1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
4 @lds = internal addrspace(3) global [576 x double] undef, align 16
6 ; Stores to the same address appear multiple places in the same
7 ; block. When sorted by offset, the merges would fail. We should form
8 ; two groupings of ds_write2_b64 on either side of the fence.
9 define amdgpu_kernel void @same_address_fence_merge_write2() #0 {
10 ; GCN-LABEL: same_address_fence_merge_write2:
12 ; GCN-NEXT: s_mov_b32 s0, 0
13 ; GCN-NEXT: v_lshlrev_b32_e32 v2, 3, v0
14 ; GCN-NEXT: s_mov_b32 s1, 0x40100000
15 ; GCN-NEXT: v_mov_b32_e32 v0, s0
16 ; GCN-NEXT: v_mov_b32_e32 v1, s1
17 ; GCN-NEXT: v_add_u32_e32 v3, 0x800, v2
18 ; GCN-NEXT: ds_write2_b64 v2, v[0:1], v[0:1] offset1:66
19 ; GCN-NEXT: ds_write2_b64 v2, v[0:1], v[0:1] offset0:132 offset1:198
20 ; GCN-NEXT: ds_write2_b64 v3, v[0:1], v[0:1] offset0:8 offset1:74
21 ; GCN-NEXT: ds_write2_b64 v3, v[0:1], v[0:1] offset0:140 offset1:206
22 ; GCN-NEXT: s_mov_b32 s1, 0x3ff00000
23 ; GCN-NEXT: v_mov_b32_e32 v0, s0
24 ; GCN-NEXT: v_mov_b32_e32 v1, s1
25 ; GCN-NEXT: s_waitcnt lgkmcnt(0)
27 ; GCN-NEXT: s_waitcnt lgkmcnt(0)
28 ; GCN-NEXT: ds_write2_b64 v2, v[0:1], v[0:1] offset1:66
29 ; GCN-NEXT: ds_write2_b64 v2, v[0:1], v[0:1] offset0:132 offset1:198
30 ; GCN-NEXT: ds_write2_b64 v3, v[0:1], v[0:1] offset0:8 offset1:74
31 ; GCN-NEXT: ds_write2_b64 v3, v[0:1], v[0:1] offset0:140 offset1:206
34 %tmp = tail call i32 @llvm.amdgcn.workitem.id.x(), !range !0
35 %tmp1 = getelementptr inbounds [576 x double], [576 x double] addrspace(3)* @lds, i32 0, i32 %tmp
36 store double 4.000000e+00, double addrspace(3)* %tmp1, align 8
37 %tmp2 = getelementptr inbounds double, double addrspace(3)* %tmp1, i32 66
38 store double 4.000000e+00, double addrspace(3)* %tmp2, align 8
39 %tmp3 = getelementptr inbounds double, double addrspace(3)* %tmp1, i32 132
40 store double 4.000000e+00, double addrspace(3)* %tmp3, align 8
41 %tmp4 = getelementptr inbounds double, double addrspace(3)* %tmp1, i32 198
42 store double 4.000000e+00, double addrspace(3)* %tmp4, align 8
43 %tmp5 = getelementptr inbounds double, double addrspace(3)* %tmp1, i32 264
44 store double 4.000000e+00, double addrspace(3)* %tmp5, align 8
45 %tmp6 = getelementptr inbounds double, double addrspace(3)* %tmp1, i32 330
46 store double 4.000000e+00, double addrspace(3)* %tmp6, align 8
47 %tmp7 = getelementptr inbounds double, double addrspace(3)* %tmp1, i32 396
48 store double 4.000000e+00, double addrspace(3)* %tmp7, align 8
49 %tmp8 = getelementptr inbounds double, double addrspace(3)* %tmp1, i32 462
50 store double 4.000000e+00, double addrspace(3)* %tmp8, align 8
51 fence syncscope("workgroup") release
52 tail call void @llvm.amdgcn.s.barrier()
53 fence syncscope("workgroup") acquire
54 store double 1.000000e+00, double addrspace(3)* %tmp1, align 8
55 store double 1.000000e+00, double addrspace(3)* %tmp2, align 8
56 store double 1.000000e+00, double addrspace(3)* %tmp3, align 8
57 store double 1.000000e+00, double addrspace(3)* %tmp4, align 8
58 store double 1.000000e+00, double addrspace(3)* %tmp5, align 8
59 store double 1.000000e+00, double addrspace(3)* %tmp6, align 8
60 store double 1.000000e+00, double addrspace(3)* %tmp7, align 8
61 store double 1.000000e+00, double addrspace(3)* %tmp8, align 8
65 declare i32 @llvm.amdgcn.workitem.id.x() #0
66 declare void @llvm.amdgcn.s.barrier() #1
68 attributes #0 = { nounwind readnone speculatable }
69 attributes #1 = { convergent nounwind }
71 !0 = !{i32 0, i32 1024}