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]+}}], 0 offset:4{{$}}
13 ; GCN: v_mov_b32_e32 [[OFFSET:v[0-9]+]], 0x8004
14 ; GCN: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], 0 offen{{$}}
16 define amdgpu_kernel void @legal_offset_fi(ptr 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 store i32 1, ptr addrspace(5) %scratch0
23 store i32 2, ptr addrspace(5) %scratch1
25 %cmp = icmp eq i32 %cond, 0
26 br i1 %cmp, label %if, label %else
29 %if_ptr = getelementptr [8192 x i32], ptr addrspace(5) %scratch0, i32 0, i32 %if_offset
30 %if_value = load i32, ptr addrspace(5) %if_ptr
34 %else_ptr = getelementptr [8192 x i32], ptr addrspace(5) %scratch1, i32 0, i32 %else_offset
35 %else_value = load i32, ptr addrspace(5) %else_ptr
39 %value = phi i32 [%if_value, %if], [%else_value, %else]
40 store i32 %value, ptr addrspace(1) %out
47 ; GCN-LABEL: {{^}}legal_offset_fi_offset:
48 ; GCN-DAG: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+}}:{{[0-9]+}}], 0 offen{{$}}
49 ; GCN-DAG: v_mov_b32_e32 [[K8000:v[0-9]+]], 0x8004
50 ; GCN-DAG: v_add_{{[iu]}}32_e32 [[OFFSET:v[0-9]+]], vcc, 0x8004
51 ; GCN: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], 0 offen{{$}}
53 define amdgpu_kernel void @legal_offset_fi_offset(ptr addrspace(1) %out, i32 %cond, ptr addrspace(1) %offsets, i32 %if_offset, i32 %else_offset) {
55 %scratch0 = alloca [8192 x i32], addrspace(5)
56 %scratch1 = alloca [8192 x i32], addrspace(5)
58 %offset0 = load i32, ptr addrspace(1) %offsets
59 %scratchptr0 = getelementptr [8192 x i32], ptr addrspace(5) %scratch0, i32 0, i32 %offset0
60 store i32 %offset0, ptr addrspace(5) %scratchptr0
62 %offsetptr1 = getelementptr i32, ptr addrspace(1) %offsets, i32 1
63 %offset1 = load i32, ptr addrspace(1) %offsetptr1
64 %scratchptr1 = getelementptr [8192 x i32], ptr addrspace(5) %scratch1, i32 0, i32 %offset1
65 store i32 %offset1, ptr addrspace(5) %scratchptr1
67 %cmp = icmp eq i32 %cond, 0
68 br i1 %cmp, label %if, label %else
71 %if_ptr = getelementptr [8192 x i32], ptr addrspace(5) %scratch0, i32 0, i32 %if_offset
72 %if_value = load i32, ptr addrspace(5) %if_ptr
76 %else_ptr = getelementptr [8192 x i32], ptr addrspace(5) %scratch1, i32 0, i32 %else_offset
77 %else_value = load i32, ptr addrspace(5) %else_ptr
81 %value = phi i32 [%if_value, %if], [%else_value, %else]
82 store i32 %value, ptr addrspace(1) %out
86 ; GCN-LABEL: {{^}}neg_vaddr_offset_inbounds:
87 ; GCN: v_add_{{[iu]}}32_e32 [[ADD:v[0-9]+]], vcc, 16, v{{[0-9]+}}
88 ; GCN: buffer_store_dword v{{[0-9]+}}, [[ADD]], s[{{[0-9]+:[0-9]+}}], 0 offen{{$}}
89 define amdgpu_kernel void @neg_vaddr_offset_inbounds(i32 %offset) {
91 %array = alloca [8192 x i32], addrspace(5)
92 %ptr_offset = add i32 %offset, 4
93 %ptr = getelementptr inbounds [8192 x i32], ptr addrspace(5) %array, i32 0, i32 %ptr_offset
94 store i32 0, ptr addrspace(5) %ptr
98 ; GCN-LABEL: {{^}}neg_vaddr_offset:
99 ; GCN: v_add_{{[iu]}}32_e32 [[ADD:v[0-9]+]], vcc, 16, v{{[0-9]+}}
100 ; GCN: buffer_store_dword v{{[0-9]+}}, [[ADD]], s[{{[0-9]+:[0-9]+}}], 0 offen{{$}}
101 define amdgpu_kernel void @neg_vaddr_offset(i32 %offset) {
103 %array = alloca [8192 x i32], addrspace(5)
104 %ptr_offset = add i32 %offset, 4
105 %ptr = getelementptr [8192 x i32], ptr addrspace(5) %array, i32 0, i32 %ptr_offset
106 store i32 0, ptr addrspace(5) %ptr
110 ; GCN-LABEL: {{^}}pos_vaddr_offset:
111 ; GCN: buffer_store_dword v{{[0-9]+}}, off, s[{{[0-9]+:[0-9]+}}], 0 offset:20
112 define amdgpu_kernel void @pos_vaddr_offset(ptr addrspace(1) %out, i32 %offset) {
114 %array = alloca [8192 x i32], addrspace(5)
115 %ptr = getelementptr [8192 x i32], ptr addrspace(5) %array, i32 0, i32 4
116 store i32 0, ptr addrspace(5) %ptr
117 %load_ptr = getelementptr [8192 x i32], ptr addrspace(5) %array, i32 0, i32 %offset
118 %val = load i32, ptr addrspace(5) %load_ptr
119 store i32 %val, ptr addrspace(1) %out