--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/AMDGPU/insert_subreg.ll	Tue Oct 13 17:48:58 2015 +0900
@@ -0,0 +1,16 @@
+; RUN: llc -march=amdgcn -mcpu=SI -mattr=-promote-alloca -verify-machineinstrs < %s
+; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-promote-alloca -verify-machineinstrs < %s
+
+; Test that INSERT_SUBREG instructions don't have non-register operands after
+; instruction selection.
+
+; Make sure this doesn't crash
+; CHECK-LABEL: test:
+define void @test(i64 addrspace(1)* %out) {
+entry:
+  %tmp0 = alloca [16 x i32]
+  %tmp1 = ptrtoint [16 x i32]* %tmp0 to i32
+  %tmp2 = sext i32 %tmp1 to i64
+  store i64 %tmp2, i64 addrspace(1)* %out
+  ret void
+}