193 lines · plain
1 // RUN: mlir-opt -pass-pipeline='builtin.module(llvm.func(canonicalize{region-simplify=aggressive}))' %s | FileCheck %s2 3llvm.func @foo(%arg0: i64)4 5llvm.func @rand() -> i16 7// CHECK-LABEL: func @large_merge_block(8llvm.func @large_merge_block(%arg0: i64) {9 // CHECK: %[[C0:.*]] = llvm.mlir.constant(0 : i64) : i6410 // CHECK: %[[C1:.*]] = llvm.mlir.constant(1 : i64) : i6411 // CHECK: %[[C2:.*]] = llvm.mlir.constant(2 : i64) : i6412 // CHECK: %[[C3:.*]] = llvm.mlir.constant(3 : i64) : i6413 // CHECK: %[[C4:.*]] = llvm.mlir.constant(4 : i64) : i6414 15 // CHECK: llvm.cond_br %5, ^bb1(%[[C1]], %[[C3]], %[[C4]], %[[C2]] : i64, i64, i64, i64), ^bb1(%[[C4]], %[[C2]], %[[C1]], %[[C3]] : i64, i64, i64, i64)16 // CHECK: ^bb{{.*}}(%[[arg0:.*]]: i64, %[[arg1:.*]]: i64, %[[arg2:.*]]: i64, %[[arg3:.*]]: i64):17 // CHECK: llvm.cond_br %{{.*}}, ^bb2(%[[arg0]] : i64), ^bb2(%[[arg3]] : i64)18 // CHECK: ^bb{{.*}}(%11: i64):19 // CHECK: llvm.br ^bb{{.*}}20 // CHECK: ^bb{{.*}}:21 // CHECK: llvm.call22 // CHECK: llvm.cond_br {{.*}}, ^bb{{.*}}(%[[arg1]] : i64), ^bb{{.*}}(%[[arg2]] : i64)23 // CHECK: ^bb{{.*}}:24 // CHECK: llvm.call25 // CHECK llvm.br ^bb{{.*}}26 27 %0 = llvm.mlir.constant(0 : i64) : i6428 %1 = llvm.mlir.constant(1 : i64) : i6429 %2 = llvm.mlir.constant(2 : i64) : i6430 %3 = llvm.mlir.constant(3 : i64) : i6431 %4 = llvm.mlir.constant(4 : i64) : i6432 %10 = llvm.icmp "eq" %arg0, %0 : i6433 llvm.cond_br %10, ^bb1, ^bb1434^bb1: // pred: ^bb035 %11 = llvm.call @rand() : () -> i136 llvm.cond_br %11, ^bb2, ^bb337^bb2: // pred: ^bb138 llvm.call @foo(%1) : (i64) -> ()39 llvm.br ^bb440^bb3: // pred: ^bb141 llvm.call @foo(%2) : (i64) -> ()42 llvm.br ^bb443^bb4: // 2 preds: ^bb2, ^bb344 %14 = llvm.call @rand() : () -> i145 llvm.cond_br %14, ^bb5, ^bb646^bb5: // pred: ^bb447 llvm.call @foo(%3) : (i64) -> ()48 llvm.br ^bb1349^bb6: // pred: ^bb450 llvm.call @foo(%4) : (i64) -> ()51 llvm.br ^bb1352^bb13: // 2 preds: ^bb11, ^bb1253 llvm.br ^bb2754^bb14: // pred: ^bb055 %23 = llvm.call @rand() : () -> i156 llvm.cond_br %23, ^bb15, ^bb1657^bb15: // pred: ^bb1458 llvm.call @foo(%4) : (i64) -> ()59 llvm.br ^bb1760^bb16: // pred: ^bb1461 llvm.call @foo(%3) : (i64) -> ()62 llvm.br ^bb1763^bb17: // 2 preds: ^bb15, ^bb1664 %26 = llvm.call @rand() : () -> i165 llvm.cond_br %26, ^bb18, ^bb1966^bb18: // pred: ^bb1767 llvm.call @foo(%2) : (i64) -> ()68 llvm.br ^bb2669^bb19: // pred: ^bb1770 llvm.call @foo(%1) : (i64) -> ()71 llvm.br ^bb2672^bb26: // 2 preds: ^bb24, ^bb2573 llvm.br ^bb2774^bb27: // 2 preds: ^bb13, ^bb2675 llvm.return76}77 78llvm.func @redundant_args0(%cond : i1) {79 %0 = llvm.mlir.constant(0 : i64) : i6480 %2 = llvm.mlir.constant(1 : i64) : i6481 %3 = llvm.mlir.constant(2 : i64) : i6482 // CHECK %[[C0:.*]] = llvm.mlir.constant(0 : i64) : i6483 // CHECK %[[C1:.*]] = llvm.mlir.constant(1 : i64) : i6484 // CHECK %[[C2:.*]] = llvm.mlir.constant(2 : i64) : i6485 86 llvm.cond_br %cond, ^bb1, ^bb287 88 // CHECK: llvm.cond_br %{{.*}}, ^bb{{.*}}(%[[C0]], %[[C0]] : i64, i64), ^bb{{.*}}(%[[C1]], %[[C2]] : i64, i64)89 // CHECK: ^bb{{.*}}(%{{.*}}: i64, %{{.*}}: i64)90^bb1:91 llvm.call @foo(%0) : (i64) -> ()92 llvm.call @foo(%0) : (i64) -> ()93 llvm.br ^bb394^bb2:95 llvm.call @foo(%2) : (i64) -> ()96 llvm.call @foo(%3) : (i64) -> ()97 llvm.br ^bb398^bb3:99 llvm.return100}101 102llvm.func @redundant_args1(%cond : i1) {103 %0 = llvm.mlir.constant(0 : i64) : i64104 %2 = llvm.mlir.constant(1 : i64) : i64105 %3 = llvm.mlir.constant(2 : i64) : i64106 // CHECK %[[C0:.*]] = llvm.mlir.constant(0 : i64) : i64107 // CHECK %[[C1:.*]] = llvm.mlir.constant(1 : i64) : i64108 // CHECK %[[C2:.*]] = llvm.mlir.constant(2 : i64) : i64109 110 llvm.cond_br %cond, ^bb1, ^bb2111 112 // CHECK: llvm.cond_br %{{.*}}, ^bb{{.*}}(%[[C1]], %[[C2]] : i64, i64), ^bb{{.*}}(%[[C0]], %[[C0]] : i64, i64)113 // CHECK: ^bb{{.*}}(%{{.*}}: i64, %{{.*}}: i64)114^bb1:115 llvm.call @foo(%2) : (i64) -> ()116 llvm.call @foo(%3) : (i64) -> ()117 llvm.br ^bb3118^bb2:119 llvm.call @foo(%0) : (i64) -> ()120 llvm.call @foo(%0) : (i64) -> ()121 llvm.br ^bb3122^bb3:123 llvm.return124}125 126llvm.func @redundant_args_complex(%cond : i1) {127 %0 = llvm.mlir.constant(0 : i64) : i64128 %1 = llvm.mlir.constant(1 : i64) : i64129 %2 = llvm.mlir.constant(2 : i64) : i64130 %3 = llvm.mlir.constant(3 : i64) : i64131 // CHECK: %[[C0:.*]] = llvm.mlir.constant(0 : i64) : i64132 // CHECK: %[[C1:.*]] = llvm.mlir.constant(1 : i64) : i64133 // CHECK: %[[C2:.*]] = llvm.mlir.constant(2 : i64) : i64134 // CHECK: %[[C3:.*]] = llvm.mlir.constant(3 : i64) : i64135 136 llvm.cond_br %cond, ^bb1, ^bb2137 138 // CHECK: llvm.cond_br %{{.*}}, ^bb{{.*}}(%[[C2]], %[[C1]], %[[C3]] : i64, i64, i64), ^bb{{.*}}(%[[C0]], %[[C3]], %[[C2]] : i64, i64, i64)139 // CHECK: ^bb{{.*}}(%[[arg0:.*]]: i64, %[[arg1:.*]]: i64, %[[arg2:.*]]: i64):140 // CHECK: llvm.call @foo(%[[arg0]])141 // CHECK: llvm.call @foo(%[[arg0]])142 // CHECK: llvm.call @foo(%[[arg1]])143 // CHECK: llvm.call @foo(%[[C2]])144 // CHECK: llvm.call @foo(%[[arg2]])145 146^bb1:147 llvm.call @foo(%2) : (i64) -> ()148 llvm.call @foo(%2) : (i64) -> ()149 llvm.call @foo(%1) : (i64) -> ()150 llvm.call @foo(%2) : (i64) -> ()151 llvm.call @foo(%3) : (i64) -> ()152 llvm.br ^bb3153^bb2:154 llvm.call @foo(%0) : (i64) -> ()155 llvm.call @foo(%0) : (i64) -> ()156 llvm.call @foo(%3) : (i64) -> ()157 llvm.call @foo(%2) : (i64) -> ()158 llvm.call @foo(%2) : (i64) -> ()159 llvm.br ^bb3160^bb3:161 llvm.return162}163 164llvm.func @blocks_with_args() {165 %0 = llvm.mlir.zero : !llvm.ptr166 %1 = llvm.call @rand() : () -> i1167 // CHECK: %[[c1:.*]] = llvm.mlir.constant(1 : i64)168 // CHECK: %[[c0:.*]] = llvm.mlir.constant(0 : i64)169 // CHECK: %[[cond:.*]] = llvm.call @rand170 %3 = llvm.mlir.constant(0) : i64171 %4 = llvm.mlir.constant(1) : i64172 // CHECK: llvm.cond_br %[[cond]], ^bb1(%[[c1]] : i64), ^bb1(%[[c0]] : i64)173 // CHECK: ^bb1(%{{.*}}: i64):174 // CHECK ^bb2:175 // CHECK ^bb3:176 // CHECK llvm.return177 llvm.cond_br %1, ^bb7(%0 : !llvm.ptr), ^bb1(%0 : !llvm.ptr)178^bb1(%5: !llvm.ptr):179 llvm.store %5, %0 : !llvm.ptr, !llvm.ptr180 llvm.cond_br %1, ^bb2(%3 : i64), ^bb4(%3 : i64)181^bb7(%6: !llvm.ptr):182 llvm.store %6, %0 : !llvm.ptr, !llvm.ptr183 llvm.cond_br %1, ^bb2(%4 : i64), ^bb4(%4 : i64)184^bb2(%7: i64):185 llvm.call @foo(%7) : (i64) -> ()186 llvm.br ^bb8187^bb4(%8: i64):188 llvm.call @foo(%8) : (i64) -> ()189 llvm.br ^bb8190^bb8:191 llvm.return192}193