1; RUN: llc < %s -mtriple=amdgcn--amdpal -mcpu=gfx1010 -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK
2
3; This used to cause a circular chain dependency during
4; SelectionDAG instruction scheduling.
5
6; CHECK-LABEL: {{^}}_amdgpu_gs_main:
7; CHECK: ds_read_b32
8; CHECK: ds_read_b32
9; CHECK: ds_read_b32
10; CHECK: ds_read_b32
11define amdgpu_gs float @_amdgpu_gs_main(i8 addrspace(3)* %arg0, i8 addrspace(3)* %arg1, i8 addrspace(3)* %arg2) #0 {
12  %tmp0 = bitcast i8 addrspace(3)* %arg0 to i32 addrspace(3)* addrspace(3)*
13  %tmp = load volatile i32 addrspace(3)*, i32 addrspace(3)* addrspace(3)* %tmp0, align 4
14
15  %tmp3 = load volatile i32, i32 addrspace(3)* %tmp, align 4
16
17  %tmp4a = bitcast i8 addrspace(3)* %arg1 to i32 addrspace(3)*
18  %tmp4 = load volatile i32, i32 addrspace(3)* %tmp4a, align 4
19
20  %tmp7a = getelementptr i32, i32 addrspace(3)* %tmp, i32 8
21  %tmp8 = load volatile i32, i32 addrspace(3)* %tmp7a, align 4
22
23  %tmp9 = add i32 %tmp3, %tmp8
24  %tmp10 = add i32 %tmp9, %tmp4
25  %tmp14 = bitcast i32 %tmp10 to float
26  ret float %tmp14
27}
28