Fix fast-isel to avoid selecting the return instruction if a
tail call has been encountered.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89444 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/tailcall-fastisel.ll b/test/CodeGen/X86/tailcall-fastisel.ll
new file mode 100644
index 0000000..d54fb41
--- /dev/null
+++ b/test/CodeGen/X86/tailcall-fastisel.ll
@@ -0,0 +1,13 @@
+; RUN: llc < %s -march=x86-64 -tailcallopt -fast-isel | grep TAILCALL
+
+; Fast-isel shouldn't attempt to handle this tail call, and it should
+; cleanly terminate instruction selection in the block after it's
+; done to avoid emitting invalid MachineInstrs.
+
+%0 = type { i64, i32, i8* }
+
+define fastcc i8* @"visit_array_aux<`Reference>"(%0 %arg, i32 %arg1) nounwind {
+fail: ; preds = %entry
+ %tmp20 = tail call fastcc i8* @"visit_array_aux<`Reference>"(%0 %arg, i32 undef) ; <i8*> [#uses=1]
+ ret i8* %tmp20
+}