1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; This test verifies that the loop vectorizer will NOT vectorize loops that 3; will produce a tail loop with the optimize for size or the minimize size 4; attributes. This is a target-dependent version of the test. 5; RUN: opt < %s -passes=loop-vectorize -force-vector-width=64 -S -mtriple=x86_64-unknown-linux -mcpu=skx | FileCheck %s 6; RUN: opt < %s -passes=loop-vectorize -S -mtriple=x86_64-unknown-linux -mcpu=skx | FileCheck %s --check-prefix AUTOVF 7 8target datalayout = "E-m:e-p:32:32-i64:32-f64:32:64-a:0:32-n32-S128" 9 10@tab = common global [32 x i8] zeroinitializer, align 1 11 12define i32 @foo_optsize() #0 { 13; CHECK-LABEL: @foo_optsize( 14; CHECK-NEXT: entry: 15; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 16; CHECK: vector.ph: 17; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 18; CHECK: vector.body: 19; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 20; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[INDEX]], 0 21; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <64 x i32> poison, i32 [[INDEX]], i64 0 22; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <64 x i32> [[BROADCAST_SPLATINSERT]], <64 x i32> poison, <64 x i32> zeroinitializer 23; CHECK-NEXT: [[VEC_IV:%.*]] = add <64 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31, i32 32, i32 33, i32 34, i32 35, i32 36, i32 37, i32 38, i32 39, i32 40, i32 41, i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48, i32 49, i32 50, i32 51, i32 52, i32 53, i32 54, i32 55, i32 56, i32 57, i32 58, i32 59, i32 60, i32 61, i32 62, i32 63> 24; CHECK-NEXT: [[TMP1:%.*]] = icmp ule <64 x i32> [[VEC_IV]], splat (i32 202) 25; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 [[TMP0]] 26; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0 27; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <64 x i8> @llvm.masked.load.v64i8.p0(ptr [[TMP3]], i32 1, <64 x i1> [[TMP1]], <64 x i8> poison) 28; CHECK-NEXT: [[TMP4:%.*]] = icmp eq <64 x i8> [[WIDE_MASKED_LOAD]], zeroinitializer 29; CHECK-NEXT: [[TMP5:%.*]] = select <64 x i1> [[TMP4]], <64 x i8> splat (i8 2), <64 x i8> splat (i8 1) 30; CHECK-NEXT: call void @llvm.masked.store.v64i8.p0(<64 x i8> [[TMP5]], ptr [[TMP3]], i32 1, <64 x i1> [[TMP1]]) 31; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 64 32; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 33; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 34; CHECK: middle.block: 35; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] 36; CHECK: scalar.ph: 37; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 256, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 38; CHECK-NEXT: br label [[FOR_BODY:%.*]] 39; CHECK: for.body: 40; CHECK-NEXT: [[I_08:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 41; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 [[I_08]] 42; CHECK-NEXT: [[TMP7:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 43; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i8 [[TMP7]], 0 44; CHECK-NEXT: [[DOT:%.*]] = select i1 [[CMP1]], i8 2, i8 1 45; CHECK-NEXT: store i8 [[DOT]], ptr [[ARRAYIDX]], align 1 46; CHECK-NEXT: [[INC]] = add nsw i32 [[I_08]], 1 47; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[I_08]], 202 48; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 49; CHECK: for.end: 50; CHECK-NEXT: ret i32 0 51; 52; AUTOVF-LABEL: @foo_optsize( 53; AUTOVF-NEXT: entry: 54; AUTOVF-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 55; AUTOVF: vector.ph: 56; AUTOVF-NEXT: br label [[VECTOR_BODY:%.*]] 57; AUTOVF: vector.body: 58; AUTOVF-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 59; AUTOVF-NEXT: [[TMP0:%.*]] = add i32 [[INDEX]], 0 60; AUTOVF-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <32 x i32> poison, i32 [[INDEX]], i64 0 61; AUTOVF-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <32 x i32> [[BROADCAST_SPLATINSERT]], <32 x i32> poison, <32 x i32> zeroinitializer 62; AUTOVF-NEXT: [[VEC_IV:%.*]] = add <32 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31> 63; AUTOVF-NEXT: [[TMP1:%.*]] = icmp ule <32 x i32> [[VEC_IV]], splat (i32 202) 64; AUTOVF-NEXT: [[TMP2:%.*]] = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 [[TMP0]] 65; AUTOVF-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0 66; AUTOVF-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <32 x i8> @llvm.masked.load.v32i8.p0(ptr [[TMP3]], i32 1, <32 x i1> [[TMP1]], <32 x i8> poison) 67; AUTOVF-NEXT: [[TMP4:%.*]] = icmp eq <32 x i8> [[WIDE_MASKED_LOAD]], zeroinitializer 68; AUTOVF-NEXT: [[TMP5:%.*]] = select <32 x i1> [[TMP4]], <32 x i8> splat (i8 2), <32 x i8> splat (i8 1) 69; AUTOVF-NEXT: call void @llvm.masked.store.v32i8.p0(<32 x i8> [[TMP5]], ptr [[TMP3]], i32 1, <32 x i1> [[TMP1]]) 70; AUTOVF-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 32 71; AUTOVF-NEXT: [[TMP6:%.*]] = icmp eq i32 [[INDEX_NEXT]], 224 72; AUTOVF-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 73; AUTOVF: middle.block: 74; AUTOVF-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] 75; AUTOVF: scalar.ph: 76; AUTOVF-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 224, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 77; AUTOVF-NEXT: br label [[FOR_BODY:%.*]] 78; AUTOVF: for.body: 79; AUTOVF-NEXT: [[I_08:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 80; AUTOVF-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 [[I_08]] 81; AUTOVF-NEXT: [[TMP7:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 82; AUTOVF-NEXT: [[CMP1:%.*]] = icmp eq i8 [[TMP7]], 0 83; AUTOVF-NEXT: [[DOT:%.*]] = select i1 [[CMP1]], i8 2, i8 1 84; AUTOVF-NEXT: store i8 [[DOT]], ptr [[ARRAYIDX]], align 1 85; AUTOVF-NEXT: [[INC]] = add nsw i32 [[I_08]], 1 86; AUTOVF-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[I_08]], 202 87; AUTOVF-NEXT: br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 88; AUTOVF: for.end: 89; AUTOVF-NEXT: ret i32 0 90; 91 92entry: 93 br label %for.body 94 95for.body: ; preds = %for.body, %entry 96 %i.08 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 97 %arrayidx = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 %i.08 98 %0 = load i8, ptr %arrayidx, align 1 99 %cmp1 = icmp eq i8 %0, 0 100 %. = select i1 %cmp1, i8 2, i8 1 101 store i8 %., ptr %arrayidx, align 1 102 %inc = add nsw i32 %i.08, 1 103 %exitcond = icmp eq i32 %i.08, 202 104 br i1 %exitcond, label %for.end, label %for.body 105 106for.end: ; preds = %for.body 107 ret i32 0 108} 109 110attributes #0 = { optsize } 111 112define i32 @foo_minsize() #1 { 113; CHECK-LABEL: @foo_minsize( 114; CHECK-NEXT: entry: 115; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 116; CHECK: vector.ph: 117; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 118; CHECK: vector.body: 119; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 120; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[INDEX]], 0 121; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <64 x i32> poison, i32 [[INDEX]], i64 0 122; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <64 x i32> [[BROADCAST_SPLATINSERT]], <64 x i32> poison, <64 x i32> zeroinitializer 123; CHECK-NEXT: [[VEC_IV:%.*]] = add <64 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31, i32 32, i32 33, i32 34, i32 35, i32 36, i32 37, i32 38, i32 39, i32 40, i32 41, i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48, i32 49, i32 50, i32 51, i32 52, i32 53, i32 54, i32 55, i32 56, i32 57, i32 58, i32 59, i32 60, i32 61, i32 62, i32 63> 124; CHECK-NEXT: [[TMP1:%.*]] = icmp ule <64 x i32> [[VEC_IV]], splat (i32 202) 125; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 [[TMP0]] 126; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0 127; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <64 x i8> @llvm.masked.load.v64i8.p0(ptr [[TMP3]], i32 1, <64 x i1> [[TMP1]], <64 x i8> poison) 128; CHECK-NEXT: [[TMP4:%.*]] = icmp eq <64 x i8> [[WIDE_MASKED_LOAD]], zeroinitializer 129; CHECK-NEXT: [[TMP5:%.*]] = select <64 x i1> [[TMP4]], <64 x i8> splat (i8 2), <64 x i8> splat (i8 1) 130; CHECK-NEXT: call void @llvm.masked.store.v64i8.p0(<64 x i8> [[TMP5]], ptr [[TMP3]], i32 1, <64 x i1> [[TMP1]]) 131; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 64 132; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 133; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] 134; CHECK: middle.block: 135; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] 136; CHECK: scalar.ph: 137; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 256, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 138; CHECK-NEXT: br label [[FOR_BODY:%.*]] 139; CHECK: for.body: 140; CHECK-NEXT: [[I_08:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 141; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 [[I_08]] 142; CHECK-NEXT: [[TMP7:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 143; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i8 [[TMP7]], 0 144; CHECK-NEXT: [[DOT:%.*]] = select i1 [[CMP1]], i8 2, i8 1 145; CHECK-NEXT: store i8 [[DOT]], ptr [[ARRAYIDX]], align 1 146; CHECK-NEXT: [[INC]] = add nsw i32 [[I_08]], 1 147; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[I_08]], 202 148; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] 149; CHECK: for.end: 150; CHECK-NEXT: ret i32 0 151; 152; AUTOVF-LABEL: @foo_minsize( 153; AUTOVF-NEXT: entry: 154; AUTOVF-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 155; AUTOVF: vector.ph: 156; AUTOVF-NEXT: br label [[VECTOR_BODY:%.*]] 157; AUTOVF: vector.body: 158; AUTOVF-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 159; AUTOVF-NEXT: [[TMP0:%.*]] = add i32 [[INDEX]], 0 160; AUTOVF-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <32 x i32> poison, i32 [[INDEX]], i64 0 161; AUTOVF-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <32 x i32> [[BROADCAST_SPLATINSERT]], <32 x i32> poison, <32 x i32> zeroinitializer 162; AUTOVF-NEXT: [[VEC_IV:%.*]] = add <32 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31> 163; AUTOVF-NEXT: [[TMP1:%.*]] = icmp ule <32 x i32> [[VEC_IV]], splat (i32 202) 164; AUTOVF-NEXT: [[TMP2:%.*]] = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 [[TMP0]] 165; AUTOVF-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0 166; AUTOVF-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <32 x i8> @llvm.masked.load.v32i8.p0(ptr [[TMP3]], i32 1, <32 x i1> [[TMP1]], <32 x i8> poison) 167; AUTOVF-NEXT: [[TMP4:%.*]] = icmp eq <32 x i8> [[WIDE_MASKED_LOAD]], zeroinitializer 168; AUTOVF-NEXT: [[TMP5:%.*]] = select <32 x i1> [[TMP4]], <32 x i8> splat (i8 2), <32 x i8> splat (i8 1) 169; AUTOVF-NEXT: call void @llvm.masked.store.v32i8.p0(<32 x i8> [[TMP5]], ptr [[TMP3]], i32 1, <32 x i1> [[TMP1]]) 170; AUTOVF-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 32 171; AUTOVF-NEXT: [[TMP6:%.*]] = icmp eq i32 [[INDEX_NEXT]], 224 172; AUTOVF-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] 173; AUTOVF: middle.block: 174; AUTOVF-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] 175; AUTOVF: scalar.ph: 176; AUTOVF-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 224, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 177; AUTOVF-NEXT: br label [[FOR_BODY:%.*]] 178; AUTOVF: for.body: 179; AUTOVF-NEXT: [[I_08:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 180; AUTOVF-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 [[I_08]] 181; AUTOVF-NEXT: [[TMP7:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 182; AUTOVF-NEXT: [[CMP1:%.*]] = icmp eq i8 [[TMP7]], 0 183; AUTOVF-NEXT: [[DOT:%.*]] = select i1 [[CMP1]], i8 2, i8 1 184; AUTOVF-NEXT: store i8 [[DOT]], ptr [[ARRAYIDX]], align 1 185; AUTOVF-NEXT: [[INC]] = add nsw i32 [[I_08]], 1 186; AUTOVF-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[I_08]], 202 187; AUTOVF-NEXT: br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] 188; AUTOVF: for.end: 189; AUTOVF-NEXT: ret i32 0 190; 191 192entry: 193 br label %for.body 194 195for.body: ; preds = %for.body, %entry 196 %i.08 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 197 %arrayidx = getelementptr inbounds [32 x i8], ptr @tab, i32 0, i32 %i.08 198 %0 = load i8, ptr %arrayidx, align 1 199 %cmp1 = icmp eq i8 %0, 0 200 %. = select i1 %cmp1, i8 2, i8 1 201 store i8 %., ptr %arrayidx, align 1 202 %inc = add nsw i32 %i.08, 1 203 %exitcond = icmp eq i32 %i.08, 202 204 br i1 %exitcond, label %for.end, label %for.body 205 206for.end: ; preds = %for.body 207 ret i32 0 208} 209 210attributes #1 = { minsize } 211 212 213; We can vectorize this one by refraining from versioning for stride==1. 214define void @scev4stride1(ptr noalias nocapture %a, ptr noalias nocapture readonly %b, i32 %k) #2 { 215; CHECK-LABEL: @scev4stride1( 216; CHECK-NEXT: for.body.preheader: 217; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 218; CHECK: vector.ph: 219; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <64 x i32> poison, i32 [[K:%.*]], i64 0 220; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <64 x i32> [[BROADCAST_SPLATINSERT]], <64 x i32> poison, <64 x i32> zeroinitializer 221; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 222; CHECK: vector.body: 223; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 224; CHECK-NEXT: [[VEC_IND:%.*]] = phi <64 x i32> [ <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31, i32 32, i32 33, i32 34, i32 35, i32 36, i32 37, i32 38, i32 39, i32 40, i32 41, i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48, i32 49, i32 50, i32 51, i32 52, i32 53, i32 54, i32 55, i32 56, i32 57, i32 58, i32 59, i32 60, i32 61, i32 62, i32 63>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ] 225; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[INDEX]], 0 226; CHECK-NEXT: [[TMP1:%.*]] = mul nsw <64 x i32> [[VEC_IND]], [[BROADCAST_SPLAT]] 227; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], <64 x i32> [[TMP1]] 228; CHECK-NEXT: [[WIDE_MASKED_GATHER:%.*]] = call <64 x i32> @llvm.masked.gather.v64i32.v64p0(<64 x ptr> [[TMP2]], i32 4, <64 x i1> splat (i1 true), <64 x i32> poison) 229; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i32 [[TMP0]] 230; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i32, ptr [[TMP3]], i32 0 231; CHECK-NEXT: store <64 x i32> [[WIDE_MASKED_GATHER]], ptr [[TMP4]], align 4 232; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 64 233; CHECK-NEXT: [[VEC_IND_NEXT]] = add <64 x i32> [[VEC_IND]], splat (i32 64) 234; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 235; CHECK-NEXT: br i1 [[TMP5]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] 236; CHECK: middle.block: 237; CHECK-NEXT: br i1 true, label [[FOR_END_LOOPEXIT:%.*]], label [[SCALAR_PH]] 238; CHECK: scalar.ph: 239; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 256, [[MIDDLE_BLOCK]] ], [ 0, [[FOR_BODY_PREHEADER:%.*]] ] 240; CHECK-NEXT: br label [[FOR_BODY:%.*]] 241; CHECK: for.body: 242; CHECK-NEXT: [[I_07:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] 243; CHECK-NEXT: [[MUL:%.*]] = mul nsw i32 [[I_07]], [[K]] 244; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[B]], i32 [[MUL]] 245; CHECK-NEXT: [[TMP6:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 246; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i32, ptr [[A]], i32 [[I_07]] 247; CHECK-NEXT: store i32 [[TMP6]], ptr [[ARRAYIDX1]], align 4 248; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_07]], 1 249; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[INC]], 256 250; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]] 251; CHECK: for.end.loopexit: 252; CHECK-NEXT: ret void 253; 254; AUTOVF-LABEL: @scev4stride1( 255; AUTOVF-NEXT: for.body.preheader: 256; AUTOVF-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 257; AUTOVF: vector.ph: 258; AUTOVF-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i32> poison, i32 [[K:%.*]], i64 0 259; AUTOVF-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i32> [[BROADCAST_SPLATINSERT]], <8 x i32> poison, <8 x i32> zeroinitializer 260; AUTOVF-NEXT: br label [[VECTOR_BODY:%.*]] 261; AUTOVF: vector.body: 262; AUTOVF-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 263; AUTOVF-NEXT: [[VEC_IND:%.*]] = phi <8 x i32> [ <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ] 264; AUTOVF-NEXT: [[TMP0:%.*]] = add i32 [[INDEX]], 0 265; AUTOVF-NEXT: [[TMP1:%.*]] = mul nsw <8 x i32> [[VEC_IND]], [[BROADCAST_SPLAT]] 266; AUTOVF-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], <8 x i32> [[TMP1]] 267; AUTOVF-NEXT: [[WIDE_MASKED_GATHER:%.*]] = call <8 x i32> @llvm.masked.gather.v8i32.v8p0(<8 x ptr> [[TMP2]], i32 4, <8 x i1> splat (i1 true), <8 x i32> poison) 268; AUTOVF-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i32 [[TMP0]] 269; AUTOVF-NEXT: [[TMP4:%.*]] = getelementptr inbounds i32, ptr [[TMP3]], i32 0 270; AUTOVF-NEXT: store <8 x i32> [[WIDE_MASKED_GATHER]], ptr [[TMP4]], align 4 271; AUTOVF-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 8 272; AUTOVF-NEXT: [[VEC_IND_NEXT]] = add <8 x i32> [[VEC_IND]], splat (i32 8) 273; AUTOVF-NEXT: [[TMP5:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 274; AUTOVF-NEXT: br i1 [[TMP5]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] 275; AUTOVF: middle.block: 276; AUTOVF-NEXT: br i1 true, label [[FOR_END_LOOPEXIT:%.*]], label [[SCALAR_PH]] 277; AUTOVF: scalar.ph: 278; AUTOVF-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 256, [[MIDDLE_BLOCK]] ], [ 0, [[FOR_BODY_PREHEADER:%.*]] ] 279; AUTOVF-NEXT: br label [[FOR_BODY:%.*]] 280; AUTOVF: for.body: 281; AUTOVF-NEXT: [[I_07:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] 282; AUTOVF-NEXT: [[MUL:%.*]] = mul nsw i32 [[I_07]], [[K]] 283; AUTOVF-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[B]], i32 [[MUL]] 284; AUTOVF-NEXT: [[TMP6:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 285; AUTOVF-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i32, ptr [[A]], i32 [[I_07]] 286; AUTOVF-NEXT: store i32 [[TMP6]], ptr [[ARRAYIDX1]], align 4 287; AUTOVF-NEXT: [[INC]] = add nuw nsw i32 [[I_07]], 1 288; AUTOVF-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[INC]], 256 289; AUTOVF-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]] 290; AUTOVF: for.end.loopexit: 291; AUTOVF-NEXT: ret void 292; 293for.body.preheader: 294 br label %for.body 295 296for.body: ; preds = %for.body.preheader, %for.body 297 %i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ] 298 %mul = mul nsw i32 %i.07, %k 299 %arrayidx = getelementptr inbounds i32, ptr %b, i32 %mul 300 %0 = load i32, ptr %arrayidx, align 4 301 %arrayidx1 = getelementptr inbounds i32, ptr %a, i32 %i.07 302 store i32 %0, ptr %arrayidx1, align 4 303 %inc = add nuw nsw i32 %i.07, 1 304 %exitcond = icmp eq i32 %inc, 256 305 br i1 %exitcond, label %for.end.loopexit, label %for.body 306 307for.end.loopexit: ; preds = %for.body 308 ret void 309} 310 311attributes #2 = { optsize } 312 313 314; PR39497 315; We can't vectorize this one because we version for overflow check and tiny 316; trip count leads to opt-for-size (which otherwise could fold the tail by 317; masking). 318define i32 @main() local_unnamed_addr { 319; CHECK-LABEL: @main( 320; CHECK-NEXT: while.cond: 321; CHECK-NEXT: br label [[FOR_COND:%.*]] 322; CHECK: for.cond: 323; CHECK-NEXT: [[D_0:%.*]] = phi i32 [ 0, [[WHILE_COND:%.*]] ], [ [[ADD:%.*]], [[FOR_COND]] ] 324; CHECK-NEXT: [[CONV:%.*]] = and i32 [[D_0]], 65535 325; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[CONV]], 4 326; CHECK-NEXT: [[ADD]] = add nuw nsw i32 [[CONV]], 1 327; CHECK-NEXT: br i1 [[CMP]], label [[FOR_COND]], label [[WHILE_COND_LOOPEXIT:%.*]] 328; CHECK: while.cond.loopexit: 329; CHECK-NEXT: ret i32 0 330; 331; AUTOVF-LABEL: @main( 332; AUTOVF-NEXT: while.cond: 333; AUTOVF-NEXT: br label [[FOR_COND:%.*]] 334; AUTOVF: for.cond: 335; AUTOVF-NEXT: [[D_0:%.*]] = phi i32 [ 0, [[WHILE_COND:%.*]] ], [ [[ADD:%.*]], [[FOR_COND]] ] 336; AUTOVF-NEXT: [[CONV:%.*]] = and i32 [[D_0]], 65535 337; AUTOVF-NEXT: [[CMP:%.*]] = icmp ult i32 [[CONV]], 4 338; AUTOVF-NEXT: [[ADD]] = add nuw nsw i32 [[CONV]], 1 339; AUTOVF-NEXT: br i1 [[CMP]], label [[FOR_COND]], label [[WHILE_COND_LOOPEXIT:%.*]] 340; AUTOVF: while.cond.loopexit: 341; AUTOVF-NEXT: ret i32 0 342; 343while.cond: 344 br label %for.cond 345 346for.cond: 347 %d.0 = phi i32 [ 0, %while.cond ], [ %add, %for.cond ] 348 %conv = and i32 %d.0, 65535 349 %cmp = icmp ult i32 %conv, 4 350 %add = add nuw nsw i32 %conv, 1 351 br i1 %cmp, label %for.cond, label %while.cond.loopexit 352 353while.cond.loopexit: 354 ret i32 0 355} 356 357define void @tail_folded_store_avx512(ptr %start, ptr %end) #3 { 358; CHECK-LABEL: @tail_folded_store_avx512( 359; CHECK-NEXT: entry: 360; CHECK-NEXT: [[END2:%.*]] = ptrtoint ptr [[END:%.*]] to i32 361; CHECK-NEXT: [[START1:%.*]] = ptrtoint ptr [[START:%.*]] to i32 362; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[START1]], -72 363; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[TMP0]], [[END2]] 364; CHECK-NEXT: [[TMP2:%.*]] = udiv i32 [[TMP1]], 72 365; CHECK-NEXT: [[TMP3:%.*]] = add nuw nsw i32 [[TMP2]], 1 366; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 367; CHECK: vector.ph: 368; CHECK-NEXT: [[N_RND_UP:%.*]] = add i32 [[TMP3]], 63 369; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[N_RND_UP]], 64 370; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[N_RND_UP]], [[N_MOD_VF]] 371; CHECK-NEXT: [[TRIP_COUNT_MINUS_1:%.*]] = sub i32 [[TMP3]], 1 372; CHECK-NEXT: [[TMP4:%.*]] = mul i32 [[N_VEC]], -72 373; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[START]], i32 [[TMP4]] 374; CHECK-NEXT: [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <64 x i32> poison, i32 [[TRIP_COUNT_MINUS_1]], i64 0 375; CHECK-NEXT: [[BROADCAST_SPLAT4:%.*]] = shufflevector <64 x i32> [[BROADCAST_SPLATINSERT3]], <64 x i32> poison, <64 x i32> zeroinitializer 376; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 377; CHECK: vector.body: 378; CHECK-NEXT: [[POINTER_PHI:%.*]] = phi ptr [ [[START]], [[VECTOR_PH]] ], [ [[PTR_IND:%.*]], [[VECTOR_BODY]] ] 379; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 380; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[POINTER_PHI]], <64 x i32> <i32 0, i32 -72, i32 -144, i32 -216, i32 -288, i32 -360, i32 -432, i32 -504, i32 -576, i32 -648, i32 -720, i32 -792, i32 -864, i32 -936, i32 -1008, i32 -1080, i32 -1152, i32 -1224, i32 -1296, i32 -1368, i32 -1440, i32 -1512, i32 -1584, i32 -1656, i32 -1728, i32 -1800, i32 -1872, i32 -1944, i32 -2016, i32 -2088, i32 -2160, i32 -2232, i32 -2304, i32 -2376, i32 -2448, i32 -2520, i32 -2592, i32 -2664, i32 -2736, i32 -2808, i32 -2880, i32 -2952, i32 -3024, i32 -3096, i32 -3168, i32 -3240, i32 -3312, i32 -3384, i32 -3456, i32 -3528, i32 -3600, i32 -3672, i32 -3744, i32 -3816, i32 -3888, i32 -3960, i32 -4032, i32 -4104, i32 -4176, i32 -4248, i32 -4320, i32 -4392, i32 -4464, i32 -4536> 381; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <64 x i32> poison, i32 [[INDEX]], i64 0 382; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <64 x i32> [[BROADCAST_SPLATINSERT]], <64 x i32> poison, <64 x i32> zeroinitializer 383; CHECK-NEXT: [[VEC_IV:%.*]] = add <64 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31, i32 32, i32 33, i32 34, i32 35, i32 36, i32 37, i32 38, i32 39, i32 40, i32 41, i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48, i32 49, i32 50, i32 51, i32 52, i32 53, i32 54, i32 55, i32 56, i32 57, i32 58, i32 59, i32 60, i32 61, i32 62, i32 63> 384; CHECK-NEXT: [[TMP6:%.*]] = icmp ule <64 x i32> [[VEC_IV]], [[BROADCAST_SPLAT4]] 385; CHECK-NEXT: call void @llvm.masked.scatter.v64p0.v64p0(<64 x ptr> zeroinitializer, <64 x ptr> [[TMP5]], i32 8, <64 x i1> [[TMP6]]) 386; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 64 387; CHECK-NEXT: [[PTR_IND]] = getelementptr i8, ptr [[POINTER_PHI]], i32 -4608 388; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]] 389; CHECK-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]] 390; CHECK: middle.block: 391; CHECK-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]] 392; CHECK: scalar.ph: 393; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[START]], [[ENTRY:%.*]] ] 394; CHECK-NEXT: br label [[LOOP:%.*]] 395; CHECK: loop: 396; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP]] ] 397; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr nusw i8, ptr [[PTR_IV]], i64 -72 398; CHECK-NEXT: store ptr null, ptr [[PTR_IV]], align 8 399; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV_NEXT]], [[END]] 400; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP9:![0-9]+]] 401; CHECK: exit: 402; CHECK-NEXT: ret void 403; 404; AUTOVF-LABEL: @tail_folded_store_avx512( 405; AUTOVF-NEXT: entry: 406; AUTOVF-NEXT: [[END2:%.*]] = ptrtoint ptr [[END:%.*]] to i32 407; AUTOVF-NEXT: [[START1:%.*]] = ptrtoint ptr [[START:%.*]] to i32 408; AUTOVF-NEXT: [[TMP0:%.*]] = add i32 [[START1]], -72 409; AUTOVF-NEXT: [[TMP1:%.*]] = sub i32 [[TMP0]], [[END2]] 410; AUTOVF-NEXT: [[TMP2:%.*]] = udiv i32 [[TMP1]], 72 411; AUTOVF-NEXT: [[TMP3:%.*]] = add nuw nsw i32 [[TMP2]], 1 412; AUTOVF-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 413; AUTOVF: vector.ph: 414; AUTOVF-NEXT: [[N_RND_UP:%.*]] = add i32 [[TMP3]], 7 415; AUTOVF-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[N_RND_UP]], 8 416; AUTOVF-NEXT: [[N_VEC:%.*]] = sub i32 [[N_RND_UP]], [[N_MOD_VF]] 417; AUTOVF-NEXT: [[TRIP_COUNT_MINUS_1:%.*]] = sub i32 [[TMP3]], 1 418; AUTOVF-NEXT: [[TMP4:%.*]] = mul i32 [[N_VEC]], -72 419; AUTOVF-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[START]], i32 [[TMP4]] 420; AUTOVF-NEXT: [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <8 x i32> poison, i32 [[TRIP_COUNT_MINUS_1]], i64 0 421; AUTOVF-NEXT: [[BROADCAST_SPLAT4:%.*]] = shufflevector <8 x i32> [[BROADCAST_SPLATINSERT3]], <8 x i32> poison, <8 x i32> zeroinitializer 422; AUTOVF-NEXT: br label [[VECTOR_BODY:%.*]] 423; AUTOVF: vector.body: 424; AUTOVF-NEXT: [[POINTER_PHI:%.*]] = phi ptr [ [[START]], [[VECTOR_PH]] ], [ [[PTR_IND:%.*]], [[VECTOR_BODY]] ] 425; AUTOVF-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 426; AUTOVF-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[POINTER_PHI]], <8 x i32> <i32 0, i32 -72, i32 -144, i32 -216, i32 -288, i32 -360, i32 -432, i32 -504> 427; AUTOVF-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i32> poison, i32 [[INDEX]], i64 0 428; AUTOVF-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i32> [[BROADCAST_SPLATINSERT]], <8 x i32> poison, <8 x i32> zeroinitializer 429; AUTOVF-NEXT: [[VEC_IV:%.*]] = add <8 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> 430; AUTOVF-NEXT: [[TMP6:%.*]] = icmp ule <8 x i32> [[VEC_IV]], [[BROADCAST_SPLAT4]] 431; AUTOVF-NEXT: call void @llvm.masked.scatter.v8p0.v8p0(<8 x ptr> zeroinitializer, <8 x ptr> [[TMP5]], i32 8, <8 x i1> [[TMP6]]) 432; AUTOVF-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 8 433; AUTOVF-NEXT: [[PTR_IND]] = getelementptr i8, ptr [[POINTER_PHI]], i32 -576 434; AUTOVF-NEXT: [[TMP7:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]] 435; AUTOVF-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]] 436; AUTOVF: middle.block: 437; AUTOVF-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]] 438; AUTOVF: scalar.ph: 439; AUTOVF-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[START]], [[ENTRY:%.*]] ] 440; AUTOVF-NEXT: br label [[LOOP:%.*]] 441; AUTOVF: loop: 442; AUTOVF-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP]] ] 443; AUTOVF-NEXT: [[PTR_IV_NEXT]] = getelementptr nusw i8, ptr [[PTR_IV]], i64 -72 444; AUTOVF-NEXT: store ptr null, ptr [[PTR_IV]], align 8 445; AUTOVF-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV_NEXT]], [[END]] 446; AUTOVF-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP9:![0-9]+]] 447; AUTOVF: exit: 448; AUTOVF-NEXT: ret void 449; 450entry: 451 br label %loop 452 453loop: 454 %ptr.iv = phi ptr [ %start, %entry ], [ %ptr.iv.next, %loop ] 455 %ptr.iv.next = getelementptr nusw i8, ptr %ptr.iv, i64 -72 456 store ptr null, ptr %ptr.iv, align 8 457 %ec = icmp eq ptr %ptr.iv.next, %end 458 br i1 %ec, label %exit, label %loop 459 460exit: 461 ret void 462} 463 464attributes #3 = { optsize "target-cpu"="skylake-avx512" } 465