: t2:
+; CHECK: ldr x[[reg:[0-9]+]], [x29]
+; CHECK: ldr x[[reg]], [x[[reg]]]
+       %0 = call i8* @llvm.frameaddress(i32 2)
+        ret i8* %0
+}
+
+declare i8* @llvm.frameaddress(i32) nounwind readnone

diff --git a/test/CodeGen/AArch64/returnaddr.ll b/test/CodeGen/AArch64/returnaddr.ll
new file mode 100644 (file)
index 0000000..c85f9ec
--- /dev/null
+++ b/test/CodeGen/AArch64/returnaddr.ll
@@ -0,0 +1,21 @@
+; RUN: llc < %s -mtriple=aarch64-none-linux-gnu  | FileCheck %s
+
+define i8* @rt0(i32 %x) nounwind readnone {
+entry:
+; CHECK-LABEL: rt0:
+; CHECK: mov x0, x30
+  %0 = tail call i8* @llvm.returnaddress(i32 0)
+  ret i8* %0
+}
+
+define i8* @rt2() nounwind readnone {
+entry:
+; CHECK-LABEL: rt2:
+; CHECK: ldr x[[reg:[0-9]+]], [x29]
+; CHECK: ldr x[[reg]], [x[[reg]]]
+; CHECK: ldr x0, [x[[reg]], #8]
+  %0 = tail call i8* @llvm.returnaddress(i32 2)
+  ret i8* %0
+}
+
+declare i8* @llvm.returnaddress(i32) nounwind readnone