1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 2; RUN: opt -p loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -S %s | FileCheck %s 3 4target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2" 5 6; Test with blend recipe in header VPBB, from 7; https://github.com/llvm/llvm-project/issues/88297. 8define i64 @pr88297() { 9; CHECK-LABEL: define i64 @pr88297() { 10; CHECK-NEXT: entry: 11; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 12; CHECK: vector.ph: 13; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 14; CHECK: vector.body: 15; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 16; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4 17; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1000 18; CHECK-NEXT: br i1 [[TMP0]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 19; CHECK: middle.block: 20; CHECK-NEXT: br i1 false, label [[EXIT:%.*]], label [[SCALAR_PH]] 21; CHECK: scalar.ph: 22; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 1000, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 23; CHECK-NEXT: br label [[LOOP_HEADER:%.*]] 24; CHECK: loop.header: 25; CHECK-NEXT: [[IV:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ] 26; CHECK-NEXT: br i1 false, label [[LOOP_LATCH]], label [[THEN:%.*]] 27; CHECK: then: 28; CHECK-NEXT: br label [[LOOP_LATCH]] 29; CHECK: loop.latch: 30; CHECK-NEXT: [[R:%.*]] = phi i64 [ 1, [[THEN]] ], [ 0, [[LOOP_HEADER]] ] 31; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 32; CHECK-NEXT: [[ICMP:%.*]] = icmp sgt i32 [[IV]], 1000 33; CHECK-NEXT: br i1 [[ICMP]], label [[EXIT]], label [[LOOP_HEADER]], !llvm.loop [[LOOP3:![0-9]+]] 34; CHECK: exit: 35; CHECK-NEXT: [[R_LCSSA:%.*]] = phi i64 [ [[R]], [[LOOP_LATCH]] ], [ 1, [[MIDDLE_BLOCK]] ] 36; CHECK-NEXT: ret i64 [[R_LCSSA]] 37; 38entry: 39 br label %loop.header 40 41loop.header: 42 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop.latch ] 43 br i1 false, label %loop.latch, label %then 44 45then: 46 br label %loop.latch 47 48loop.latch: 49 %r = phi i64 [ 1, %then ], [ 0, %loop.header ] 50 %iv.next = add i32 %iv, 1 51 %icmp = icmp sgt i32 %iv, 1000 52 br i1 %icmp, label %exit, label %loop.header 53 54exit: 55 %r.lcssa = phi i64 [ %r, %loop.latch ] 56 ret i64 %r.lcssa 57} 58 59define i64 @pr88297_incoming_ops_reordered() { 60; CHECK-LABEL: define i64 @pr88297_incoming_ops_reordered() { 61; CHECK-NEXT: entry: 62; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 63; CHECK: vector.ph: 64; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 65; CHECK: vector.body: 66; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 67; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4 68; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1000 69; CHECK-NEXT: br i1 [[TMP0]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] 70; CHECK: middle.block: 71; CHECK-NEXT: br i1 false, label [[EXIT:%.*]], label [[SCALAR_PH]] 72; CHECK: scalar.ph: 73; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 1000, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 74; CHECK-NEXT: br label [[LOOP_HEADER:%.*]] 75; CHECK: loop.header: 76; CHECK-NEXT: [[IV:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ] 77; CHECK-NEXT: br i1 false, label [[LOOP_LATCH]], label [[THEN:%.*]] 78; CHECK: then: 79; CHECK-NEXT: br label [[LOOP_LATCH]] 80; CHECK: loop.latch: 81; CHECK-NEXT: [[R:%.*]] = phi i64 [ 0, [[LOOP_HEADER]] ], [ 1, [[THEN]] ] 82; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 83; CHECK-NEXT: [[ICMP:%.*]] = icmp sgt i32 [[IV]], 1000 84; CHECK-NEXT: br i1 [[ICMP]], label [[EXIT]], label [[LOOP_HEADER]], !llvm.loop [[LOOP5:![0-9]+]] 85; CHECK: exit: 86; CHECK-NEXT: [[R_LCSSA:%.*]] = phi i64 [ [[R]], [[LOOP_LATCH]] ], [ 1, [[MIDDLE_BLOCK]] ] 87; CHECK-NEXT: ret i64 [[R_LCSSA]] 88; 89entry: 90 br label %loop.header 91 92loop.header: 93 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop.latch ] 94 br i1 false, label %loop.latch, label %then 95 96then: 97 br label %loop.latch 98 99loop.latch: 100 %r = phi i64 [ 0, %loop.header ], [ 1, %then ] 101 %iv.next = add i32 %iv, 1 102 %icmp = icmp sgt i32 %iv, 1000 103 br i1 %icmp, label %exit, label %loop.header 104 105exit: 106 %r.lcssa = phi i64 [ %r, %loop.latch ] 107 ret i64 %r.lcssa 108} 109 110define i64 @invar_cond(i1 %c) { 111; CHECK-LABEL: define i64 @invar_cond( 112; CHECK-SAME: i1 [[C:%.*]]) { 113; CHECK-NEXT: entry: 114; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 115; CHECK: vector.ph: 116; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i1> poison, i1 [[C]], i64 0 117; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT]], <4 x i1> poison, <4 x i32> zeroinitializer 118; CHECK-NEXT: [[PREDPHI:%.*]] = select <4 x i1> [[BROADCAST_SPLAT]], <4 x i64> zeroinitializer, <4 x i64> splat (i64 1) 119; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 120; CHECK: vector.body: 121; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 122; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4 123; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1000 124; CHECK-NEXT: br i1 [[TMP0]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] 125; CHECK: middle.block: 126; CHECK-NEXT: [[TMP1:%.*]] = extractelement <4 x i64> [[PREDPHI]], i32 3 127; CHECK-NEXT: br i1 false, label [[EXIT:%.*]], label [[SCALAR_PH]] 128; CHECK: scalar.ph: 129; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 1000, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 130; CHECK-NEXT: br label [[LOOP_HEADER:%.*]] 131; CHECK: loop.header: 132; CHECK-NEXT: [[IV:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ] 133; CHECK-NEXT: br i1 [[C]], label [[LOOP_LATCH]], label [[THEN:%.*]] 134; CHECK: then: 135; CHECK-NEXT: br label [[LOOP_LATCH]] 136; CHECK: loop.latch: 137; CHECK-NEXT: [[R:%.*]] = phi i64 [ 1, [[THEN]] ], [ 0, [[LOOP_HEADER]] ] 138; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 139; CHECK-NEXT: [[ICMP:%.*]] = icmp sgt i32 [[IV]], 1000 140; CHECK-NEXT: br i1 [[ICMP]], label [[EXIT]], label [[LOOP_HEADER]], !llvm.loop [[LOOP7:![0-9]+]] 141; CHECK: exit: 142; CHECK-NEXT: [[R_LCSSA:%.*]] = phi i64 [ [[R]], [[LOOP_LATCH]] ], [ [[TMP1]], [[MIDDLE_BLOCK]] ] 143; CHECK-NEXT: ret i64 [[R_LCSSA]] 144; 145entry: 146 br label %loop.header 147 148loop.header: 149 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop.latch ] 150 br i1 %c, label %loop.latch, label %then 151 152then: 153 br label %loop.latch 154 155loop.latch: 156 %r = phi i64 [ 1, %then ], [ 0, %loop.header ] 157 %iv.next = add i32 %iv, 1 158 %icmp = icmp sgt i32 %iv, 1000 159 br i1 %icmp, label %exit, label %loop.header 160 161exit: 162 %r.lcssa = phi i64 [ %r, %loop.latch ] 163 ret i64 %r.lcssa 164} 165 166define i64 @invar_cond_incoming_ops_reordered(i1 %c) { 167; CHECK-LABEL: define i64 @invar_cond_incoming_ops_reordered( 168; CHECK-SAME: i1 [[C:%.*]]) { 169; CHECK-NEXT: entry: 170; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 171; CHECK: vector.ph: 172; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i1> poison, i1 [[C]], i64 0 173; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT]], <4 x i1> poison, <4 x i32> zeroinitializer 174; CHECK-NEXT: [[TMP1:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT]], splat (i1 true) 175; CHECK-NEXT: [[PREDPHI:%.*]] = select <4 x i1> [[TMP1]], <4 x i64> splat (i64 1), <4 x i64> zeroinitializer 176; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 177; CHECK: vector.body: 178; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 179; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4 180; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1000 181; CHECK-NEXT: br i1 [[TMP0]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]] 182; CHECK: middle.block: 183; CHECK-NEXT: [[TMP2:%.*]] = extractelement <4 x i64> [[PREDPHI]], i32 3 184; CHECK-NEXT: br i1 false, label [[EXIT:%.*]], label [[SCALAR_PH]] 185; CHECK: scalar.ph: 186; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 1000, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 187; CHECK-NEXT: br label [[LOOP_HEADER:%.*]] 188; CHECK: loop.header: 189; CHECK-NEXT: [[IV:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ] 190; CHECK-NEXT: br i1 [[C]], label [[LOOP_LATCH]], label [[THEN:%.*]] 191; CHECK: then: 192; CHECK-NEXT: br label [[LOOP_LATCH]] 193; CHECK: loop.latch: 194; CHECK-NEXT: [[R:%.*]] = phi i64 [ 0, [[LOOP_HEADER]] ], [ 1, [[THEN]] ] 195; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 196; CHECK-NEXT: [[ICMP:%.*]] = icmp sgt i32 [[IV]], 1000 197; CHECK-NEXT: br i1 [[ICMP]], label [[EXIT]], label [[LOOP_HEADER]], !llvm.loop [[LOOP9:![0-9]+]] 198; CHECK: exit: 199; CHECK-NEXT: [[R_LCSSA:%.*]] = phi i64 [ [[R]], [[LOOP_LATCH]] ], [ [[TMP2]], [[MIDDLE_BLOCK]] ] 200; CHECK-NEXT: ret i64 [[R_LCSSA]] 201; 202entry: 203 br label %loop.header 204 205loop.header: 206 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop.latch ] 207 br i1 %c, label %loop.latch, label %then 208 209then: 210 br label %loop.latch 211 212loop.latch: 213 %r = phi i64 [ 0, %loop.header ], [ 1, %then ] 214 %iv.next = add i32 %iv, 1 215 %icmp = icmp sgt i32 %iv, 1000 216 br i1 %icmp, label %exit, label %loop.header 217 218exit: 219 %r.lcssa = phi i64 [ %r, %loop.latch ] 220 ret i64 %r.lcssa 221} 222;. 223; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]} 224; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1} 225; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"} 226; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]} 227; CHECK: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]} 228; CHECK: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]} 229; CHECK: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]} 230; CHECK: [[LOOP7]] = distinct !{[[LOOP7]], [[META2]], [[META1]]} 231; CHECK: [[LOOP8]] = distinct !{[[LOOP8]], [[META1]], [[META2]]} 232; CHECK: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]} 233;. 234