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1; RUN: llc -mtriple=amdgcn--amdpal -mcpu=gfx803 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN %s
2; RUN: llc -mtriple=amdgcn--amdpal -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN %s
3
4; The buffer_loads and buffer_stores all access the same location. Check they do
5; not get reordered by the scheduler.
6
7; GCN-LABEL: {{^}}_amdgpu_cs_main:
8; GCN: buffer_load_dword
9; GCN: buffer_store_dword
10; GCN: buffer_load_dword
11; GCN: buffer_store_dword
12; GCN: buffer_load_dword
13; GCN: buffer_store_dword
14; GCN: buffer_load_dword
15; GCN: buffer_store_dword
16
17; Function Attrs: nounwind
18define amdgpu_cs void @_amdgpu_cs_main(<3 x i32> inreg %arg3, <3 x i32> %arg5) {
19.entry:
20  %tmp9 = add <3 x i32> %arg3, %arg5
21  %tmp10 = extractelement <3 x i32> %tmp9, i32 0
22  %tmp11 = shl i32 %tmp10, 2
23  %tmp12 = inttoptr i64 undef to <4 x i32> addrspace(4)*
24  %tmp13 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp12, align 16
25  %tmp14 = call float @llvm.amdgcn.buffer.load.f32(<4 x i32> %tmp13, i32 0, i32 %tmp11, i1 false, i1 false) #0
26  %tmp17 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp12, align 16
27  call void @llvm.amdgcn.buffer.store.f32(float %tmp14, <4 x i32> %tmp17, i32 0, i32 %tmp11, i1 false, i1 false) #0
28  %tmp20 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp12, align 16
29  %tmp21 = call float @llvm.amdgcn.buffer.load.f32(<4 x i32> %tmp20, i32 0, i32 %tmp11, i1 false, i1 false) #0
30  %tmp22 = fadd reassoc nnan arcp contract float %tmp21, 1.000000e+00
31  call void @llvm.amdgcn.buffer.store.f32(float %tmp22, <4 x i32> %tmp20, i32 0, i32 %tmp11, i1 false, i1 false) #0
32  %tmp25 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp12, align 16
33  %tmp26 = call float @llvm.amdgcn.buffer.load.f32(<4 x i32> %tmp25, i32 0, i32 %tmp11, i1 false, i1 false) #0
34  %tmp27 = fadd reassoc nnan arcp contract float %tmp26, 1.000000e+00
35  call void @llvm.amdgcn.buffer.store.f32(float %tmp27, <4 x i32> %tmp25, i32 0, i32 %tmp11, i1 false, i1 false) #0
36  %tmp30 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp12, align 16
37  %tmp31 = call float @llvm.amdgcn.buffer.load.f32(<4 x i32> %tmp30, i32 0, i32 %tmp11, i1 false, i1 false) #0
38  %tmp32 = fadd reassoc nnan arcp contract float %tmp31, 1.000000e+00
39  call void @llvm.amdgcn.buffer.store.f32(float %tmp32, <4 x i32> %tmp30, i32 0, i32 %tmp11, i1 false, i1 false) #0
40  %tmp35 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp12, align 16
41  %tmp36 = call float @llvm.amdgcn.buffer.load.f32(<4 x i32> %tmp35, i32 0, i32 %tmp11, i1 false, i1 false) #0
42  %tmp37 = fadd reassoc nnan arcp contract float %tmp36, 1.000000e+00
43  call void @llvm.amdgcn.buffer.store.f32(float %tmp37, <4 x i32> %tmp35, i32 0, i32 %tmp11, i1 false, i1 false) #0
44  ret void
45}
46
47declare float @llvm.amdgcn.buffer.load.f32(<4 x i32>, i32, i32, i1, i1) #2
48
49declare void @llvm.amdgcn.buffer.store.f32(float, <4 x i32>, i32, i32, i1, i1) #3
50
51attributes #2 = { nounwind readonly }
52attributes #3 = { nounwind writeonly }
53
54