1; RUN: opt < %s -analyze -basicaa -da | FileCheck %s 2 3; ModuleID = 'Preliminary.bc' 4target 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-S128" 5target triple = "x86_64-apple-macosx10.6.0" 6 7 8;;int p0(int n, int *A, int *B) { 9;; A[0] = n; 10;; return B[1]; 11 12define i32 @p0(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp { 13entry: 14 store i32 %n, i32* %A, align 4 15 16; CHECK: da analyze - none! 17; CHECK: da analyze - confused! 18; CHECK: da analyze - none! 19 20 %arrayidx1 = getelementptr inbounds i32, i32* %B, i64 1 21 %0 = load i32, i32* %arrayidx1, align 4 22 ret i32 %0 23} 24 25 26;;int p1(int n, int *restrict A, int *restrict B) { 27;; A[0] = n; 28;; return B[1]; 29 30define i32 @p1(i32 %n, i32* noalias %A, i32* noalias %B) nounwind uwtable ssp { 31entry: 32 store i32 %n, i32* %A, align 4 33 34; CHECK: da analyze - none! 35; CHECK: da analyze - none! 36; CHECK: da analyze - none! 37 38 %arrayidx1 = getelementptr inbounds i32, i32* %B, i64 1 39 %0 = load i32, i32* %arrayidx1, align 4 40 ret i32 %0 41} 42 43 44;; for (long int i = 0; i < n; i++) { 45;; for (long int j = 0; j < n; j++) { 46;; for (long int k = 0; k < n; k++) { 47;; A[i][j][k] = i; 48;; } 49;; for (long int k = 0; k < n; k++) { 50;; *B++ = A[i + 3][j + 2][k + 1]; 51 52define void @p2(i64 %n, [100 x [100 x i64]]* %A, i64* %B) nounwind uwtable ssp { 53entry: 54 %cmp10 = icmp sgt i64 %n, 0 55 br i1 %cmp10, label %for.cond1.preheader.preheader, label %for.end26 56 57; CHECK: da analyze - none! 58; CHECK: da analyze - flow [-3 -2]! 59; CHECK: da analyze - confused! 60; CHECK: da analyze - none! 61; CHECK: da analyze - confused! 62; CHECK: da analyze - output [* * *]! 63 64for.cond1.preheader.preheader: ; preds = %entry 65 br label %for.cond1.preheader 66 67for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc24 68 %B.addr.012 = phi i64* [ %B.addr.1.lcssa, %for.inc24 ], [ %B, %for.cond1.preheader.preheader ] 69 %i.011 = phi i64 [ %inc25, %for.inc24 ], [ 0, %for.cond1.preheader.preheader ] 70 %cmp26 = icmp sgt i64 %n, 0 71 br i1 %cmp26, label %for.cond4.preheader.preheader, label %for.inc24 72 73for.cond4.preheader.preheader: ; preds = %for.cond1.preheader 74 br label %for.cond4.preheader 75 76for.cond4.preheader: ; preds = %for.cond4.preheader.preheader, %for.inc21 77 %B.addr.18 = phi i64* [ %B.addr.2.lcssa, %for.inc21 ], [ %B.addr.012, %for.cond4.preheader.preheader ] 78 %j.07 = phi i64 [ %inc22, %for.inc21 ], [ 0, %for.cond4.preheader.preheader ] 79 %cmp51 = icmp sgt i64 %n, 0 80 br i1 %cmp51, label %for.body6.preheader, label %for.cond10.loopexit 81 82for.body6.preheader: ; preds = %for.cond4.preheader 83 br label %for.body6 84 85for.body6: ; preds = %for.body6.preheader, %for.body6 86 %k.02 = phi i64 [ %inc, %for.body6 ], [ 0, %for.body6.preheader ] 87 %arrayidx8 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* %A, i64 %i.011, i64 %j.07, i64 %k.02 88 store i64 %i.011, i64* %arrayidx8, align 8 89 %inc = add nsw i64 %k.02, 1 90 %exitcond13 = icmp ne i64 %inc, %n 91 br i1 %exitcond13, label %for.body6, label %for.cond10.loopexit.loopexit 92 93for.cond10.loopexit.loopexit: ; preds = %for.body6 94 br label %for.cond10.loopexit 95 96for.cond10.loopexit: ; preds = %for.cond10.loopexit.loopexit, %for.cond4.preheader 97 %cmp113 = icmp sgt i64 %n, 0 98 br i1 %cmp113, label %for.body12.preheader, label %for.inc21 99 100for.body12.preheader: ; preds = %for.cond10.loopexit 101 br label %for.body12 102 103for.body12: ; preds = %for.body12.preheader, %for.body12 104 %k9.05 = phi i64 [ %inc19, %for.body12 ], [ 0, %for.body12.preheader ] 105 %B.addr.24 = phi i64* [ %incdec.ptr, %for.body12 ], [ %B.addr.18, %for.body12.preheader ] 106 %add = add nsw i64 %k9.05, 1 107 %add13 = add nsw i64 %j.07, 2 108 %add14 = add nsw i64 %i.011, 3 109 %arrayidx17 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* %A, i64 %add14, i64 %add13, i64 %add 110 %0 = load i64, i64* %arrayidx17, align 8 111 %incdec.ptr = getelementptr inbounds i64, i64* %B.addr.24, i64 1 112 store i64 %0, i64* %B.addr.24, align 8 113 %inc19 = add nsw i64 %k9.05, 1 114 %exitcond = icmp ne i64 %inc19, %n 115 br i1 %exitcond, label %for.body12, label %for.inc21.loopexit 116 117for.inc21.loopexit: ; preds = %for.body12 118 %scevgep = getelementptr i64, i64* %B.addr.18, i64 %n 119 br label %for.inc21 120 121for.inc21: ; preds = %for.inc21.loopexit, %for.cond10.loopexit 122 %B.addr.2.lcssa = phi i64* [ %B.addr.18, %for.cond10.loopexit ], [ %scevgep, %for.inc21.loopexit ] 123 %inc22 = add nsw i64 %j.07, 1 124 %exitcond14 = icmp ne i64 %inc22, %n 125 br i1 %exitcond14, label %for.cond4.preheader, label %for.inc24.loopexit 126 127for.inc24.loopexit: ; preds = %for.inc21 128 %B.addr.2.lcssa.lcssa = phi i64* [ %B.addr.2.lcssa, %for.inc21 ] 129 br label %for.inc24 130 131for.inc24: ; preds = %for.inc24.loopexit, %for.cond1.preheader 132 %B.addr.1.lcssa = phi i64* [ %B.addr.012, %for.cond1.preheader ], [ %B.addr.2.lcssa.lcssa, %for.inc24.loopexit ] 133 %inc25 = add nsw i64 %i.011, 1 134 %exitcond15 = icmp ne i64 %inc25, %n 135 br i1 %exitcond15, label %for.cond1.preheader, label %for.end26.loopexit 136 137for.end26.loopexit: ; preds = %for.inc24 138 br label %for.end26 139 140for.end26: ; preds = %for.end26.loopexit, %entry 141 ret void 142} 143 144 145;; for (long int i = 0; i < n; i++) 146;; for (long int j = 0; j < n; j++) 147;; for (long int k = 0; k < n; k++) 148;; for (long int l = 0; l < n; l++) 149;; for (long int m = 0; m < n; m++) 150;; for (long int o = 0; o < n; o++) 151;; for (long int p = 0; p < n; p++) 152;; for (long int q = 0; q < n; q++) 153;; for (long int r = 0; r < n; r++) 154;; for (long int s = 0; s < n; s++) 155;; for (long int u = 0; u < n; u++) 156;; for (long int t = 0; t < n; t++) { 157;; A[i - 3] [j] [2] [k-1] [2*l + 1] [m] [p + q] [r + s] = i; 158;; *B++ = A[i + 3] [2] [u] [1-k] [3*l - 1] [o] [1 + n] [t + 2]; 159 160define void @p3(i64 %n, [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64* %B) nounwind uwtable ssp { 161entry: 162 %cmp44 = icmp sgt i64 %n, 0 163 br i1 %cmp44, label %for.cond1.preheader.preheader, label %for.end90 164 165; CHECK: da analyze - output [0 0 0 0 0 S * * * * S S]! 166; CHECK: da analyze - flow [-6 * * => * * * * * * * *] splitable! 167; CHECK: da analyze - split level = 3, iteration = 1! 168; CHECK: da analyze - confused! 169; CHECK: da analyze - consistent input [0 S 0 0 S 0 S S S S 0 0]! 170; CHECK: da analyze - confused! 171; CHECK: da analyze - output [* * * * * * * * * * * *]! 172 173for.cond1.preheader.preheader: ; preds = %entry 174 br label %for.cond1.preheader 175 176for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc88 177 %B.addr.046 = phi i64* [ %B.addr.1.lcssa, %for.inc88 ], [ %B, %for.cond1.preheader.preheader ] 178 %i.045 = phi i64 [ %inc89, %for.inc88 ], [ 0, %for.cond1.preheader.preheader ] 179 %cmp240 = icmp sgt i64 %n, 0 180 br i1 %cmp240, label %for.cond4.preheader.preheader, label %for.inc88 181 182for.cond4.preheader.preheader: ; preds = %for.cond1.preheader 183 br label %for.cond4.preheader 184 185for.cond4.preheader: ; preds = %for.cond4.preheader.preheader, %for.inc85 186 %B.addr.142 = phi i64* [ %B.addr.2.lcssa, %for.inc85 ], [ %B.addr.046, %for.cond4.preheader.preheader ] 187 %j.041 = phi i64 [ %inc86, %for.inc85 ], [ 0, %for.cond4.preheader.preheader ] 188 %cmp536 = icmp sgt i64 %n, 0 189 br i1 %cmp536, label %for.cond7.preheader.preheader, label %for.inc85 190 191for.cond7.preheader.preheader: ; preds = %for.cond4.preheader 192 br label %for.cond7.preheader 193 194for.cond7.preheader: ; preds = %for.cond7.preheader.preheader, %for.inc82 195 %B.addr.238 = phi i64* [ %B.addr.3.lcssa, %for.inc82 ], [ %B.addr.142, %for.cond7.preheader.preheader ] 196 %k.037 = phi i64 [ %inc83, %for.inc82 ], [ 0, %for.cond7.preheader.preheader ] 197 %cmp832 = icmp sgt i64 %n, 0 198 br i1 %cmp832, label %for.cond10.preheader.preheader, label %for.inc82 199 200for.cond10.preheader.preheader: ; preds = %for.cond7.preheader 201 br label %for.cond10.preheader 202 203for.cond10.preheader: ; preds = %for.cond10.preheader.preheader, %for.inc79 204 %B.addr.334 = phi i64* [ %B.addr.4.lcssa, %for.inc79 ], [ %B.addr.238, %for.cond10.preheader.preheader ] 205 %l.033 = phi i64 [ %inc80, %for.inc79 ], [ 0, %for.cond10.preheader.preheader ] 206 %cmp1128 = icmp sgt i64 %n, 0 207 br i1 %cmp1128, label %for.cond13.preheader.preheader, label %for.inc79 208 209for.cond13.preheader.preheader: ; preds = %for.cond10.preheader 210 br label %for.cond13.preheader 211 212for.cond13.preheader: ; preds = %for.cond13.preheader.preheader, %for.inc76 213 %B.addr.430 = phi i64* [ %B.addr.5.lcssa, %for.inc76 ], [ %B.addr.334, %for.cond13.preheader.preheader ] 214 %m.029 = phi i64 [ %inc77, %for.inc76 ], [ 0, %for.cond13.preheader.preheader ] 215 %cmp1424 = icmp sgt i64 %n, 0 216 br i1 %cmp1424, label %for.cond16.preheader.preheader, label %for.inc76 217 218for.cond16.preheader.preheader: ; preds = %for.cond13.preheader 219 br label %for.cond16.preheader 220 221for.cond16.preheader: ; preds = %for.cond16.preheader.preheader, %for.inc73 222 %B.addr.526 = phi i64* [ %B.addr.6.lcssa, %for.inc73 ], [ %B.addr.430, %for.cond16.preheader.preheader ] 223 %o.025 = phi i64 [ %inc74, %for.inc73 ], [ 0, %for.cond16.preheader.preheader ] 224 %cmp1720 = icmp sgt i64 %n, 0 225 br i1 %cmp1720, label %for.cond19.preheader.preheader, label %for.inc73 226 227for.cond19.preheader.preheader: ; preds = %for.cond16.preheader 228 br label %for.cond19.preheader 229 230for.cond19.preheader: ; preds = %for.cond19.preheader.preheader, %for.inc70 231 %B.addr.622 = phi i64* [ %B.addr.7.lcssa, %for.inc70 ], [ %B.addr.526, %for.cond19.preheader.preheader ] 232 %p.021 = phi i64 [ %inc71, %for.inc70 ], [ 0, %for.cond19.preheader.preheader ] 233 %cmp2016 = icmp sgt i64 %n, 0 234 br i1 %cmp2016, label %for.cond22.preheader.preheader, label %for.inc70 235 236for.cond22.preheader.preheader: ; preds = %for.cond19.preheader 237 br label %for.cond22.preheader 238 239for.cond22.preheader: ; preds = %for.cond22.preheader.preheader, %for.inc67 240 %B.addr.718 = phi i64* [ %B.addr.8.lcssa, %for.inc67 ], [ %B.addr.622, %for.cond22.preheader.preheader ] 241 %q.017 = phi i64 [ %inc68, %for.inc67 ], [ 0, %for.cond22.preheader.preheader ] 242 %cmp2312 = icmp sgt i64 %n, 0 243 br i1 %cmp2312, label %for.cond25.preheader.preheader, label %for.inc67 244 245for.cond25.preheader.preheader: ; preds = %for.cond22.preheader 246 br label %for.cond25.preheader 247 248for.cond25.preheader: ; preds = %for.cond25.preheader.preheader, %for.inc64 249 %B.addr.814 = phi i64* [ %B.addr.9.lcssa, %for.inc64 ], [ %B.addr.718, %for.cond25.preheader.preheader ] 250 %r.013 = phi i64 [ %inc65, %for.inc64 ], [ 0, %for.cond25.preheader.preheader ] 251 %cmp268 = icmp sgt i64 %n, 0 252 br i1 %cmp268, label %for.cond28.preheader.preheader, label %for.inc64 253 254for.cond28.preheader.preheader: ; preds = %for.cond25.preheader 255 br label %for.cond28.preheader 256 257for.cond28.preheader: ; preds = %for.cond28.preheader.preheader, %for.inc61 258 %B.addr.910 = phi i64* [ %B.addr.10.lcssa, %for.inc61 ], [ %B.addr.814, %for.cond28.preheader.preheader ] 259 %s.09 = phi i64 [ %inc62, %for.inc61 ], [ 0, %for.cond28.preheader.preheader ] 260 %cmp294 = icmp sgt i64 %n, 0 261 br i1 %cmp294, label %for.cond31.preheader.preheader, label %for.inc61 262 263for.cond31.preheader.preheader: ; preds = %for.cond28.preheader 264 br label %for.cond31.preheader 265 266for.cond31.preheader: ; preds = %for.cond31.preheader.preheader, %for.inc58 267 %u.06 = phi i64 [ %inc59, %for.inc58 ], [ 0, %for.cond31.preheader.preheader ] 268 %B.addr.105 = phi i64* [ %B.addr.11.lcssa, %for.inc58 ], [ %B.addr.910, %for.cond31.preheader.preheader ] 269 %cmp321 = icmp sgt i64 %n, 0 270 br i1 %cmp321, label %for.body33.preheader, label %for.inc58 271 272for.body33.preheader: ; preds = %for.cond31.preheader 273 br label %for.body33 274 275for.body33: ; preds = %for.body33.preheader, %for.body33 276 %t.03 = phi i64 [ %inc, %for.body33 ], [ 0, %for.body33.preheader ] 277 %B.addr.112 = phi i64* [ %incdec.ptr, %for.body33 ], [ %B.addr.105, %for.body33.preheader ] 278 %add = add nsw i64 %r.013, %s.09 279 %add34 = add nsw i64 %p.021, %q.017 280 %mul = shl nsw i64 %l.033, 1 281 %add3547 = or i64 %mul, 1 282 %sub = add nsw i64 %k.037, -1 283 %sub36 = add nsw i64 %i.045, -3 284 %arrayidx43 = getelementptr inbounds [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]], [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64 %sub36, i64 %j.041, i64 2, i64 %sub, i64 %add3547, i64 %m.029, i64 %add34, i64 %add 285 store i64 %i.045, i64* %arrayidx43, align 8 286 %add44 = add nsw i64 %t.03, 2 287 %add45 = add nsw i64 %n, 1 288 %mul46 = mul nsw i64 %l.033, 3 289 %sub47 = add nsw i64 %mul46, -1 290 %sub48 = sub nsw i64 1, %k.037 291 %add49 = add nsw i64 %i.045, 3 292 %arrayidx57 = getelementptr inbounds [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]], [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64 %add49, i64 2, i64 %u.06, i64 %sub48, i64 %sub47, i64 %o.025, i64 %add45, i64 %add44 293 %0 = load i64, i64* %arrayidx57, align 8 294 %incdec.ptr = getelementptr inbounds i64, i64* %B.addr.112, i64 1 295 store i64 %0, i64* %B.addr.112, align 8 296 %inc = add nsw i64 %t.03, 1 297 %exitcond = icmp ne i64 %inc, %n 298 br i1 %exitcond, label %for.body33, label %for.inc58.loopexit 299 300for.inc58.loopexit: ; preds = %for.body33 301 %scevgep = getelementptr i64, i64* %B.addr.105, i64 %n 302 br label %for.inc58 303 304for.inc58: ; preds = %for.inc58.loopexit, %for.cond31.preheader 305 %B.addr.11.lcssa = phi i64* [ %B.addr.105, %for.cond31.preheader ], [ %scevgep, %for.inc58.loopexit ] 306 %inc59 = add nsw i64 %u.06, 1 307 %exitcond48 = icmp ne i64 %inc59, %n 308 br i1 %exitcond48, label %for.cond31.preheader, label %for.inc61.loopexit 309 310for.inc61.loopexit: ; preds = %for.inc58 311 %B.addr.11.lcssa.lcssa = phi i64* [ %B.addr.11.lcssa, %for.inc58 ] 312 br label %for.inc61 313 314for.inc61: ; preds = %for.inc61.loopexit, %for.cond28.preheader 315 %B.addr.10.lcssa = phi i64* [ %B.addr.910, %for.cond28.preheader ], [ %B.addr.11.lcssa.lcssa, %for.inc61.loopexit ] 316 %inc62 = add nsw i64 %s.09, 1 317 %exitcond49 = icmp ne i64 %inc62, %n 318 br i1 %exitcond49, label %for.cond28.preheader, label %for.inc64.loopexit 319 320for.inc64.loopexit: ; preds = %for.inc61 321 %B.addr.10.lcssa.lcssa = phi i64* [ %B.addr.10.lcssa, %for.inc61 ] 322 br label %for.inc64 323 324for.inc64: ; preds = %for.inc64.loopexit, %for.cond25.preheader 325 %B.addr.9.lcssa = phi i64* [ %B.addr.814, %for.cond25.preheader ], [ %B.addr.10.lcssa.lcssa, %for.inc64.loopexit ] 326 %inc65 = add nsw i64 %r.013, 1 327 %exitcond50 = icmp ne i64 %inc65, %n 328 br i1 %exitcond50, label %for.cond25.preheader, label %for.inc67.loopexit 329 330for.inc67.loopexit: ; preds = %for.inc64 331 %B.addr.9.lcssa.lcssa = phi i64* [ %B.addr.9.lcssa, %for.inc64 ] 332 br label %for.inc67 333 334for.inc67: ; preds = %for.inc67.loopexit, %for.cond22.preheader 335 %B.addr.8.lcssa = phi i64* [ %B.addr.718, %for.cond22.preheader ], [ %B.addr.9.lcssa.lcssa, %for.inc67.loopexit ] 336 %inc68 = add nsw i64 %q.017, 1 337 %exitcond51 = icmp ne i64 %inc68, %n 338 br i1 %exitcond51, label %for.cond22.preheader, label %for.inc70.loopexit 339 340for.inc70.loopexit: ; preds = %for.inc67 341 %B.addr.8.lcssa.lcssa = phi i64* [ %B.addr.8.lcssa, %for.inc67 ] 342 br label %for.inc70 343 344for.inc70: ; preds = %for.inc70.loopexit, %for.cond19.preheader 345 %B.addr.7.lcssa = phi i64* [ %B.addr.622, %for.cond19.preheader ], [ %B.addr.8.lcssa.lcssa, %for.inc70.loopexit ] 346 %inc71 = add nsw i64 %p.021, 1 347 %exitcond52 = icmp ne i64 %inc71, %n 348 br i1 %exitcond52, label %for.cond19.preheader, label %for.inc73.loopexit 349 350for.inc73.loopexit: ; preds = %for.inc70 351 %B.addr.7.lcssa.lcssa = phi i64* [ %B.addr.7.lcssa, %for.inc70 ] 352 br label %for.inc73 353 354for.inc73: ; preds = %for.inc73.loopexit, %for.cond16.preheader 355 %B.addr.6.lcssa = phi i64* [ %B.addr.526, %for.cond16.preheader ], [ %B.addr.7.lcssa.lcssa, %for.inc73.loopexit ] 356 %inc74 = add nsw i64 %o.025, 1 357 %exitcond53 = icmp ne i64 %inc74, %n 358 br i1 %exitcond53, label %for.cond16.preheader, label %for.inc76.loopexit 359 360for.inc76.loopexit: ; preds = %for.inc73 361 %B.addr.6.lcssa.lcssa = phi i64* [ %B.addr.6.lcssa, %for.inc73 ] 362 br label %for.inc76 363 364for.inc76: ; preds = %for.inc76.loopexit, %for.cond13.preheader 365 %B.addr.5.lcssa = phi i64* [ %B.addr.430, %for.cond13.preheader ], [ %B.addr.6.lcssa.lcssa, %for.inc76.loopexit ] 366 %inc77 = add nsw i64 %m.029, 1 367 %exitcond54 = icmp ne i64 %inc77, %n 368 br i1 %exitcond54, label %for.cond13.preheader, label %for.inc79.loopexit 369 370for.inc79.loopexit: ; preds = %for.inc76 371 %B.addr.5.lcssa.lcssa = phi i64* [ %B.addr.5.lcssa, %for.inc76 ] 372 br label %for.inc79 373 374for.inc79: ; preds = %for.inc79.loopexit, %for.cond10.preheader 375 %B.addr.4.lcssa = phi i64* [ %B.addr.334, %for.cond10.preheader ], [ %B.addr.5.lcssa.lcssa, %for.inc79.loopexit ] 376 %inc80 = add nsw i64 %l.033, 1 377 %exitcond55 = icmp ne i64 %inc80, %n 378 br i1 %exitcond55, label %for.cond10.preheader, label %for.inc82.loopexit 379 380for.inc82.loopexit: ; preds = %for.inc79 381 %B.addr.4.lcssa.lcssa = phi i64* [ %B.addr.4.lcssa, %for.inc79 ] 382 br label %for.inc82 383 384for.inc82: ; preds = %for.inc82.loopexit, %for.cond7.preheader 385 %B.addr.3.lcssa = phi i64* [ %B.addr.238, %for.cond7.preheader ], [ %B.addr.4.lcssa.lcssa, %for.inc82.loopexit ] 386 %inc83 = add nsw i64 %k.037, 1 387 %exitcond56 = icmp ne i64 %inc83, %n 388 br i1 %exitcond56, label %for.cond7.preheader, label %for.inc85.loopexit 389 390for.inc85.loopexit: ; preds = %for.inc82 391 %B.addr.3.lcssa.lcssa = phi i64* [ %B.addr.3.lcssa, %for.inc82 ] 392 br label %for.inc85 393 394for.inc85: ; preds = %for.inc85.loopexit, %for.cond4.preheader 395 %B.addr.2.lcssa = phi i64* [ %B.addr.142, %for.cond4.preheader ], [ %B.addr.3.lcssa.lcssa, %for.inc85.loopexit ] 396 %inc86 = add nsw i64 %j.041, 1 397 %exitcond57 = icmp ne i64 %inc86, %n 398 br i1 %exitcond57, label %for.cond4.preheader, label %for.inc88.loopexit 399 400for.inc88.loopexit: ; preds = %for.inc85 401 %B.addr.2.lcssa.lcssa = phi i64* [ %B.addr.2.lcssa, %for.inc85 ] 402 br label %for.inc88 403 404for.inc88: ; preds = %for.inc88.loopexit, %for.cond1.preheader 405 %B.addr.1.lcssa = phi i64* [ %B.addr.046, %for.cond1.preheader ], [ %B.addr.2.lcssa.lcssa, %for.inc88.loopexit ] 406 %inc89 = add nsw i64 %i.045, 1 407 %exitcond58 = icmp ne i64 %inc89, %n 408 br i1 %exitcond58, label %for.cond1.preheader, label %for.end90.loopexit 409 410for.end90.loopexit: ; preds = %for.inc88 411 br label %for.end90 412 413for.end90: ; preds = %for.end90.loopexit, %entry 414 ret void 415} 416 417 418;;void p4(int *A, int *B, long int n) { 419;; for (char i = 0; i < n; i++) { 420;; A[i + 2] = i; 421;; *B++ = A[i]; 422 423define void @p4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { 424entry: 425 %cmp1 = icmp sgt i64 %n, 0 426 br i1 %cmp1, label %for.body.preheader, label %for.end 427 428; CHECK: da analyze - output [*]! 429; CHECK: da analyze - flow [*|<]! 430; CHECK: da analyze - confused! 431; CHECK: da analyze - none! 432; CHECK: da analyze - confused! 433; CHECK: da analyze - none! 434 435for.body.preheader: ; preds = %entry 436 br label %for.body 437 438for.body: ; preds = %for.body.preheader, %for.body 439 %i.03 = phi i8 [ %inc, %for.body ], [ 0, %for.body.preheader ] 440 %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ] 441 %conv2 = sext i8 %i.03 to i32 442 %conv3 = sext i8 %i.03 to i64 443 %add = add i64 %conv3, 2 444 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %add 445 store i32 %conv2, i32* %arrayidx, align 4 446 %idxprom4 = sext i8 %i.03 to i64 447 %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %idxprom4 448 %0 = load i32, i32* %arrayidx5, align 4 449 %incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1 450 store i32 %0, i32* %B.addr.02, align 4 451 %inc = add i8 %i.03, 1 452 %conv = sext i8 %inc to i64 453 %cmp = icmp slt i64 %conv, %n 454 br i1 %cmp, label %for.body, label %for.end.loopexit 455 456for.end.loopexit: ; preds = %for.body 457 br label %for.end 458 459for.end: ; preds = %for.end.loopexit, %entry 460 ret void 461} 462 463 464;;void p5(int *A, int *B, long int n) { 465;; for (short i = 0; i < n; i++) { 466;; A[i + 2] = i; 467;; *B++ = A[i]; 468 469define void @p5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { 470entry: 471 %cmp1 = icmp sgt i64 %n, 0 472 br i1 %cmp1, label %for.body.preheader, label %for.end 473 474; CHECK: da analyze - output [*]! 475; CHECK: da analyze - flow [*|<]! 476; CHECK: da analyze - confused! 477; CHECK: da analyze - none! 478; CHECK: da analyze - confused! 479; CHECK: da analyze - none! 480 481for.body.preheader: ; preds = %entry 482 br label %for.body 483 484for.body: ; preds = %for.body.preheader, %for.body 485 %i.03 = phi i16 [ %inc, %for.body ], [ 0, %for.body.preheader ] 486 %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ] 487 %conv2 = sext i16 %i.03 to i32 488 %conv3 = sext i16 %i.03 to i64 489 %add = add i64 %conv3, 2 490 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %add 491 store i32 %conv2, i32* %arrayidx, align 4 492 %idxprom4 = sext i16 %i.03 to i64 493 %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %idxprom4 494 %0 = load i32, i32* %arrayidx5, align 4 495 %incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1 496 store i32 %0, i32* %B.addr.02, align 4 497 %inc = add i16 %i.03, 1 498 %conv = sext i16 %inc to i64 499 %cmp = icmp slt i64 %conv, %n 500 br i1 %cmp, label %for.body, label %for.end.loopexit 501 502for.end.loopexit: ; preds = %for.body 503 br label %for.end 504 505for.end: ; preds = %for.end.loopexit, %entry 506 ret void 507} 508 509 510;;void p6(int *A, int *B, long int n) { 511;; for (int i = 0; i < n; i++) { 512;; A[i + 2] = i; 513;; *B++ = A[i]; 514 515define void @p6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { 516entry: 517 %cmp1 = icmp sgt i64 %n, 0 518 br i1 %cmp1, label %for.body.preheader, label %for.end 519 520; CHECK: da analyze - none! 521; CHECK: da analyze - consistent flow [2]! 522; CHECK: da analyze - confused! 523; CHECK: da analyze - none! 524; CHECK: da analyze - confused! 525; CHECK: da analyze - none! 526 527for.body.preheader: ; preds = %entry 528 br label %for.body 529 530for.body: ; preds = %for.body.preheader, %for.body 531 %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] 532 %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ] 533 %0 = add nsw i64 %indvars.iv, 2 534 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %0 535 %1 = trunc i64 %indvars.iv to i32 536 store i32 %1, i32* %arrayidx, align 4 537 %arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv 538 %2 = load i32, i32* %arrayidx3, align 4 539 %incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1 540 store i32 %2, i32* %B.addr.02, align 4 541 %indvars.iv.next = add i64 %indvars.iv, 1 542 %exitcond = icmp ne i64 %indvars.iv.next, %n 543 br i1 %exitcond, label %for.body, label %for.end.loopexit 544 545for.end.loopexit: ; preds = %for.body 546 br label %for.end 547 548for.end: ; preds = %for.end.loopexit, %entry 549 ret void 550} 551 552 553;;void p7(unsigned *A, unsigned *B, char n) { 554;; A[n] = 0; 555;; *B = A[n + 1]; 556 557define void @p7(i32* %A, i32* %B, i8 signext %n) nounwind uwtable ssp { 558entry: 559 %idxprom = sext i8 %n to i64 560 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %idxprom 561 562; CHECK: da analyze - none! 563; CHECK: da analyze - none! 564; CHECK: da analyze - confused! 565; CHECK: da analyze - none! 566; CHECK: da analyze - confused! 567; CHECK: da analyze - none! 568 569 store i32 0, i32* %arrayidx, align 4 570 %conv = sext i8 %n to i64 571 %add = add i64 %conv, 1 572 %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %add 573 %0 = load i32, i32* %arrayidx2, align 4 574 store i32 %0, i32* %B, align 4 575 ret void 576} 577 578 579;;void p8(unsigned *A, unsigned *B, short n) { 580;; A[n] = 0; 581;; *B = A[n + 1]; 582 583define void @p8(i32* %A, i32* %B, i16 signext %n) nounwind uwtable ssp { 584entry: 585 %idxprom = sext i16 %n to i64 586 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %idxprom 587 store i32 0, i32* %arrayidx, align 4 588 589; CHECK: da analyze - none! 590; CHECK: da analyze - none! 591; CHECK: da analyze - confused! 592; CHECK: da analyze - none! 593; CHECK: da analyze - confused! 594; CHECK: da analyze - none! 595 596 %conv = sext i16 %n to i64 597 %add = add i64 %conv, 1 598 %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %add 599 %0 = load i32, i32* %arrayidx2, align 4 600 store i32 %0, i32* %B, align 4 601 ret void 602} 603 604 605;;void p9(unsigned *A, unsigned *B, int n) { 606;; A[n] = 0; 607;; *B = A[n + 1]; 608 609define void @p9(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp { 610entry: 611 %idxprom = sext i32 %n to i64 612 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %idxprom 613 store i32 0, i32* %arrayidx, align 4 614 615; CHECK: da analyze - none! 616; CHECK: da analyze - none! 617; CHECK: da analyze - confused! 618; CHECK: da analyze - none! 619; CHECK: da analyze - confused! 620; CHECK: da analyze - none! 621 622 %add = add nsw i32 %n, 1 623 %idxprom1 = sext i32 %add to i64 624 %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %idxprom1 625 %0 = load i32, i32* %arrayidx2, align 4 626 store i32 %0, i32* %B, align 4 627 ret void 628} 629 630 631;;void p10(unsigned *A, unsigned *B, unsigned n) { 632;; A[n] = 0; 633;; *B = A[n + 1]; 634 635define void @p10(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp { 636entry: 637 %idxprom = zext i32 %n to i64 638 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %idxprom 639 store i32 0, i32* %arrayidx, align 4 640 641; CHECK: da analyze - none! 642; CHECK: da analyze - none! 643; CHECK: da analyze - confused! 644; CHECK: da analyze - none! 645; CHECK: da analyze - confused! 646; CHECK: da analyze - none! 647 648 %add = add i32 %n, 1 649 %idxprom1 = zext i32 %add to i64 650 %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %idxprom1 651 %0 = load i32, i32* %arrayidx2, align 4 652 store i32 %0, i32* %B, align 4 653 ret void 654} 655 656 657;;typedef struct { int v; } S; 658;; 659;;void f(S *s, unsigned size) { 660;; S *i = s, *e = s + size - 1; 661;; while (i != e) { 662;; *i = *(i + 1); 663;; ++i; 664 665%struct.S = type { i32 } 666 667define void @f(%struct.S* %s, i32 %size) nounwind uwtable ssp { 668entry: 669 %idx.ext = zext i32 %size to i64 670 %add.ptr.sum = add i64 %idx.ext, -1 671 %add.ptr1 = getelementptr inbounds %struct.S, %struct.S* %s, i64 %add.ptr.sum 672 %cmp1 = icmp eq i64 %add.ptr.sum, 0 673 br i1 %cmp1, label %while.end, label %while.body.preheader 674 675; CHECK: da analyze - none! 676; CHECK: da analyze - consistent anti [1]! 677; CHECK: da analyze - none! 678 679while.body.preheader: ; preds = %entry 680 br label %while.body 681 682while.body: ; preds = %while.body.preheader, %while.body 683 %i.02 = phi %struct.S* [ %incdec.ptr, %while.body ], [ %s, %while.body.preheader ] 684 %0 = getelementptr inbounds %struct.S, %struct.S* %i.02, i64 1, i32 0 685 %1 = load i32, i32* %0, align 4 686 %2 = getelementptr inbounds %struct.S, %struct.S* %i.02, i64 0, i32 0 687 store i32 %1, i32* %2, align 4 688 %incdec.ptr = getelementptr inbounds %struct.S, %struct.S* %i.02, i64 1 689 %cmp = icmp eq %struct.S* %incdec.ptr, %add.ptr1 690 br i1 %cmp, label %while.end.loopexit, label %while.body 691 692while.end.loopexit: ; preds = %while.body 693 br label %while.end 694 695while.end: ; preds = %while.end.loopexit, %entry 696 ret void 697} 698 699declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind 700