1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2 3; To test epilogue-vectorization we need to make sure that the vectorizer actually vectorizes the loop. 4; Without a target triple this becomes difficult, unless we force vectorization through user hints. 5; Currently user provided vectorization hints prevent epilogue vectorization unless the forced 6; VF is the same as the epilogue vectorization VF. To make these tests target independent we'll use a 7; trick where both VFs are forced to be the same value. Mismatching VFs are tested in target specific tests. 8; RUN: opt -passes='loop-vectorize' -force-vector-width=4 -enable-epilogue-vectorization -epilogue-vectorization-force-VF=4 -S %s | FileCheck %s 9 10; Some simpler cases are found profitable even without triple or user hints. 11; RUN: opt -passes='loop-vectorize' -enable-epilogue-vectorization -epilogue-vectorization-force-VF=2 -S %s | FileCheck --check-prefix=CHECK-PROFITABLE-BY-DEFAULT %s 12 13target datalayout = "e-m:e-i64:64-n32:64-v128:128:128" 14 15define dso_local void @f1(ptr noalias %aa, ptr noalias %bb, ptr noalias %cc, i32 signext %N) { 16; CHECK-LABEL: @f1( 17; CHECK-NEXT: entry: 18; CHECK-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 0 19; CHECK-NEXT: br i1 [[CMP1]], label [[ITER_CHECK:%.*]], label [[FOR_END:%.*]] 20; CHECK: iter.check: 21; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N]] to i64 22; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4 23; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 24; CHECK: vector.main.loop.iter.check: 25; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4 26; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 27; CHECK: vector.ph: 28; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4 29; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF]] 30; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 31; CHECK: vector.body: 32; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 33; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 34; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds float, ptr [[BB:%.*]], i64 [[TMP0]] 35; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i32 0 36; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP2]], align 4 37; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds float, ptr [[CC:%.*]], i64 [[TMP0]] 38; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds float, ptr [[TMP3]], i32 0 39; CHECK-NEXT: [[WIDE_LOAD2:%.*]] = load <4 x float>, ptr [[TMP4]], align 4 40; CHECK-NEXT: [[TMP5:%.*]] = fadd fast <4 x float> [[WIDE_LOAD]], [[WIDE_LOAD2]] 41; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds float, ptr [[AA:%.*]], i64 [[TMP0]] 42; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds float, ptr [[TMP6]], i32 0 43; CHECK-NEXT: store <4 x float> [[TMP5]], ptr [[TMP7]], align 4 44; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 45; CHECK-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 46; CHECK-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 47; CHECK: middle.block: 48; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]] 49; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 50; CHECK: vec.epilog.iter.check: 51; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_VEC]] 52; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 4 53; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 54; CHECK: vec.epilog.ph: 55; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 56; CHECK-NEXT: [[N_MOD_VF3:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4 57; CHECK-NEXT: [[N_VEC4:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF3]] 58; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 59; CHECK: vec.epilog.vector.body: 60; CHECK-NEXT: [[INDEX6:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT9:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 61; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX6]], 0 62; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds float, ptr [[BB]], i64 [[TMP9]] 63; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds float, ptr [[TMP10]], i32 0 64; CHECK-NEXT: [[WIDE_LOAD7:%.*]] = load <4 x float>, ptr [[TMP11]], align 4 65; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds float, ptr [[CC]], i64 [[TMP9]] 66; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds float, ptr [[TMP12]], i32 0 67; CHECK-NEXT: [[WIDE_LOAD8:%.*]] = load <4 x float>, ptr [[TMP13]], align 4 68; CHECK-NEXT: [[TMP14:%.*]] = fadd fast <4 x float> [[WIDE_LOAD7]], [[WIDE_LOAD8]] 69; CHECK-NEXT: [[TMP15:%.*]] = getelementptr inbounds float, ptr [[AA]], i64 [[TMP9]] 70; CHECK-NEXT: [[TMP16:%.*]] = getelementptr inbounds float, ptr [[TMP15]], i32 0 71; CHECK-NEXT: store <4 x float> [[TMP14]], ptr [[TMP16]], align 4 72; CHECK-NEXT: [[INDEX_NEXT9]] = add nuw i64 [[INDEX6]], 4 73; CHECK-NEXT: [[TMP17:%.*]] = icmp eq i64 [[INDEX_NEXT9]], [[N_VEC4]] 74; CHECK-NEXT: br i1 [[TMP17]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 75; CHECK: vec.epilog.middle.block: 76; CHECK-NEXT: [[CMP_N5:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC4]] 77; CHECK-NEXT: br i1 [[CMP_N5]], label [[FOR_END_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]] 78; CHECK: vec.epilog.scalar.ph: 79; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC4]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ] 80; CHECK-NEXT: br label [[FOR_BODY:%.*]] 81; CHECK: for.body: 82; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] 83; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[BB]], i64 [[INDVARS_IV]] 84; CHECK-NEXT: [[TMP18:%.*]] = load float, ptr [[ARRAYIDX]], align 4 85; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, ptr [[CC]], i64 [[INDVARS_IV]] 86; CHECK-NEXT: [[TMP19:%.*]] = load float, ptr [[ARRAYIDX2]], align 4 87; CHECK-NEXT: [[ADD:%.*]] = fadd fast float [[TMP18]], [[TMP19]] 88; CHECK-NEXT: [[ARRAYIDX4:%.*]] = getelementptr inbounds float, ptr [[AA]], i64 [[INDVARS_IV]] 89; CHECK-NEXT: store float [[ADD]], ptr [[ARRAYIDX4]], align 4 90; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 91; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]] 92; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]], !llvm.loop [[LOOP4:![0-9]+]] 93; CHECK: for.end.loopexit: 94; CHECK-NEXT: br label [[FOR_END]] 95; CHECK: for.end: 96; CHECK-NEXT: ret void 97; 98; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @f1( 99; CHECK-PROFITABLE-BY-DEFAULT-NEXT: entry: 100; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 0 101; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP1]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]] 102; CHECK-PROFITABLE-BY-DEFAULT: for.body.preheader: 103; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N]] to i64 104; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_BODY:%.*]] 105; CHECK-PROFITABLE-BY-DEFAULT: for.body: 106; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] 107; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[BB:%.*]], i64 [[INDVARS_IV]] 108; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = load float, ptr [[ARRAYIDX]], align 4 109; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, ptr [[CC:%.*]], i64 [[INDVARS_IV]] 110; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = load float, ptr [[ARRAYIDX2]], align 4 111; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ADD:%.*]] = fadd fast float [[TMP0]], [[TMP1]] 112; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX4:%.*]] = getelementptr inbounds float, ptr [[AA:%.*]], i64 [[INDVARS_IV]] 113; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store float [[ADD]], ptr [[ARRAYIDX4]], align 4 114; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 115; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]] 116; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] 117; CHECK-PROFITABLE-BY-DEFAULT: for.end.loopexit: 118; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_END]] 119; CHECK-PROFITABLE-BY-DEFAULT: for.end: 120; CHECK-PROFITABLE-BY-DEFAULT-NEXT: ret void 121; 122entry: 123 %cmp1 = icmp sgt i32 %N, 0 124 br i1 %cmp1, label %for.body.preheader, label %for.end 125 126for.body.preheader: ; preds = %entry 127 %wide.trip.count = zext i32 %N to i64 128 br label %for.body 129 130for.body: ; preds = %for.body.preheader, %for.body 131 %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] 132 %arrayidx = getelementptr inbounds float, ptr %bb, i64 %indvars.iv 133 %0 = load float, ptr %arrayidx, align 4 134 %arrayidx2 = getelementptr inbounds float, ptr %cc, i64 %indvars.iv 135 %1 = load float, ptr %arrayidx2, align 4 136 %add = fadd fast float %0, %1 137 %arrayidx4 = getelementptr inbounds float, ptr %aa, i64 %indvars.iv 138 store float %add, ptr %arrayidx4, align 4 139 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 140 %exitcond = icmp ne i64 %indvars.iv.next, %wide.trip.count 141 br i1 %exitcond, label %for.body, label %for.end.loopexit 142 143for.end.loopexit: ; preds = %for.body 144 br label %for.end 145 146for.end: ; preds = %for.end.loopexit, %entry 147 ret void 148} 149 150define dso_local signext i32 @f2(ptr noalias %A, ptr noalias %B, i32 signext %n) { 151; CHECK-LABEL: @f2( 152; CHECK-NEXT: entry: 153; CHECK-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 1 154; CHECK-NEXT: br i1 [[CMP1]], label [[ITER_CHECK:%.*]], label [[FOR_END:%.*]] 155; CHECK: iter.check: 156; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[N]], -1 157; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[TMP0]] to i64 158; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4 159; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_SCEVCHECK:%.*]] 160; CHECK: vector.scevcheck: 161; CHECK-NEXT: [[TMP1:%.*]] = add nsw i64 [[WIDE_TRIP_COUNT]], -1 162; CHECK-NEXT: [[TMP2:%.*]] = trunc i64 [[TMP1]] to i32 163; CHECK-NEXT: [[MUL:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 1, i32 [[TMP2]]) 164; CHECK-NEXT: [[MUL_RESULT:%.*]] = extractvalue { i32, i1 } [[MUL]], 0 165; CHECK-NEXT: [[MUL_OVERFLOW:%.*]] = extractvalue { i32, i1 } [[MUL]], 1 166; CHECK-NEXT: [[TMP3:%.*]] = sub i32 [[TMP0]], [[MUL_RESULT]] 167; CHECK-NEXT: [[TMP4:%.*]] = icmp sgt i32 [[TMP3]], [[TMP0]] 168; CHECK-NEXT: [[TMP5:%.*]] = or i1 [[TMP4]], [[MUL_OVERFLOW]] 169; CHECK-NEXT: [[TMP6:%.*]] = icmp ugt i64 [[TMP1]], 4294967295 170; CHECK-NEXT: [[TMP7:%.*]] = or i1 [[TMP5]], [[TMP6]] 171; CHECK-NEXT: br i1 [[TMP7]], label [[VEC_EPILOG_SCALAR_PH]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 172; CHECK: vector.main.loop.iter.check: 173; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4 174; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 175; CHECK: vector.ph: 176; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4 177; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF]] 178; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 179; CHECK: vector.body: 180; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 181; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX]], 0 182; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i64 [[INDEX]] to i32 183; CHECK-NEXT: [[TMP8:%.*]] = add i32 [[OFFSET_IDX]], 0 184; CHECK-NEXT: [[TMP10:%.*]] = xor i32 [[TMP8]], -1 185; CHECK-NEXT: [[TMP11:%.*]] = add i32 [[TMP10]], [[N]] 186; CHECK-NEXT: [[TMP12:%.*]] = sext i32 [[TMP11]] to i64 187; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds float, ptr [[B:%.*]], i64 [[TMP12]] 188; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds float, ptr [[TMP13]], i32 0 189; CHECK-NEXT: [[TMP15:%.*]] = getelementptr inbounds float, ptr [[TMP14]], i32 -3 190; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP15]], align 4 191; CHECK-NEXT: [[REVERSE:%.*]] = shufflevector <4 x float> [[WIDE_LOAD]], <4 x float> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0> 192; CHECK-NEXT: [[TMP16:%.*]] = fadd fast <4 x float> [[REVERSE]], splat (float 1.000000e+00) 193; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds float, ptr [[A:%.*]], i64 [[TMP9]] 194; CHECK-NEXT: [[TMP18:%.*]] = getelementptr inbounds float, ptr [[TMP17]], i32 0 195; CHECK-NEXT: store <4 x float> [[TMP16]], ptr [[TMP18]], align 4 196; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 197; CHECK-NEXT: [[TMP19:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 198; CHECK-NEXT: br i1 [[TMP19]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] 199; CHECK: middle.block: 200; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]] 201; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 202; CHECK: vec.epilog.iter.check: 203; CHECK-NEXT: [[IND_END4:%.*]] = trunc i64 [[N_VEC]] to i32 204; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_VEC]] 205; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 4 206; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 207; CHECK: vec.epilog.ph: 208; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 209; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4 210; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF2]] 211; CHECK-NEXT: [[IND_END:%.*]] = trunc i64 [[N_VEC3]] to i32 212; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 213; CHECK: vec.epilog.vector.body: 214; CHECK-NEXT: [[INDEX7:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT11:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 215; CHECK-NEXT: [[TMP21:%.*]] = add i64 [[INDEX7]], 0 216; CHECK-NEXT: [[OFFSET_IDX8:%.*]] = trunc i64 [[INDEX7]] to i32 217; CHECK-NEXT: [[TMP20:%.*]] = add i32 [[OFFSET_IDX8]], 0 218; CHECK-NEXT: [[TMP22:%.*]] = xor i32 [[TMP20]], -1 219; CHECK-NEXT: [[TMP23:%.*]] = add i32 [[TMP22]], [[N]] 220; CHECK-NEXT: [[TMP24:%.*]] = sext i32 [[TMP23]] to i64 221; CHECK-NEXT: [[TMP25:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[TMP24]] 222; CHECK-NEXT: [[TMP26:%.*]] = getelementptr inbounds float, ptr [[TMP25]], i32 0 223; CHECK-NEXT: [[TMP27:%.*]] = getelementptr inbounds float, ptr [[TMP26]], i32 -3 224; CHECK-NEXT: [[WIDE_LOAD9:%.*]] = load <4 x float>, ptr [[TMP27]], align 4 225; CHECK-NEXT: [[REVERSE10:%.*]] = shufflevector <4 x float> [[WIDE_LOAD9]], <4 x float> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0> 226; CHECK-NEXT: [[TMP28:%.*]] = fadd fast <4 x float> [[REVERSE10]], splat (float 1.000000e+00) 227; CHECK-NEXT: [[TMP29:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP21]] 228; CHECK-NEXT: [[TMP30:%.*]] = getelementptr inbounds float, ptr [[TMP29]], i32 0 229; CHECK-NEXT: store <4 x float> [[TMP28]], ptr [[TMP30]], align 4 230; CHECK-NEXT: [[INDEX_NEXT11]] = add nuw i64 [[INDEX7]], 4 231; CHECK-NEXT: [[TMP31:%.*]] = icmp eq i64 [[INDEX_NEXT11]], [[N_VEC3]] 232; CHECK-NEXT: br i1 [[TMP31]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] 233; CHECK: vec.epilog.middle.block: 234; CHECK-NEXT: [[CMP_N6:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC3]] 235; CHECK-NEXT: br i1 [[CMP_N6]], label [[FOR_END_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]] 236; CHECK: vec.epilog.scalar.ph: 237; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[VECTOR_SCEVCHECK]] ], [ 0, [[ITER_CHECK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ] 238; CHECK-NEXT: [[BC_RESUME_VAL5:%.*]] = phi i32 [ [[IND_END]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[VECTOR_SCEVCHECK]] ], [ 0, [[ITER_CHECK]] ], [ [[IND_END4]], [[VEC_EPILOG_ITER_CHECK]] ] 239; CHECK-NEXT: br label [[FOR_BODY:%.*]] 240; CHECK: for.body: 241; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] 242; CHECK-NEXT: [[I_014:%.*]] = phi i32 [ [[BC_RESUME_VAL5]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 243; CHECK-NEXT: [[TMP32:%.*]] = xor i32 [[I_014]], -1 244; CHECK-NEXT: [[SUB2:%.*]] = add i32 [[TMP32]], [[N]] 245; CHECK-NEXT: [[IDXPROM:%.*]] = sext i32 [[SUB2]] to i64 246; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[IDXPROM]] 247; CHECK-NEXT: [[TMP33:%.*]] = load float, ptr [[ARRAYIDX]], align 4 248; CHECK-NEXT: [[CONV3:%.*]] = fadd fast float [[TMP33]], 1.000000e+00 249; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDVARS_IV]] 250; CHECK-NEXT: store float [[CONV3]], ptr [[ARRAYIDX5]], align 4 251; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 252; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_014]], 1 253; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]] 254; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]], !llvm.loop [[LOOP7:![0-9]+]] 255; CHECK: for.end.loopexit: 256; CHECK-NEXT: br label [[FOR_END]] 257; CHECK: for.end: 258; CHECK-NEXT: ret i32 0 259; 260; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @f2( 261; CHECK-PROFITABLE-BY-DEFAULT-NEXT: entry: 262; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 1 263; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP1]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]] 264; CHECK-PROFITABLE-BY-DEFAULT: for.body.preheader: 265; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = add i32 [[N]], -1 266; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[TMP0]] to i64 267; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_BODY:%.*]] 268; CHECK-PROFITABLE-BY-DEFAULT: for.body: 269; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] 270; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[I_014:%.*]] = phi i32 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 271; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = xor i32 [[I_014]], -1 272; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[SUB2:%.*]] = add i32 [[TMP1]], [[N]] 273; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IDXPROM:%.*]] = sext i32 [[SUB2]] to i64 274; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[B:%.*]], i64 [[IDXPROM]] 275; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP2:%.*]] = load float, ptr [[ARRAYIDX]], align 4 276; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CONV3:%.*]] = fadd fast float [[TMP2]], 1.000000e+00 277; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds float, ptr [[A:%.*]], i64 [[INDVARS_IV]] 278; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store float [[CONV3]], ptr [[ARRAYIDX5]], align 4 279; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 280; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INC]] = add nuw nsw i32 [[I_014]], 1 281; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]] 282; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] 283; CHECK-PROFITABLE-BY-DEFAULT: for.end.loopexit: 284; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_END]] 285; CHECK-PROFITABLE-BY-DEFAULT: for.end: 286; CHECK-PROFITABLE-BY-DEFAULT-NEXT: ret i32 0 287; 288entry: 289 %cmp1 = icmp sgt i32 %n, 1 290 br i1 %cmp1, label %for.body.preheader, label %for.end 291 292for.body.preheader: ; preds = %entry 293 %0 = add i32 %n, -1 294 %wide.trip.count = zext i32 %0 to i64 295 br label %for.body 296 297for.body: ; preds = %for.body.preheader, %for.body 298 %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] 299 %i.014 = phi i32 [ 0, %for.body.preheader ], [ %inc, %for.body ] 300 %1 = xor i32 %i.014, -1 301 %sub2 = add i32 %1, %n 302 %idxprom = sext i32 %sub2 to i64 303 %arrayidx = getelementptr inbounds float, ptr %B, i64 %idxprom 304 %2 = load float, ptr %arrayidx, align 4 305 %conv3 = fadd fast float %2, 1.000000e+00 306 %arrayidx5 = getelementptr inbounds float, ptr %A, i64 %indvars.iv 307 store float %conv3, ptr %arrayidx5, align 4 308 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 309 %inc = add nuw nsw i32 %i.014, 1 310 %exitcond = icmp ne i64 %indvars.iv.next, %wide.trip.count 311 br i1 %exitcond, label %for.body, label %for.end.loopexit 312 313for.end.loopexit: ; preds = %for.body 314 br label %for.end 315 316for.end: ; preds = %for.end.loopexit, %entry 317 ret i32 0 318} 319 320define void @f3(ptr noalias %A, i64 %n) { 321; CHECK-LABEL: @f3( 322; CHECK-NEXT: iter.check: 323; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], 4 324; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 325; CHECK: vector.main.loop.iter.check: 326; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], 4 327; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 328; CHECK: vector.ph: 329; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 4 330; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] 331; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 332; CHECK: vector.body: 333; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 334; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 335; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[TMP0]] 336; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0 337; CHECK-NEXT: store <4 x i8> splat (i8 1), ptr [[TMP2]], align 1 338; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 339; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 340; CHECK-NEXT: br i1 [[TMP3]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]] 341; CHECK: middle.block: 342; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] 343; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 344; CHECK: vec.epilog.iter.check: 345; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[N]], [[N_VEC]] 346; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 4 347; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 348; CHECK: vec.epilog.ph: 349; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 350; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[N]], 4 351; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 [[N]], [[N_MOD_VF2]] 352; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 353; CHECK: vec.epilog.vector.body: 354; CHECK-NEXT: [[INDEX5:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT6:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 355; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX5]], 0 356; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]] 357; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 0 358; CHECK-NEXT: store <4 x i8> splat (i8 1), ptr [[TMP6]], align 1 359; CHECK-NEXT: [[INDEX_NEXT6]] = add nuw i64 [[INDEX5]], 4 360; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT6]], [[N_VEC3]] 361; CHECK-NEXT: br i1 [[TMP7]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]] 362; CHECK: vec.epilog.middle.block: 363; CHECK-NEXT: [[CMP_N4:%.*]] = icmp eq i64 [[N]], [[N_VEC3]] 364; CHECK-NEXT: br i1 [[CMP_N4]], label [[FOR_END_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]] 365; CHECK: vec.epilog.scalar.ph: 366; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK:%.*]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ] 367; CHECK-NEXT: br label [[FOR_BODY:%.*]] 368; CHECK: for.body: 369; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ] 370; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]] 371; CHECK-NEXT: store i8 1, ptr [[ARRAYIDX]], align 1 372; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 373; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[IV_NEXT]], [[N]] 374; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]], !llvm.loop [[LOOP10:![0-9]+]] 375; CHECK: for.end.loopexit: 376; CHECK-NEXT: br label [[FOR_END:%.*]] 377; CHECK: for.end: 378; CHECK-NEXT: ret void 379; 380; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @f3( 381; CHECK-PROFITABLE-BY-DEFAULT-NEXT: iter.check: 382; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], 2 383; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 384; CHECK-PROFITABLE-BY-DEFAULT: vector.main.loop.iter.check: 385; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], 4 386; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 387; CHECK-PROFITABLE-BY-DEFAULT: vector.ph: 388; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 4 389; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] 390; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VECTOR_BODY:%.*]] 391; CHECK-PROFITABLE-BY-DEFAULT: vector.body: 392; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 393; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 394; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[TMP0]] 395; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0 396; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <4 x i8> splat (i8 1), ptr [[TMP2]], align 1 397; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 398; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP3:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 399; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP3]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 400; CHECK-PROFITABLE-BY-DEFAULT: middle.block: 401; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] 402; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 403; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.iter.check: 404; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[N]], [[N_VEC]] 405; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 2 406; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 407; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.ph: 408; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 409; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[N]], 2 410; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC3:%.*]] = sub i64 [[N]], [[N_MOD_VF2]] 411; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 412; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.vector.body: 413; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX5:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT6:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 414; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP4:%.*]] = add i64 [[INDEX5]], 0 415; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]] 416; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 0 417; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <2 x i8> splat (i8 1), ptr [[TMP6]], align 1 418; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT6]] = add nuw i64 [[INDEX5]], 2 419; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT6]], [[N_VEC3]] 420; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP7]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 421; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.middle.block: 422; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP_N4:%.*]] = icmp eq i64 [[N]], [[N_VEC3]] 423; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP_N4]], label [[FOR_END_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]] 424; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.scalar.ph: 425; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK:%.*]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ] 426; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_BODY:%.*]] 427; CHECK-PROFITABLE-BY-DEFAULT: for.body: 428; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ] 429; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]] 430; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store i8 1, ptr [[ARRAYIDX]], align 1 431; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 432; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[IV_NEXT]], [[N]] 433; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]], !llvm.loop [[LOOP4:![0-9]+]] 434; CHECK-PROFITABLE-BY-DEFAULT: for.end.loopexit: 435; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_END:%.*]] 436; CHECK-PROFITABLE-BY-DEFAULT: for.end: 437; CHECK-PROFITABLE-BY-DEFAULT-NEXT: ret void 438; 439entry: 440 br label %for.body 441 442for.body: ; preds = %for.body.preheader, %for.body 443 %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ] 444 %arrayidx = getelementptr inbounds i8, ptr %A, i64 %iv 445 store i8 1, ptr %arrayidx, align 1 446 %iv.next = add nuw nsw i64 %iv, 1 447 %exitcond = icmp ne i64 %iv.next, %n 448 br i1 %exitcond, label %for.body, label %for.end.loopexit 449 450for.end.loopexit: ; preds = %for.body 451 br label %for.end 452 453for.end: ; preds = %for.end.loopexit, %entry 454 ret void 455} 456 457; Test case for PR54745. 458define void @induction_resume_value_requires_non_trivial_scev_expansion(ptr %dst) { 459; CHECK-LABEL: @induction_resume_value_requires_non_trivial_scev_expansion( 460; CHECK-NEXT: entry: 461; CHECK-NEXT: br label [[ITER_CHECK:%.*]] 462; CHECK: iter.check: 463; CHECK-NEXT: [[INDUCTION_IV:%.*]] = phi i8 [ [[INDUCTION_IV_NEXT:%.*]], [[OUTER_LATCH:%.*]] ], [ -56, [[ENTRY:%.*]] ] 464; CHECK-NEXT: [[INDVAR:%.*]] = phi i8 [ [[INDVAR_NEXT:%.*]], [[OUTER_LATCH]] ], [ 0, [[ENTRY]] ] 465; CHECK-NEXT: [[OUTER_IV:%.*]] = phi i64 [ 2, [[ENTRY]] ], [ [[OUTER_IV_NEXT:%.*]], [[OUTER_LATCH]] ] 466; CHECK-NEXT: [[P2:%.*]] = phi i32 [ -202, [[ENTRY]] ], [ [[ADD:%.*]], [[OUTER_LATCH]] ] 467; CHECK-NEXT: [[TMP0:%.*]] = mul i8 [[INDVAR]], -1 468; CHECK-NEXT: [[TMP1:%.*]] = add i8 [[TMP0]], -3 469; CHECK-NEXT: [[TRUNC_IV:%.*]] = trunc i64 [[OUTER_IV]] to i32 470; CHECK-NEXT: [[ADD]] = add i32 [[P2]], [[TRUNC_IV]] 471; CHECK-NEXT: [[TRUNC_ADD:%.*]] = trunc i32 [[ADD]] to i8 472; CHECK-NEXT: br i1 false, label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 473; CHECK: vector.main.loop.iter.check: 474; CHECK-NEXT: br i1 false, label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 475; CHECK: vector.ph: 476; CHECK-NEXT: [[IND_END:%.*]] = mul i8 84, [[INDUCTION_IV]] 477; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i8> poison, i8 [[INDUCTION_IV]], i64 0 478; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT]], <4 x i8> poison, <4 x i32> zeroinitializer 479; CHECK-NEXT: [[TMP2:%.*]] = mul <4 x i8> <i8 0, i8 1, i8 2, i8 3>, [[DOTSPLAT]] 480; CHECK-NEXT: [[INDUCTION:%.*]] = add <4 x i8> zeroinitializer, [[TMP2]] 481; CHECK-NEXT: [[TMP3:%.*]] = mul i8 [[INDUCTION_IV]], 4 482; CHECK-NEXT: [[DOTSPLATINSERT1:%.*]] = insertelement <4 x i8> poison, i8 [[TMP3]], i64 0 483; CHECK-NEXT: [[DOTSPLAT2:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT1]], <4 x i8> poison, <4 x i32> zeroinitializer 484; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 485; CHECK: vector.body: 486; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 487; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i8> [ [[INDUCTION]], [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ] 488; CHECK-NEXT: [[OFFSET_IDX:%.*]] = add i64 1, [[INDEX]] 489; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0 490; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[DST:%.*]], i64 [[TMP4]] 491; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 0 492; CHECK-NEXT: store <4 x i8> [[VEC_IND]], ptr [[TMP6]], align 1 493; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 494; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i8> [[VEC_IND]], [[DOTSPLAT2]] 495; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], 84 496; CHECK-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]] 497; CHECK: middle.block: 498; CHECK-NEXT: br i1 true, label [[OUTER_LATCH]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 499; CHECK: vec.epilog.iter.check: 500; CHECK-NEXT: [[IND_END5:%.*]] = mul i8 84, [[INDUCTION_IV]] 501; CHECK-NEXT: br i1 true, label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 502; CHECK: vec.epilog.ph: 503; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ 84, [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 504; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 505; CHECK-NEXT: [[IND_END4:%.*]] = mul i8 84, [[INDUCTION_IV]] 506; CHECK-NEXT: [[DOTSPLATINSERT8:%.*]] = insertelement <4 x i8> poison, i8 [[BC_RESUME_VAL]], i64 0 507; CHECK-NEXT: [[DOTSPLAT9:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT8]], <4 x i8> poison, <4 x i32> zeroinitializer 508; CHECK-NEXT: [[DOTSPLATINSERT10:%.*]] = insertelement <4 x i8> poison, i8 [[INDUCTION_IV]], i64 0 509; CHECK-NEXT: [[DOTSPLAT11:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT10]], <4 x i8> poison, <4 x i32> zeroinitializer 510; CHECK-NEXT: [[TMP8:%.*]] = mul <4 x i8> <i8 0, i8 1, i8 2, i8 3>, [[DOTSPLAT11]] 511; CHECK-NEXT: [[INDUCTION12:%.*]] = add <4 x i8> [[DOTSPLAT9]], [[TMP8]] 512; CHECK-NEXT: [[TMP9:%.*]] = mul i8 [[INDUCTION_IV]], 4 513; CHECK-NEXT: [[DOTSPLATINSERT13:%.*]] = insertelement <4 x i8> poison, i8 [[TMP9]], i64 0 514; CHECK-NEXT: [[DOTSPLAT14:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT13]], <4 x i8> poison, <4 x i32> zeroinitializer 515; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 516; CHECK: vec.epilog.vector.body: 517; CHECK-NEXT: [[INDEX7:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT18:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 518; CHECK-NEXT: [[VEC_IND15:%.*]] = phi <4 x i8> [ [[INDUCTION12]], [[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT16:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 519; CHECK-NEXT: [[OFFSET_IDX17:%.*]] = add i64 1, [[INDEX7]] 520; CHECK-NEXT: [[TMP10:%.*]] = add i64 [[OFFSET_IDX17]], 0 521; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 [[TMP10]] 522; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0 523; CHECK-NEXT: store <4 x i8> [[VEC_IND15]], ptr [[TMP12]], align 1 524; CHECK-NEXT: [[INDEX_NEXT18]] = add nuw i64 [[INDEX7]], 4 525; CHECK-NEXT: [[VEC_IND_NEXT16]] = add <4 x i8> [[VEC_IND15]], [[DOTSPLAT14]] 526; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT18]], 84 527; CHECK-NEXT: br i1 [[TMP13]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]] 528; CHECK: vec.epilog.middle.block: 529; CHECK-NEXT: br i1 true, label [[OUTER_LATCH]], label [[VEC_EPILOG_SCALAR_PH]] 530; CHECK: vec.epilog.scalar.ph: 531; CHECK-NEXT: [[BC_RESUME_VAL3:%.*]] = phi i64 [ 85, [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 1, [[ITER_CHECK]] ], [ 85, [[VEC_EPILOG_ITER_CHECK]] ] 532; CHECK-NEXT: [[BC_RESUME_VAL6:%.*]] = phi i8 [ [[IND_END4]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[IND_END5]], [[VEC_EPILOG_ITER_CHECK]] ] 533; CHECK-NEXT: br label [[INNER:%.*]] 534; CHECK: inner: 535; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL3]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[INNER]] ] 536; CHECK-NEXT: [[IV_2:%.*]] = phi i8 [ [[BC_RESUME_VAL6]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_2_NEXT:%.*]], [[INNER]] ] 537; CHECK-NEXT: [[IV_2_NEXT]] = sub i8 [[IV_2]], [[TRUNC_ADD]] 538; CHECK-NEXT: [[GEP_DST:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 [[IV]] 539; CHECK-NEXT: store i8 [[IV_2]], ptr [[GEP_DST]], align 1 540; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 541; CHECK-NEXT: [[EC:%.*]] = icmp ugt i64 [[IV]], 83 542; CHECK-NEXT: br i1 [[EC]], label [[OUTER_LATCH]], label [[INNER]], !llvm.loop [[LOOP13:![0-9]+]] 543; CHECK: outer.latch: 544; CHECK-NEXT: [[OUTER_IV_NEXT]] = add nuw nsw i64 [[OUTER_IV]], 1 545; CHECK-NEXT: [[INDVAR_NEXT]] = add i8 [[INDVAR]], 1 546; CHECK-NEXT: [[INDUCTION_IV_NEXT]] = add i8 [[INDUCTION_IV]], [[TMP1]] 547; CHECK-NEXT: br label [[ITER_CHECK]] 548; 549; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @induction_resume_value_requires_non_trivial_scev_expansion( 550; CHECK-PROFITABLE-BY-DEFAULT-NEXT: entry: 551; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[ITER_CHECK:%.*]] 552; CHECK-PROFITABLE-BY-DEFAULT: iter.check: 553; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDUCTION_IV:%.*]] = phi i8 [ [[INDUCTION_IV_NEXT:%.*]], [[OUTER_LATCH:%.*]] ], [ -56, [[ENTRY:%.*]] ] 554; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVAR:%.*]] = phi i8 [ [[INDVAR_NEXT:%.*]], [[OUTER_LATCH]] ], [ 0, [[ENTRY]] ] 555; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[OUTER_IV:%.*]] = phi i64 [ 2, [[ENTRY]] ], [ [[OUTER_IV_NEXT:%.*]], [[OUTER_LATCH]] ] 556; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[P2:%.*]] = phi i32 [ -202, [[ENTRY]] ], [ [[ADD:%.*]], [[OUTER_LATCH]] ] 557; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = mul i8 [[INDVAR]], -1 558; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = add i8 [[TMP0]], -3 559; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TRUNC_IV:%.*]] = trunc i64 [[OUTER_IV]] to i32 560; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ADD]] = add i32 [[P2]], [[TRUNC_IV]] 561; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TRUNC_ADD:%.*]] = trunc i32 [[ADD]] to i8 562; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 false, label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 563; CHECK-PROFITABLE-BY-DEFAULT: vector.main.loop.iter.check: 564; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 false, label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 565; CHECK-PROFITABLE-BY-DEFAULT: vector.ph: 566; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IND_END:%.*]] = mul i8 84, [[INDUCTION_IV]] 567; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i8> poison, i8 [[INDUCTION_IV]], i64 0 568; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT]], <4 x i8> poison, <4 x i32> zeroinitializer 569; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP2:%.*]] = mul <4 x i8> <i8 0, i8 1, i8 2, i8 3>, [[DOTSPLAT]] 570; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDUCTION:%.*]] = add <4 x i8> zeroinitializer, [[TMP2]] 571; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP3:%.*]] = mul i8 [[INDUCTION_IV]], 4 572; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLATINSERT1:%.*]] = insertelement <4 x i8> poison, i8 [[TMP3]], i64 0 573; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLAT2:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT1]], <4 x i8> poison, <4 x i32> zeroinitializer 574; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VECTOR_BODY:%.*]] 575; CHECK-PROFITABLE-BY-DEFAULT: vector.body: 576; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 577; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND:%.*]] = phi <4 x i8> [ [[INDUCTION]], [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ] 578; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[OFFSET_IDX:%.*]] = add i64 1, [[INDEX]] 579; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0 580; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[DST:%.*]], i64 [[TMP4]] 581; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 0 582; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <4 x i8> [[VEC_IND]], ptr [[TMP6]], align 1 583; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 584; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND_NEXT]] = add <4 x i8> [[VEC_IND]], [[DOTSPLAT2]] 585; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], 84 586; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] 587; CHECK-PROFITABLE-BY-DEFAULT: middle.block: 588; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 true, label [[OUTER_LATCH]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 589; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.iter.check: 590; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IND_END5:%.*]] = mul i8 84, [[INDUCTION_IV]] 591; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 true, label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 592; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.ph: 593; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ 84, [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 594; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 595; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IND_END4:%.*]] = mul i8 84, [[INDUCTION_IV]] 596; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLATINSERT8:%.*]] = insertelement <2 x i8> poison, i8 [[BC_RESUME_VAL]], i64 0 597; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLAT9:%.*]] = shufflevector <2 x i8> [[DOTSPLATINSERT8]], <2 x i8> poison, <2 x i32> zeroinitializer 598; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLATINSERT10:%.*]] = insertelement <2 x i8> poison, i8 [[INDUCTION_IV]], i64 0 599; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLAT11:%.*]] = shufflevector <2 x i8> [[DOTSPLATINSERT10]], <2 x i8> poison, <2 x i32> zeroinitializer 600; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP8:%.*]] = mul <2 x i8> <i8 0, i8 1>, [[DOTSPLAT11]] 601; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDUCTION12:%.*]] = add <2 x i8> [[DOTSPLAT9]], [[TMP8]] 602; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP9:%.*]] = mul i8 [[INDUCTION_IV]], 2 603; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLATINSERT13:%.*]] = insertelement <2 x i8> poison, i8 [[TMP9]], i64 0 604; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLAT14:%.*]] = shufflevector <2 x i8> [[DOTSPLATINSERT13]], <2 x i8> poison, <2 x i32> zeroinitializer 605; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 606; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.vector.body: 607; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX7:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT18:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 608; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND15:%.*]] = phi <2 x i8> [ [[INDUCTION12]], [[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT16:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 609; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[OFFSET_IDX17:%.*]] = add i64 1, [[INDEX7]] 610; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP10:%.*]] = add i64 [[OFFSET_IDX17]], 0 611; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 [[TMP10]] 612; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0 613; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <2 x i8> [[VEC_IND15]], ptr [[TMP12]], align 1 614; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT18]] = add nuw i64 [[INDEX7]], 2 615; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND_NEXT16]] = add <2 x i8> [[VEC_IND15]], [[DOTSPLAT14]] 616; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT18]], 84 617; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP13]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] 618; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.middle.block: 619; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 true, label [[OUTER_LATCH]], label [[VEC_EPILOG_SCALAR_PH]] 620; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.scalar.ph: 621; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[BC_RESUME_VAL3:%.*]] = phi i64 [ 85, [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 1, [[ITER_CHECK]] ], [ 85, [[VEC_EPILOG_ITER_CHECK]] ] 622; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[BC_RESUME_VAL6:%.*]] = phi i8 [ [[IND_END4]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[IND_END5]], [[VEC_EPILOG_ITER_CHECK]] ] 623; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[INNER:%.*]] 624; CHECK-PROFITABLE-BY-DEFAULT: inner: 625; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL3]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[INNER]] ] 626; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_2:%.*]] = phi i8 [ [[BC_RESUME_VAL6]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_2_NEXT:%.*]], [[INNER]] ] 627; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_2_NEXT]] = sub i8 [[IV_2]], [[TRUNC_ADD]] 628; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[GEP_DST:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 [[IV]] 629; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store i8 [[IV_2]], ptr [[GEP_DST]], align 1 630; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 631; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EC:%.*]] = icmp ugt i64 [[IV]], 83 632; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EC]], label [[OUTER_LATCH]], label [[INNER]], !llvm.loop [[LOOP7:![0-9]+]] 633; CHECK-PROFITABLE-BY-DEFAULT: outer.latch: 634; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[OUTER_IV_NEXT]] = add nuw nsw i64 [[OUTER_IV]], 1 635; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVAR_NEXT]] = add i8 [[INDVAR]], 1 636; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDUCTION_IV_NEXT]] = add i8 [[INDUCTION_IV]], [[TMP1]] 637; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[ITER_CHECK]] 638; 639entry: 640 br label %outer.header 641 642outer.header: 643 %outer.iv = phi i64 [ 2, %entry ], [ %outer.iv.next, %outer.latch ] 644 %p2 = phi i32 [ -202, %entry ], [ %add, %outer.latch ] 645 %trunc.iv = trunc i64 %outer.iv to i32 646 %add = add i32 %p2, %trunc.iv 647 %trunc.add = trunc i32 %add to i8 648 br label %inner 649 650inner: 651 %iv = phi i64 [ 1, %outer.header ], [ %iv.next, %inner ] 652 %iv.2 = phi i8 [ 0, %outer.header ], [ %iv.2.next, %inner ] 653 %iv.2.next = sub i8 %iv.2, %trunc.add 654 %gep.dst = getelementptr inbounds i8, ptr %dst, i64 %iv 655 store i8 %iv.2, ptr %gep.dst 656 %iv.next = add nuw nsw i64 %iv, 1 657 %ec = icmp ugt i64 %iv, 83 658 br i1 %ec, label %outer.latch, label %inner 659 660outer.latch: 661 %outer.iv.next = add nuw nsw i64 %outer.iv, 1 662 br label %outer.header 663} 664 665; Check handling of widened/truncated inductions. 666define void @f4(ptr noalias %A, i32 signext %n) { 667; CHECK-LABEL: @f4( 668; CHECK-NEXT: iter.check: 669; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N:%.*]] to i64 670; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4 671; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 672; CHECK: vector.main.loop.iter.check: 673; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4 674; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 675; CHECK: vector.ph: 676; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4 677; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF]] 678; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 679; CHECK: vector.body: 680; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 681; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ] 682; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 683; CHECK-NEXT: [[TMP1:%.*]] = trunc <4 x i32> [[VEC_IND]] to <4 x i8> 684; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[TMP0]] 685; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0 686; CHECK-NEXT: store <4 x i8> [[TMP1]], ptr [[TMP3]], align 1 687; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 688; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 4) 689; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 690; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]] 691; CHECK: middle.block: 692; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]] 693; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 694; CHECK: vec.epilog.iter.check: 695; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_VEC]] 696; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 4 697; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 698; CHECK: vec.epilog.ph: 699; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 700; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4 701; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF2]] 702; CHECK-NEXT: [[TMP5:%.*]] = trunc i64 [[VEC_EPILOG_RESUME_VAL]] to i32 703; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i32> poison, i32 [[TMP5]], i64 0 704; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i32> [[DOTSPLATINSERT]], <4 x i32> poison, <4 x i32> zeroinitializer 705; CHECK-NEXT: [[INDUCTION:%.*]] = add <4 x i32> [[DOTSPLAT]], <i32 0, i32 1, i32 2, i32 3> 706; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 707; CHECK: vec.epilog.vector.body: 708; CHECK-NEXT: [[INDEX6:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT9:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 709; CHECK-NEXT: [[VEC_IND7:%.*]] = phi <4 x i32> [ [[INDUCTION]], [[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT8:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 710; CHECK-NEXT: [[TMP6:%.*]] = add i64 [[INDEX6]], 0 711; CHECK-NEXT: [[TMP7:%.*]] = trunc <4 x i32> [[VEC_IND7]] to <4 x i8> 712; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]] 713; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i32 0 714; CHECK-NEXT: store <4 x i8> [[TMP7]], ptr [[TMP9]], align 1 715; CHECK-NEXT: [[INDEX_NEXT9]] = add nuw i64 [[INDEX6]], 4 716; CHECK-NEXT: [[VEC_IND_NEXT8]] = add <4 x i32> [[VEC_IND7]], splat (i32 4) 717; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT9]], [[N_VEC3]] 718; CHECK-NEXT: br i1 [[TMP10]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]] 719; CHECK: vec.epilog.middle.block: 720; CHECK-NEXT: [[CMP_N5:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC3]] 721; CHECK-NEXT: br i1 [[CMP_N5]], label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] 722; CHECK: vec.epilog.scalar.ph: 723; CHECK-NEXT: [[BC_RESUME_VAL4:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK:%.*]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ] 724; CHECK-NEXT: br label [[LOOP:%.*]] 725; CHECK: loop: 726; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL4]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] 727; CHECK-NEXT: [[TMP11:%.*]] = trunc i64 [[IV]] to i32 728; CHECK-NEXT: [[CONV:%.*]] = trunc i32 [[TMP11]] to i8 729; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]] 730; CHECK-NEXT: store i8 [[CONV]], ptr [[ARRAYIDX]], align 1 731; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 732; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[IV_NEXT]], [[WIDE_TRIP_COUNT]] 733; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP16:![0-9]+]] 734; CHECK: exit: 735; CHECK-NEXT: ret void 736; 737; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @f4( 738; CHECK-PROFITABLE-BY-DEFAULT-NEXT: iter.check: 739; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N:%.*]] to i64 740; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 2 741; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 742; CHECK-PROFITABLE-BY-DEFAULT: vector.main.loop.iter.check: 743; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4 744; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 745; CHECK-PROFITABLE-BY-DEFAULT: vector.ph: 746; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4 747; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF]] 748; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VECTOR_BODY:%.*]] 749; CHECK-PROFITABLE-BY-DEFAULT: vector.body: 750; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 751; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ] 752; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 753; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = trunc <4 x i32> [[VEC_IND]] to <4 x i8> 754; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[TMP0]] 755; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0 756; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <4 x i8> [[TMP1]], ptr [[TMP3]], align 1 757; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 758; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 4) 759; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 760; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]] 761; CHECK-PROFITABLE-BY-DEFAULT: middle.block: 762; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]] 763; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 764; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.iter.check: 765; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_VEC]] 766; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 2 767; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 768; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.ph: 769; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 770; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 2 771; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC3:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF2]] 772; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP5:%.*]] = trunc i64 [[VEC_EPILOG_RESUME_VAL]] to i32 773; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <2 x i32> poison, i32 [[TMP5]], i64 0 774; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLAT:%.*]] = shufflevector <2 x i32> [[DOTSPLATINSERT]], <2 x i32> poison, <2 x i32> zeroinitializer 775; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDUCTION:%.*]] = add <2 x i32> [[DOTSPLAT]], <i32 0, i32 1> 776; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 777; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.vector.body: 778; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX6:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT9:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 779; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND7:%.*]] = phi <2 x i32> [ [[INDUCTION]], [[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT8:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 780; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP6:%.*]] = add i64 [[INDEX6]], 0 781; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP7:%.*]] = trunc <2 x i32> [[VEC_IND7]] to <2 x i8> 782; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]] 783; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP9:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i32 0 784; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <2 x i8> [[TMP7]], ptr [[TMP9]], align 1 785; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT9]] = add nuw i64 [[INDEX6]], 2 786; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND_NEXT8]] = add <2 x i32> [[VEC_IND7]], splat (i32 2) 787; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT9]], [[N_VEC3]] 788; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP10]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]] 789; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.middle.block: 790; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP_N5:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC3]] 791; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP_N5]], label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] 792; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.scalar.ph: 793; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[BC_RESUME_VAL4:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK:%.*]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ] 794; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[LOOP:%.*]] 795; CHECK-PROFITABLE-BY-DEFAULT: loop: 796; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL4]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] 797; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP11:%.*]] = trunc i64 [[IV]] to i32 798; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CONV:%.*]] = trunc i32 [[TMP11]] to i8 799; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]] 800; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store i8 [[CONV]], ptr [[ARRAYIDX]], align 1 801; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 802; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[IV_NEXT]], [[WIDE_TRIP_COUNT]] 803; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP10:![0-9]+]] 804; CHECK-PROFITABLE-BY-DEFAULT: exit: 805; CHECK-PROFITABLE-BY-DEFAULT-NEXT: ret void 806; 807entry: 808 %wide.trip.count = zext i32 %n to i64 809 br label %loop 810 811loop: 812 %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] 813 %0 = trunc i64 %iv to i32 814 %conv = trunc i32 %0 to i8 815 %arrayidx = getelementptr inbounds i8, ptr %A, i64 %iv 816 store i8 %conv, ptr %arrayidx, align 1 817 %iv.next = add nuw nsw i64 %iv, 1 818 %exitcond = icmp ne i64 %iv.next, %wide.trip.count 819 br i1 %exitcond, label %loop, label %exit 820 821exit: 822 ret void 823} 824 825define void @multiple_ivs_wide(ptr %dst) { 826; CHECK-LABEL: @multiple_ivs_wide( 827; CHECK-NEXT: iter.check: 828; CHECK-NEXT: br i1 false, label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] 829; CHECK: vector.main.loop.iter.check: 830; CHECK-NEXT: br i1 false, label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] 831; CHECK: vector.ph: 832; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 833; CHECK: vector.body: 834; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 835; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 -64, i32 -62, i32 -60, i32 -58>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ] 836; CHECK-NEXT: [[TMP0:%.*]] = mul i32 [[INDEX]], 2 837; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[TMP0]], 0 838; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[TMP0]], 2 839; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[TMP0]], 4 840; CHECK-NEXT: [[TMP4:%.*]] = add i32 [[TMP0]], 6 841; CHECK-NEXT: [[TMP5:%.*]] = add <4 x i32> [[VEC_IND]], splat (i32 2) 842; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, ptr [[DST:%.*]], i32 [[TMP1]] 843; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[TMP2]] 844; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[TMP3]] 845; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[TMP4]] 846; CHECK-NEXT: [[TMP10:%.*]] = extractelement <4 x i32> [[TMP5]], i32 0 847; CHECK-NEXT: store i32 [[TMP10]], ptr [[TMP6]], align 4 848; CHECK-NEXT: [[TMP11:%.*]] = extractelement <4 x i32> [[TMP5]], i32 1 849; CHECK-NEXT: store i32 [[TMP11]], ptr [[TMP7]], align 4 850; CHECK-NEXT: [[TMP12:%.*]] = extractelement <4 x i32> [[TMP5]], i32 2 851; CHECK-NEXT: store i32 [[TMP12]], ptr [[TMP8]], align 4 852; CHECK-NEXT: [[TMP13:%.*]] = extractelement <4 x i32> [[TMP5]], i32 3 853; CHECK-NEXT: store i32 [[TMP13]], ptr [[TMP9]], align 4 854; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4 855; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 8) 856; CHECK-NEXT: [[TMP14:%.*]] = icmp eq i32 [[INDEX_NEXT]], 64 857; CHECK-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]] 858; CHECK: middle.block: 859; CHECK-NEXT: br i1 true, label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] 860; CHECK: vec.epilog.iter.check: 861; CHECK-NEXT: br i1 true, label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] 862; CHECK: vec.epilog.ph: 863; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i32 [ 64, [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 864; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 64, [[VEC_EPILOG_ITER_CHECK]] ], [ -64, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] 865; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i32> poison, i32 [[BC_RESUME_VAL]], i64 0 866; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i32> [[DOTSPLATINSERT]], <4 x i32> poison, <4 x i32> zeroinitializer 867; CHECK-NEXT: [[INDUCTION:%.*]] = add <4 x i32> [[DOTSPLAT]], <i32 0, i32 2, i32 4, i32 6> 868; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] 869; CHECK: vec.epilog.vector.body: 870; CHECK-NEXT: [[INDEX1:%.*]] = phi i32 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT4:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 871; CHECK-NEXT: [[VEC_IND2:%.*]] = phi <4 x i32> [ [[INDUCTION]], [[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT3:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] 872; CHECK-NEXT: [[OFFSET_IDX:%.*]] = mul i32 [[INDEX1]], 2 873; CHECK-NEXT: [[TMP15:%.*]] = add i32 [[OFFSET_IDX]], 0 874; CHECK-NEXT: [[TMP16:%.*]] = add i32 [[OFFSET_IDX]], 2 875; CHECK-NEXT: [[TMP17:%.*]] = add i32 [[OFFSET_IDX]], 4 876; CHECK-NEXT: [[TMP18:%.*]] = add i32 [[OFFSET_IDX]], 6 877; CHECK-NEXT: [[TMP19:%.*]] = add <4 x i32> [[VEC_IND2]], splat (i32 2) 878; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[TMP15]] 879; CHECK-NEXT: [[TMP21:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[TMP16]] 880; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[TMP17]] 881; CHECK-NEXT: [[TMP23:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[TMP18]] 882; CHECK-NEXT: [[TMP24:%.*]] = extractelement <4 x i32> [[TMP19]], i32 0 883; CHECK-NEXT: store i32 [[TMP24]], ptr [[TMP20]], align 4 884; CHECK-NEXT: [[TMP25:%.*]] = extractelement <4 x i32> [[TMP19]], i32 1 885; CHECK-NEXT: store i32 [[TMP25]], ptr [[TMP21]], align 4 886; CHECK-NEXT: [[TMP26:%.*]] = extractelement <4 x i32> [[TMP19]], i32 2 887; CHECK-NEXT: store i32 [[TMP26]], ptr [[TMP22]], align 4 888; CHECK-NEXT: [[TMP27:%.*]] = extractelement <4 x i32> [[TMP19]], i32 3 889; CHECK-NEXT: store i32 [[TMP27]], ptr [[TMP23]], align 4 890; CHECK-NEXT: [[INDEX_NEXT4]] = add nuw i32 [[INDEX1]], 4 891; CHECK-NEXT: [[VEC_IND_NEXT3]] = add <4 x i32> [[VEC_IND2]], splat (i32 8) 892; CHECK-NEXT: [[TMP28:%.*]] = icmp eq i32 [[INDEX_NEXT4]], 64 893; CHECK-NEXT: br i1 [[TMP28]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]] 894; CHECK: vec.epilog.middle.block: 895; CHECK-NEXT: br i1 true, label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] 896; CHECK: vec.epilog.scalar.ph: 897; CHECK-NEXT: [[BC_RESUME_VAL5:%.*]] = phi i32 [ 128, [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK:%.*]] ], [ 128, [[VEC_EPILOG_ITER_CHECK]] ] 898; CHECK-NEXT: [[BC_RESUME_VAL6:%.*]] = phi i32 [ 64, [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ -64, [[ITER_CHECK]] ], [ 64, [[VEC_EPILOG_ITER_CHECK]] ] 899; CHECK-NEXT: br label [[LOOP:%.*]] 900; CHECK: loop: 901; CHECK-NEXT: [[IV:%.*]] = phi i32 [ [[BC_RESUME_VAL5]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] 902; CHECK-NEXT: [[IV_2:%.*]] = phi i32 [ [[BC_RESUME_VAL6]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_2_NEXT:%.*]], [[LOOP]] ] 903; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 2 904; CHECK-NEXT: [[IV_2_NEXT]] = add i32 [[IV_2]], 2 905; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[IV]] 906; CHECK-NEXT: store i32 [[IV_2_NEXT]], ptr [[GEP]], align 4 907; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV_NEXT]], 128 908; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP19:![0-9]+]] 909; CHECK: exit: 910; CHECK-NEXT: ret void 911; 912; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @multiple_ivs_wide( 913; CHECK-PROFITABLE-BY-DEFAULT-NEXT: entry: 914; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[LOOP:%.*]] 915; CHECK-PROFITABLE-BY-DEFAULT: loop: 916; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] 917; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_2:%.*]] = phi i32 [ -64, [[ENTRY]] ], [ [[IV_2_NEXT:%.*]], [[LOOP]] ] 918; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_NEXT]] = add i32 [[IV]], 2 919; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_2_NEXT]] = add i32 [[IV_2]], 2 920; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr [[DST:%.*]], i32 [[IV]] 921; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store i32 [[IV_2_NEXT]], ptr [[GEP]], align 4 922; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EC:%.*]] = icmp eq i32 [[IV_NEXT]], 128 923; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EC]], label [[EXIT:%.*]], label [[LOOP]] 924; CHECK-PROFITABLE-BY-DEFAULT: exit: 925; CHECK-PROFITABLE-BY-DEFAULT-NEXT: ret void 926; 927entry: 928 br label %loop 929 930loop: 931 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] 932 %iv.2 = phi i32 [ -64, %entry ], [ %iv.2.next, %loop ] 933 %iv.next = add i32 %iv, 2 934 %iv.2.next = add i32 %iv.2, 2 935 %gep = getelementptr inbounds i32, ptr %dst, i32 %iv 936 store i32 %iv.2.next, ptr %gep, align 4 937 %ec = icmp eq i32 %iv.next, 128 938 br i1 %ec, label %exit, label %loop 939 940exit: ; preds = %loop 941 ret void 942} 943