Add support for non-zero __builtin_return_address values on X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62338 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/ret-addr.ll b/test/CodeGen/X86/ret-addr.ll
new file mode 100644
index 0000000..06a10c6
--- /dev/null
+++ b/test/CodeGen/X86/ret-addr.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-as < %s | llc -disable-fp-elim -march=x86 | not grep xor
+; RUN: llvm-as < %s | llc -disable-fp-elim -march=x86-64 | not grep xor
+
+define i8* @h() nounwind readnone optsize {
+entry:
+ %0 = tail call i8* @llvm.returnaddress(i32 2) ; <i8*> [#uses=1]
+ ret i8* %0
+}
+
+declare i8* @llvm.returnaddress(i32) nounwind readnone
+
+define i8* @g() nounwind readnone optsize {
+entry:
+ %0 = tail call i8* @llvm.returnaddress(i32 1) ; <i8*> [#uses=1]
+ ret i8* %0
+}
+
+define i8* @f() nounwind readnone optsize {
+entry:
+ %0 = tail call i8* @llvm.returnaddress(i32 0) ; <i8*> [#uses=1]
+ ret i8* %0
+}