1 ; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck %s -check-prefix=R600 -check-prefix=FUNC 2 ; RUN: opt -S -mtriple=r600-unknown-unknown -mcpu=redwood -amdgpu-promote-alloca < %s | FileCheck -check-prefix=OPT %s 3 4 declare i32 @llvm.r600.read.tidig.x() nounwind readnone 5 6 ; FUNC-LABEL: {{^}}mova_same_clause: 7 8 ; R600: LDS_WRITE 9 ; R600: LDS_WRITE 10 ; R600: LDS_READ 11 ; R600: LDS_READ 12 13 ; OPT: call i32 @llvm.r600.read.local.size.y(), !range !0 14 ; OPT: call i32 @llvm.r600.read.local.size.z(), !range !0 15 ; OPT: call i32 @llvm.r600.read.tidig.x(), !range !0 16 ; OPT: call i32 @llvm.r600.read.tidig.y(), !range !0 17 ; OPT: call i32 @llvm.r600.read.tidig.z(), !range !0 18 19 define void @mova_same_clause(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) #0 { 20 entry: 21 %stack = alloca [5 x i32], align 4 22 %0 = load i32, i32 addrspace(1)* %in, align 4 23 %arrayidx1 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 %0 24 store i32 4, i32* %arrayidx1, align 4 25 %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1 26 %1 = load i32, i32 addrspace(1)* %arrayidx2, align 4 27 %arrayidx3 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 %1 28 store i32 5, i32* %arrayidx3, align 4 29 %arrayidx10 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 0 30 %2 = load i32, i32* %arrayidx10, align 4 31 store i32 %2, i32 addrspace(1)* %out, align 4 32 %arrayidx12 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 1 33 %3 = load i32, i32* %arrayidx12 34 %arrayidx13 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1 35 store i32 %3, i32 addrspace(1)* %arrayidx13 36 ret void 37 } 38 39 ; This test checks that the stack offset is calculated correctly for structs. 40 ; All register loads/stores should be optimized away, so there shouldn't be 41 ; any MOVA instructions. 42 ; 43 ; XXX: This generated code has unnecessary MOVs, we should be able to optimize 44 ; this. 45 46 ; FUNC-LABEL: {{^}}multiple_structs: 47 ; R600-NOT: MOVA_INT 48 %struct.point = type { i32, i32 } 49 50 define void @multiple_structs(i32 addrspace(1)* %out) #0 { 51 entry: 52 %a = alloca %struct.point 53 %b = alloca %struct.point 54 %a.x.ptr = getelementptr inbounds %struct.point, %struct.point* %a, i32 0, i32 0 55 %a.y.ptr = getelementptr inbounds %struct.point, %struct.point* %a, i32 0, i32 1 56 %b.x.ptr = getelementptr inbounds %struct.point, %struct.point* %b, i32 0, i32 0 57 %b.y.ptr = getelementptr inbounds %struct.point, %struct.point* %b, i32 0, i32 1 58 store i32 0, i32* %a.x.ptr 59 store i32 1, i32* %a.y.ptr 60 store i32 2, i32* %b.x.ptr 61 store i32 3, i32* %b.y.ptr 62 %a.indirect.ptr = getelementptr inbounds %struct.point, %struct.point* %a, i32 0, i32 0 63 %b.indirect.ptr = getelementptr inbounds %struct.point, %struct.point* %b, i32 0, i32 0 64 %a.indirect = load i32, i32* %a.indirect.ptr 65 %b.indirect = load i32, i32* %b.indirect.ptr 66 %0 = add i32 %a.indirect, %b.indirect 67 store i32 %0, i32 addrspace(1)* %out 68 ret void 69 } 70 71 ; Test direct access of a private array inside a loop. The private array 72 ; loads and stores should be lowered to copies, so there shouldn't be any 73 ; MOVA instructions. 74 75 ; FUNC-LABEL: {{^}}direct_loop: 76 ; R600-NOT: MOVA_INT 77 78 define void @direct_loop(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 { 79 entry: 80 %prv_array_const = alloca [2 x i32] 81 %prv_array = alloca [2 x i32] 82 %a = load i32, i32 addrspace(1)* %in 83 %b_src_ptr = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1 84 %b = load i32, i32 addrspace(1)* %b_src_ptr 85 %a_dst_ptr = getelementptr inbounds [2 x i32], [2 x i32]* %prv_array_const, i32 0, i32 0 86 store i32 %a, i32* %a_dst_ptr 87 %b_dst_ptr = getelementptr inbounds [2 x i32], [2 x i32]* %prv_array_const, i32 0, i32 1 88 store i32 %b, i32* %b_dst_ptr 89 br label %for.body 90 91 for.body: 92 %inc = phi i32 [0, %entry], [%count, %for.body] 93 %x_ptr = getelementptr inbounds [2 x i32], [2 x i32]* %prv_array_const, i32 0, i32 0 94 %x = load i32, i32* %x_ptr 95 %y_ptr = getelementptr inbounds [2 x i32], [2 x i32]* %prv_array, i32 0, i32 0 96 %y = load i32, i32* %y_ptr 97 %xy = add i32 %x, %y 98 store i32 %xy, i32* %y_ptr 99 %count = add i32 %inc, 1 100 %done = icmp eq i32 %count, 4095 101 br i1 %done, label %for.end, label %for.body 102 103 for.end: 104 %value_ptr = getelementptr inbounds [2 x i32], [2 x i32]* %prv_array, i32 0, i32 0 105 %value = load i32, i32* %value_ptr 106 store i32 %value, i32 addrspace(1)* %out 107 ret void 108 } 109 110 ; FUNC-LABEL: {{^}}short_array: 111 112 ; R600: MOVA_INT 113 define void @short_array(i32 addrspace(1)* %out, i32 %index) #0 { 114 entry: 115 %0 = alloca [2 x i16] 116 %1 = getelementptr inbounds [2 x i16], [2 x i16]* %0, i32 0, i32 0 117 %2 = getelementptr inbounds [2 x i16], [2 x i16]* %0, i32 0, i32 1 118 store i16 0, i16* %1 119 store i16 1, i16* %2 120 %3 = getelementptr inbounds [2 x i16], [2 x i16]* %0, i32 0, i32 %index 121 %4 = load i16, i16* %3 122 %5 = sext i16 %4 to i32 123 store i32 %5, i32 addrspace(1)* %out 124 ret void 125 } 126 127 ; FUNC-LABEL: {{^}}char_array: 128 129 ; R600: MOVA_INT 130 define void @char_array(i32 addrspace(1)* %out, i32 %index) #0 { 131 entry: 132 %0 = alloca [2 x i8] 133 %1 = getelementptr inbounds [2 x i8], [2 x i8]* %0, i32 0, i32 0 134 %2 = getelementptr inbounds [2 x i8], [2 x i8]* %0, i32 0, i32 1 135 store i8 0, i8* %1 136 store i8 1, i8* %2 137 %3 = getelementptr inbounds [2 x i8], [2 x i8]* %0, i32 0, i32 %index 138 %4 = load i8, i8* %3 139 %5 = sext i8 %4 to i32 140 store i32 %5, i32 addrspace(1)* %out 141 ret void 142 143 } 144 145 ; Make sure we don't overwrite workitem information with private memory 146 147 ; FUNC-LABEL: {{^}}work_item_info: 148 ; R600-NOT: MOV T0.X 149 ; Additional check in case the move ends up in the last slot 150 ; R600-NOT: MOV * TO.X 151 define void @work_item_info(i32 addrspace(1)* %out, i32 %in) #0 { 152 entry: 153 %0 = alloca [2 x i32] 154 %1 = getelementptr inbounds [2 x i32], [2 x i32]* %0, i32 0, i32 0 155 %2 = getelementptr inbounds [2 x i32], [2 x i32]* %0, i32 0, i32 1 156 store i32 0, i32* %1 157 store i32 1, i32* %2 158 %3 = getelementptr inbounds [2 x i32], [2 x i32]* %0, i32 0, i32 %in 159 %4 = load i32, i32* %3 160 %5 = call i32 @llvm.r600.read.tidig.x() 161 %6 = add i32 %4, %5 162 store i32 %6, i32 addrspace(1)* %out 163 ret void 164 } 165 166 ; Test that two stack objects are not stored in the same register 167 ; The second stack object should be in T3.X 168 ; FUNC-LABEL: {{^}}no_overlap: 169 ; R600_CHECK: MOV 170 ; R600_CHECK: [[CHAN:[XYZW]]]+ 171 ; R600-NOT: [[CHAN]]+ 172 define void @no_overlap(i32 addrspace(1)* %out, i32 %in) #0 { 173 entry: 174 %0 = alloca [3 x i8], align 1 175 %1 = alloca [2 x i8], align 1 176 %2 = getelementptr inbounds [3 x i8], [3 x i8]* %0, i32 0, i32 0 177 %3 = getelementptr inbounds [3 x i8], [3 x i8]* %0, i32 0, i32 1 178 %4 = getelementptr inbounds [3 x i8], [3 x i8]* %0, i32 0, i32 2 179 %5 = getelementptr inbounds [2 x i8], [2 x i8]* %1, i32 0, i32 0 180 %6 = getelementptr inbounds [2 x i8], [2 x i8]* %1, i32 0, i32 1 181 store i8 0, i8* %2 182 store i8 1, i8* %3 183 store i8 2, i8* %4 184 store i8 1, i8* %5 185 store i8 0, i8* %6 186 %7 = getelementptr inbounds [3 x i8], [3 x i8]* %0, i32 0, i32 %in 187 %8 = getelementptr inbounds [2 x i8], [2 x i8]* %1, i32 0, i32 %in 188 %9 = load i8, i8* %7 189 %10 = load i8, i8* %8 190 %11 = add i8 %9, %10 191 %12 = sext i8 %11 to i32 192 store i32 %12, i32 addrspace(1)* %out 193 ret void 194 } 195 196 define void @char_array_array(i32 addrspace(1)* %out, i32 %index) #0 { 197 entry: 198 %alloca = alloca [2 x [2 x i8]] 199 %gep0 = getelementptr inbounds [2 x [2 x i8]], [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 0 200 %gep1 = getelementptr inbounds [2 x [2 x i8]], [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 1 201 store i8 0, i8* %gep0 202 store i8 1, i8* %gep1 203 %gep2 = getelementptr inbounds [2 x [2 x i8]], [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 %index 204 %load = load i8, i8* %gep2 205 %sext = sext i8 %load to i32 206 store i32 %sext, i32 addrspace(1)* %out 207 ret void 208 } 209 210 define void @i32_array_array(i32 addrspace(1)* %out, i32 %index) #0 { 211 entry: 212 %alloca = alloca [2 x [2 x i32]] 213 %gep0 = getelementptr inbounds [2 x [2 x i32]], [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 0 214 %gep1 = getelementptr inbounds [2 x [2 x i32]], [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 1 215 store i32 0, i32* %gep0 216 store i32 1, i32* %gep1 217 %gep2 = getelementptr inbounds [2 x [2 x i32]], [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 %index 218 %load = load i32, i32* %gep2 219 store i32 %load, i32 addrspace(1)* %out 220 ret void 221 } 222 223 define void @i64_array_array(i64 addrspace(1)* %out, i32 %index) #0 { 224 entry: 225 %alloca = alloca [2 x [2 x i64]] 226 %gep0 = getelementptr inbounds [2 x [2 x i64]], [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 0 227 %gep1 = getelementptr inbounds [2 x [2 x i64]], [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 1 228 store i64 0, i64* %gep0 229 store i64 1, i64* %gep1 230 %gep2 = getelementptr inbounds [2 x [2 x i64]], [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 %index 231 %load = load i64, i64* %gep2 232 store i64 %load, i64 addrspace(1)* %out 233 ret void 234 } 235 236 %struct.pair32 = type { i32, i32 } 237 238 define void @struct_array_array(i32 addrspace(1)* %out, i32 %index) #0 { 239 entry: 240 %alloca = alloca [2 x [2 x %struct.pair32]] 241 %gep0 = getelementptr inbounds [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 0, i32 1 242 %gep1 = getelementptr inbounds [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 1, i32 1 243 store i32 0, i32* %gep0 244 store i32 1, i32* %gep1 245 %gep2 = getelementptr inbounds [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 %index, i32 0 246 %load = load i32, i32* %gep2 247 store i32 %load, i32 addrspace(1)* %out 248 ret void 249 } 250 251 define void @struct_pair32_array(i32 addrspace(1)* %out, i32 %index) #0 { 252 entry: 253 %alloca = alloca [2 x %struct.pair32] 254 %gep0 = getelementptr inbounds [2 x %struct.pair32], [2 x %struct.pair32]* %alloca, i32 0, i32 0, i32 1 255 %gep1 = getelementptr inbounds [2 x %struct.pair32], [2 x %struct.pair32]* %alloca, i32 0, i32 1, i32 0 256 store i32 0, i32* %gep0 257 store i32 1, i32* %gep1 258 %gep2 = getelementptr inbounds [2 x %struct.pair32], [2 x %struct.pair32]* %alloca, i32 0, i32 %index, i32 0 259 %load = load i32, i32* %gep2 260 store i32 %load, i32 addrspace(1)* %out 261 ret void 262 } 263 264 define void @select_private(i32 addrspace(1)* %out, i32 %in) nounwind { 265 entry: 266 %tmp = alloca [2 x i32] 267 %tmp1 = getelementptr inbounds [2 x i32], [2 x i32]* %tmp, i32 0, i32 0 268 %tmp2 = getelementptr inbounds [2 x i32], [2 x i32]* %tmp, i32 0, i32 1 269 store i32 0, i32* %tmp1 270 store i32 1, i32* %tmp2 271 %cmp = icmp eq i32 %in, 0 272 %sel = select i1 %cmp, i32* %tmp1, i32* %tmp2 273 %load = load i32, i32* %sel 274 store i32 %load, i32 addrspace(1)* %out 275 ret void 276 } 277 278 ; AMDGPUPromoteAlloca does not know how to handle ptrtoint. When it 279 ; finds one, it should stop trying to promote. 280 281 ; FUNC-LABEL: ptrtoint: 282 ; SI-NOT: ds_write 283 ; SI: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen 284 ; SI: buffer_load_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ; 285 define void @ptrtoint(i32 addrspace(1)* %out, i32 %a, i32 %b) #0 { 286 %alloca = alloca [16 x i32] 287 %tmp0 = getelementptr inbounds [16 x i32], [16 x i32]* %alloca, i32 0, i32 %a 288 store i32 5, i32* %tmp0 289 %tmp1 = ptrtoint [16 x i32]* %alloca to i32 290 %tmp2 = add i32 %tmp1, 5 291 %tmp3 = inttoptr i32 %tmp2 to i32* 292 %tmp4 = getelementptr inbounds i32, i32* %tmp3, i32 %b 293 %tmp5 = load i32, i32* %tmp4 294 store i32 %tmp5, i32 addrspace(1)* %out 295 ret void 296 } 297 298 ; OPT: !0 = !{i32 0, i32 2048} 299 300 attributes #0 = { nounwind "amdgpu-max-waves-per-eu"="2" } 301
