[AMDGPU] Packed thread ids in function call ABI

Differential Revision: https://reviews.llvm.org/D63851

llvm-svn: 364619
diff --git a/llvm/test/CodeGen/AMDGPU/call-constexpr.ll b/llvm/test/CodeGen/AMDGPU/call-constexpr.ll
index 0ebf11d..3044ff8 100644
--- a/llvm/test/CodeGen/AMDGPU/call-constexpr.ll
+++ b/llvm/test/CodeGen/AMDGPU/call-constexpr.ll
@@ -65,6 +65,7 @@
 
 ; GCN-LABEL: {{^}}use_workitem_id_x:
 ; GCN: s_waitcnt
+; GCN-NEXT: v_and_b32_e32 v1, 0x3ff, v1
 ; GCN-NEXT: v_add_i32_e32 v0, vcc, v1, v0
 ; GCN-NEXT: s_setpc_b64
 define hidden i32 @use_workitem_id_x(i32 %arg0) #0 {