1; RUN: opt -S %loadPolly -basic-aa -polly-dependences -analyze -polly-dependences-analysis-type=value-based < %s | FileCheck %s -check-prefix=VALUE 2; RUN: opt -S %loadPolly -basic-aa -polly-dependences -analyze -polly-dependences-analysis-type=memory-based < %s | FileCheck %s -check-prefix=MEMORY 3; RUN: opt -S %loadPolly -basic-aa -polly-dependences -analyze -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=access-wise < %s | FileCheck %s -check-prefix=VALUE_ACCESS 4 5; VALUE-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'sequential_writes': 6; VALUE-NEXT: RAW dependences: 7; VALUE-NEXT: { } 8; VALUE-NEXT: WAR dependences: 9; VALUE-NEXT: { } 10; VALUE-NEXT: WAW dependences: 11; VALUE-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 } 12; 13;VALUE_ACCESS-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'sequential_writes': 14;VALUE_ACCESS-NEXT: RAW dependences: 15;VALUE_ACCESS-NEXT: { } 16;VALUE_ACCESS-NEXT: WAR dependences: 17;VALUE_ACCESS-NEXT: { } 18;VALUE_ACCESS-NEXT: WAW dependences: 19;VALUE_ACCESS-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S2[i0] -> Stmt_S2_Write0[]] : 0 <= i0 <= 9; Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; [Stmt_S2[i0] -> Stmt_S2_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Write0[]] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Write0[]] : 10 <= i0 <= 99; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 } 20 21; 22; VALUE-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'read_after_writes': 23; VALUE-NEXT: RAW dependences: 24; VALUE-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 } 25; VALUE-NEXT: WAR dependences: 26; VALUE-NEXT: { } 27; VALUE-NEXT: WAW dependences: 28; VALUE-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9 } 29; 30;VALUE_ACCESS-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'read_after_writes': 31;VALUE_ACCESS-NEXT: RAW dependences: 32;VALUE_ACCESS-NEXT: { [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Read0[]] : 10 <= i0 <= 99; [Stmt_S2[i0] -> Stmt_S2_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Read0[]] : 0 <= i0 <= 9; Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 } 33 34;VALUE_ACCESS-NEXT: WAR dependences: 35;VALUE_ACCESS-NEXT: { } 36;VALUE_ACCESS-NEXT: WAW dependences: 37;VALUE_ACCESS-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S2[i0] -> Stmt_S2_Write0[]] : 0 <= i0 <= 9 } 38; 39; VALUE-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'write_after_read': 40; VALUE-NEXT: RAW dependences: 41; VALUE-NEXT: { } 42; VALUE-NEXT: WAR dependences: 43; VALUE-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 } 44; VALUE-NEXT: WAW dependences: 45; VALUE-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9 } 46; 47;VALUE_ACCESS-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'write_after_read': 48;VALUE_ACCESS-NEXT: RAW dependences: 49;VALUE_ACCESS-NEXT: { } 50;VALUE_ACCESS-NEXT: WAR dependences: 51;VALUE_ACCESS-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Read0[]] -> [Stmt_S2[i0] -> Stmt_S2_Write0[]] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Read0[]] -> [Stmt_S3[i0] -> Stmt_S3_Write0[]] : 10 <= i0 <= 99; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 } 52;VALUE_ACCESS-NEXT: WAW dependences: 53;VALUE_ACCESS-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; [Stmt_S2[i0] -> Stmt_S2_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Write0[]] : 0 <= i0 <= 9 } 54; 55; VALUE-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.2' in function 'parametric_offset': 56; VALUE-NEXT: RAW dependences: 57; VALUE-NEXT: [p] -> { Stmt_S1[i0] -> Stmt_S2[-p + i0] : i0 >= p and 0 <= i0 <= 99 and i0 <= 9 + p } 58; VALUE-NEXT: WAR dependences: 59; VALUE-NEXT: [p] -> { } 60; VALUE-NEXT: WAW dependences: 61; VALUE-NEXT: [p] -> { } 62; 63;VALUE_ACCESS-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.2' in function 'parametric_offset': 64;VALUE_ACCESS-NEXT: RAW dependences: 65;VALUE_ACCESS-NEXT: [p] -> { [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S2[-p + i0] -> Stmt_S2_Read0[]] : i0 >= p and 0 <= i0 <= 99 and i0 <= 9 + p; Stmt_S1[i0] -> Stmt_S2[-p + i0] : i0 >= p and 0 <= i0 <= 99 and i0 <= 9 + p } 66;VALUE_ACCESS-NEXT: WAR dependences: 67;VALUE_ACCESS-NEXT: [p] -> { } 68;VALUE_ACCESS-NEXT: WAW dependences: 69;VALUE_ACCESS-NEXT: [p] -> { } 70 71; MEMORY-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'sequential_writes': 72; MEMORY-NEXT: RAW dependences: 73; MEMORY-NEXT: { } 74; MEMORY-NEXT: WAR dependences: 75; MEMORY-NEXT: { } 76; MEMORY-NEXT: WAW dependences: 77; MEMORY-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 0 <= i0 <= 99 } 78; 79; MEMORY-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'read_after_writes': 80; MEMORY-NEXT: RAW dependences: 81; MEMORY-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 0 <= i0 <= 99 } 82; MEMORY-NEXT: WAR dependences: 83; MEMORY-NEXT: { } 84; MEMORY-NEXT: WAW dependences: 85; MEMORY-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9 } 86; 87; MEMORY-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'write_after_read': 88; MEMORY-NEXT: RAW dependences: 89; MEMORY-NEXT: { } 90; MEMORY-NEXT: WAR dependences: 91; MEMORY-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 0 <= i0 <= 99 } 92; MEMORY-NEXT: WAW dependences: 93; MEMORY-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9 } 94; 95; MEMORY-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.2' in function 'parametric_offset': 96; MEMORY-NEXT: RAW dependences: 97; MEMORY-NEXT: [p] -> { Stmt_S1[i0] -> Stmt_S2[-p + i0] : i0 >= p and 0 <= i0 <= 99 and i0 <= 9 + p } 98; MEMORY-NEXT: WAR dependences: 99; MEMORY-NEXT: [p] -> { } 100; MEMORY-NEXT: WAW dependences: 101; MEMORY-NEXT: [p] -> { } 102 103target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 104 105; for(i = 0; i < 100; i++ ) 106; S1: A[i] = 2; 107; 108; for (i = 0; i < 10; i++ ) 109; S2: A[i] = 5; 110; 111; for (i = 0; i < 200; i++ ) 112; S3: A[i] = 5; 113 114define void @sequential_writes() { 115entry: 116 %A = alloca [200 x i32] 117 br label %S1 118 119S1: 120 %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %S1 ] 121 %arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1 122 store i32 2, i32* %arrayidx.1 123 %indvar.next.1 = add i64 %indvar.1, 1 124 %exitcond.1 = icmp ne i64 %indvar.next.1, 100 125 br i1 %exitcond.1, label %S1, label %exit.1 126 127exit.1: 128 br label %S2 129 130S2: 131 %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %S2 ] 132 %arrayidx.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2 133 store i32 5, i32* %arrayidx.2 134 %indvar.next.2 = add i64 %indvar.2, 1 135 %exitcond.2 = icmp ne i64 %indvar.next.2, 10 136 br i1 %exitcond.2, label %S2, label %exit.2 137 138exit.2: 139 br label %S3 140 141S3: 142 %indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %S3 ] 143 %arrayidx.3 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.3 144 store i32 7, i32* %arrayidx.3 145 %indvar.next.3 = add i64 %indvar.3, 1 146 %exitcond.3 = icmp ne i64 %indvar.next.3, 200 147 br i1 %exitcond.3, label %S3 , label %exit.3 148 149exit.3: 150 ret void 151} 152 153 154; for(i = 0; i < 100; i++ ) 155; S1: A[i] = 2; 156; 157; for (i = 0; i < 10; i++ ) 158; S2: A[i] = 5; 159; 160; for (i = 0; i < 200; i++ ) 161; S3: B[i] = A[i]; 162 163define void @read_after_writes() { 164entry: 165 %A = alloca [200 x i32] 166 %B = alloca [200 x i32] 167 br label %S1 168 169S1: 170 %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %S1 ] 171 %arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1 172 store i32 2, i32* %arrayidx.1 173 %indvar.next.1 = add i64 %indvar.1, 1 174 %exitcond.1 = icmp ne i64 %indvar.next.1, 100 175 br i1 %exitcond.1, label %S1, label %exit.1 176 177exit.1: 178 br label %S2 179 180S2: 181 %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %S2 ] 182 %arrayidx.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2 183 store i32 5, i32* %arrayidx.2 184 %indvar.next.2 = add i64 %indvar.2, 1 185 %exitcond.2 = icmp ne i64 %indvar.next.2, 10 186 br i1 %exitcond.2, label %S2, label %exit.2 187 188exit.2: 189 br label %S3 190 191S3: 192 %indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %S3 ] 193 %arrayidx.3.a = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.3 194 %arrayidx.3.b = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.3 195 %val = load i32, i32* %arrayidx.3.a 196 store i32 %val, i32* %arrayidx.3.b 197 %indvar.next.3 = add i64 %indvar.3, 1 198 %exitcond.3 = icmp ne i64 %indvar.next.3, 200 199 br i1 %exitcond.3, label %S3 , label %exit.3 200 201exit.3: 202 ret void 203} 204 205 206; for(i = 0; i < 100; i++ ) 207; S1: B[i] = A[i]; 208; 209; for (i = 0; i < 10; i++ ) 210; S2: A[i] = 5; 211; 212; for (i = 0; i < 200; i++ ) 213; S3: A[i] = 10; 214 215define void @write_after_read() { 216entry: 217 %A = alloca [200 x i32] 218 %B = alloca [200 x i32] 219 br label %S1 220 221S1: 222 %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %S1 ] 223 %arrayidx.1.a = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1 224 %arrayidx.1.b = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.1 225 %val = load i32, i32* %arrayidx.1.a 226 store i32 %val, i32* %arrayidx.1.b 227 %indvar.next.1 = add i64 %indvar.1, 1 228 %exitcond.1 = icmp ne i64 %indvar.next.1, 100 229 br i1 %exitcond.1, label %S1, label %exit.1 230 231exit.1: 232 br label %S2 233 234S2: 235 %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %S2 ] 236 %arrayidx.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2 237 store i32 5, i32* %arrayidx.2 238 %indvar.next.2 = add i64 %indvar.2, 1 239 %exitcond.2 = icmp ne i64 %indvar.next.2, 10 240 br i1 %exitcond.2, label %S2, label %exit.2 241 242exit.2: 243 br label %S3 244 245S3: 246 %indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %S3 ] 247 %arrayidx.3 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.3 248 store i32 10, i32* %arrayidx.3 249 %indvar.next.3 = add i64 %indvar.3, 1 250 %exitcond.3 = icmp ne i64 %indvar.next.3, 200 251 br i1 %exitcond.3, label %S3 , label %exit.3 252 253exit.3: 254 ret void 255} 256 257 258; for(i = 0; i < 100; i++ ) 259; S1: A[i] = 10 260; 261; for(i = 0; i < 100; i++ ) 262; S2: B[i] = A[i + p]; 263 264define void @parametric_offset(i64 %p) { 265entry: 266 %A = alloca [200 x i32] 267 %B = alloca [200 x i32] 268 br label %S1 269 270S1: 271 %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %S1 ] 272 %arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1 273 store i32 10, i32* %arrayidx.1 274 %indvar.next.1 = add i64 %indvar.1, 1 275 %exitcond.1 = icmp ne i64 %indvar.next.1, 100 276 br i1 %exitcond.1, label %S1, label %exit.1 277 278exit.1: 279 br label %S2 280 281S2: 282 %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %S2 ] 283 %sum = add i64 %indvar.2, %p 284 %arrayidx.2.a = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %sum 285 %arrayidx.2.b = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.2 286 %val = load i32, i32* %arrayidx.2.a 287 store i32 %val, i32* %arrayidx.2.b 288 %indvar.next.2 = add i64 %indvar.2, 1 289 %exitcond.2 = icmp ne i64 %indvar.next.2, 10 290 br i1 %exitcond.2, label %S2, label %exit.2 291 292exit.2: 293 ret void 294} 295 296