1 ; RUN: llc -amdgpu-scalarize-global-loads=false -verify-machineinstrs -march=amdgcn < %s | FileCheck -enable-var-scope -check-prefix=GCN %s
2 ; RUN: llc -amdgpu-scalarize-global-loads=false -verify-machineinstrs -march=amdgcn -mcpu=tonga < %s | FileCheck -enable-var-scope -check-prefix=GCN %s
4 ; When a frame index offset is more than 12-bits, make sure we don't store
5 ; it in mubuf's offset field.
7 ; Also, make sure we use the same register for storing the scratch buffer addresss
8 ; for both stores. This register is allocated by the register scavenger, so we
9 ; should be able to reuse the same regiser for each scratch buffer access.
11 ; GCN-LABEL: {{^}}legal_offset_fi:
12 ; GCN: buffer_store_dword v{{[0-9]+}}, off, s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offset:4{{$}}
13 ; GCN: v_mov_b32_e32 [[OFFSET:v[0-9]+]], 0x8004
14 ; GCN: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen{{$}}
16 define amdgpu_kernel void @legal_offset_fi(i32 addrspace(1)* %out, i32 %cond, i32 %if_offset, i32 %else_offset) {
18 %scratch0 = alloca [8192 x i32], addrspace(5)
19 %scratch1 = alloca [8192 x i32], addrspace(5)
21 %scratchptr0 = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch0, i32 0, i32 0
22 store i32 1, i32 addrspace(5)* %scratchptr0
24 %scratchptr1 = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch1, i32 0, i32 0
25 store i32 2, i32 addrspace(5)* %scratchptr1
27 %cmp = icmp eq i32 %cond, 0
28 br i1 %cmp, label %if, label %else
31 %if_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch0, i32 0, i32 %if_offset
32 %if_value = load i32, i32 addrspace(5)* %if_ptr
36 %else_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch1, i32 0, i32 %else_offset
37 %else_value = load i32, i32 addrspace(5)* %else_ptr
41 %value = phi i32 [%if_value, %if], [%else_value, %else]
42 store i32 %value, i32 addrspace(1)* %out
49 ; GCN-LABEL: {{^}}legal_offset_fi_offset:
50 ; GCN-DAG: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen{{$}}
51 ; This constant isn't folded, because it has multiple uses.
52 ; GCN-DAG: v_mov_b32_e32 [[K8000:v[0-9]+]], 0x8004
53 ; GCN-DAG: v_add_{{[iu]}}32_e32 [[OFFSET:v[0-9]+]], vcc, [[K8000]]
54 ; GCN: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen{{$}}
56 define amdgpu_kernel void @legal_offset_fi_offset(i32 addrspace(1)* %out, i32 %cond, i32 addrspace(1)* %offsets, i32 %if_offset, i32 %else_offset) {
58 %scratch0 = alloca [8192 x i32], addrspace(5)
59 %scratch1 = alloca [8192 x i32], addrspace(5)
61 %offset0 = load i32, i32 addrspace(1)* %offsets
62 %scratchptr0 = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch0, i32 0, i32 %offset0
63 store i32 %offset0, i32 addrspace(5)* %scratchptr0
65 %offsetptr1 = getelementptr i32, i32 addrspace(1)* %offsets, i32 1
66 %offset1 = load i32, i32 addrspace(1)* %offsetptr1
67 %scratchptr1 = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch1, i32 0, i32 %offset1
68 store i32 %offset1, i32 addrspace(5)* %scratchptr1
70 %cmp = icmp eq i32 %cond, 0
71 br i1 %cmp, label %if, label %else
74 %if_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch0, i32 0, i32 %if_offset
75 %if_value = load i32, i32 addrspace(5)* %if_ptr
79 %else_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch1, i32 0, i32 %else_offset
80 %else_value = load i32, i32 addrspace(5)* %else_ptr
84 %value = phi i32 [%if_value, %if], [%else_value, %else]
85 store i32 %value, i32 addrspace(1)* %out
89 ; GCN-LABEL: {{^}}neg_vaddr_offset_inbounds:
90 ; GCN: v_add_{{[iu]}}32_e32 [[ADD:v[0-9]+]], vcc, 16, v{{[0-9]+}}
91 ; GCN: buffer_store_dword v{{[0-9]+}}, [[ADD]], s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen{{$}}
92 define amdgpu_kernel void @neg_vaddr_offset_inbounds(i32 %offset) {
94 %array = alloca [8192 x i32], addrspace(5)
95 %ptr_offset = add i32 %offset, 4
96 %ptr = getelementptr inbounds [8192 x i32], [8192 x i32] addrspace(5)* %array, i32 0, i32 %ptr_offset
97 store i32 0, i32 addrspace(5)* %ptr
101 ; GCN-LABEL: {{^}}neg_vaddr_offset:
102 ; GCN: v_add_{{[iu]}}32_e32 [[ADD:v[0-9]+]], vcc, 16, v{{[0-9]+}}
103 ; GCN: buffer_store_dword v{{[0-9]+}}, [[ADD]], s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen{{$}}
104 define amdgpu_kernel void @neg_vaddr_offset(i32 %offset) {
106 %array = alloca [8192 x i32], addrspace(5)
107 %ptr_offset = add i32 %offset, 4
108 %ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %array, i32 0, i32 %ptr_offset
109 store i32 0, i32 addrspace(5)* %ptr
113 ; GCN-LABEL: {{^}}pos_vaddr_offset:
114 ; GCN: buffer_store_dword v{{[0-9]+}}, off, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offset:20
115 define amdgpu_kernel void @pos_vaddr_offset(i32 addrspace(1)* %out, i32 %offset) {
117 %array = alloca [8192 x i32], addrspace(5)
118 %ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %array, i32 0, i32 4
119 store i32 0, i32 addrspace(5)* %ptr
120 %load_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %array, i32 0, i32 %offset
121 %val = load i32, i32 addrspace(5)* %load_ptr
122 store i32 %val, i32 addrspace(1)* %out