1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -S -mtriple=x86_64-unknown -mattr=+avx -slp-vectorizer | FileCheck %s 3 4;void phiUsingLoads(int *restrict A, int *restrict B) { 5; int tmp0, tmp1, tmp2, tmp3; 6; for (int i = 0; i < 100; i++) { 7; if (A[0] == 0) { 8; tmp0 = A[i + 0]; 9; tmp1 = A[i + 1]; 10; tmp2 = A[i + 2]; 11; tmp3 = A[i + 3]; 12; } else if (A[25] == 0) { 13; tmp0 = A[i + 0]; 14; tmp1 = A[i + 1]; 15; tmp2 = A[i + 2]; 16; tmp3 = A[i + 3]; 17; } else if (A[50] == 0) { 18; tmp0 = A[i + 0]; 19; tmp1 = A[i + 1]; 20; tmp2 = A[i + 2]; 21; tmp3 = A[i + 3]; 22; } else if (A[75] == 0) { 23; tmp0 = A[i + 0]; 24; tmp1 = A[i + 1]; 25; tmp2 = A[i + 3]; 26; tmp3 = A[i + 2]; 27; } 28; } 29; B[0] = tmp0; 30; B[1] = tmp1; 31; B[2] = tmp2; 32; B[3] = tmp3; 33;} 34 35 36; Function Attrs: norecurse nounwind uwtable 37define void @phiUsingLoads(i32* noalias nocapture readonly %A, i32* noalias nocapture %B) local_unnamed_addr #0 { 38; CHECK-LABEL: @phiUsingLoads( 39; CHECK-NEXT: entry: 40; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[A:%.*]], align 4 41; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[TMP0]], 0 42; CHECK-NEXT: [[ARRAYIDX12:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 25 43; CHECK-NEXT: [[ARRAYIDX28:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 50 44; CHECK-NEXT: [[ARRAYIDX44:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 75 45; CHECK-NEXT: br label [[FOR_BODY:%.*]] 46; CHECK: for.cond.cleanup: 47; CHECK-NEXT: [[ARRAYIDX64:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 1 48; CHECK-NEXT: [[ARRAYIDX65:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 2 49; CHECK-NEXT: [[ARRAYIDX66:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 3 50; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[B]] to <4 x i32>* 51; CHECK-NEXT: store <4 x i32> [[TMP27:%.*]], <4 x i32>* [[TMP1]], align 4 52; CHECK-NEXT: ret void 53; CHECK: for.body: 54; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_INC:%.*]] ] 55; CHECK-NEXT: [[TMP2:%.*]] = phi <4 x i32> [ undef, [[ENTRY]] ], [ [[TMP27]], [[FOR_INC]] ] 56; CHECK-NEXT: br i1 [[CMP1]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]] 57; CHECK: if.then: 58; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]] 59; CHECK-NEXT: [[TMP3:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1 60; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP3]] 61; CHECK-NEXT: [[TMP4:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2 62; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP4]] 63; CHECK-NEXT: [[TMP5:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3 64; CHECK-NEXT: [[ARRAYIDX11:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP5]] 65; CHECK-NEXT: [[TMP6:%.*]] = bitcast i32* [[ARRAYIDX2]] to <4 x i32>* 66; CHECK-NEXT: [[TMP7:%.*]] = load <4 x i32>, <4 x i32>* [[TMP6]], align 4 67; CHECK-NEXT: br label [[FOR_INC]] 68; CHECK: if.else: 69; CHECK-NEXT: [[TMP8:%.*]] = load i32, i32* [[ARRAYIDX12]], align 4 70; CHECK-NEXT: [[CMP13:%.*]] = icmp eq i32 [[TMP8]], 0 71; CHECK-NEXT: br i1 [[CMP13]], label [[IF_THEN14:%.*]], label [[IF_ELSE27:%.*]] 72; CHECK: if.then14: 73; CHECK-NEXT: [[ARRAYIDX17:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]] 74; CHECK-NEXT: [[TMP9:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1 75; CHECK-NEXT: [[ARRAYIDX20:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP9]] 76; CHECK-NEXT: [[TMP10:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2 77; CHECK-NEXT: [[ARRAYIDX23:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP10]] 78; CHECK-NEXT: [[TMP11:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3 79; CHECK-NEXT: [[ARRAYIDX26:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP11]] 80; CHECK-NEXT: [[TMP12:%.*]] = bitcast i32* [[ARRAYIDX17]] to <4 x i32>* 81; CHECK-NEXT: [[TMP13:%.*]] = load <4 x i32>, <4 x i32>* [[TMP12]], align 4 82; CHECK-NEXT: br label [[FOR_INC]] 83; CHECK: if.else27: 84; CHECK-NEXT: [[TMP14:%.*]] = load i32, i32* [[ARRAYIDX28]], align 4 85; CHECK-NEXT: [[CMP29:%.*]] = icmp eq i32 [[TMP14]], 0 86; CHECK-NEXT: br i1 [[CMP29]], label [[IF_THEN30:%.*]], label [[IF_ELSE43:%.*]] 87; CHECK: if.then30: 88; CHECK-NEXT: [[ARRAYIDX33:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]] 89; CHECK-NEXT: [[TMP15:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1 90; CHECK-NEXT: [[ARRAYIDX36:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP15]] 91; CHECK-NEXT: [[TMP16:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2 92; CHECK-NEXT: [[ARRAYIDX39:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP16]] 93; CHECK-NEXT: [[TMP17:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3 94; CHECK-NEXT: [[ARRAYIDX42:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP17]] 95; CHECK-NEXT: [[TMP18:%.*]] = bitcast i32* [[ARRAYIDX33]] to <4 x i32>* 96; CHECK-NEXT: [[TMP19:%.*]] = load <4 x i32>, <4 x i32>* [[TMP18]], align 4 97; CHECK-NEXT: br label [[FOR_INC]] 98; CHECK: if.else43: 99; CHECK-NEXT: [[TMP20:%.*]] = load i32, i32* [[ARRAYIDX44]], align 4 100; CHECK-NEXT: [[CMP45:%.*]] = icmp eq i32 [[TMP20]], 0 101; CHECK-NEXT: br i1 [[CMP45]], label [[IF_THEN46:%.*]], label [[FOR_INC]] 102; CHECK: if.then46: 103; CHECK-NEXT: [[ARRAYIDX49:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]] 104; CHECK-NEXT: [[TMP21:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1 105; CHECK-NEXT: [[ARRAYIDX52:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP21]] 106; CHECK-NEXT: [[TMP22:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3 107; CHECK-NEXT: [[ARRAYIDX55:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP22]] 108; CHECK-NEXT: [[TMP23:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2 109; CHECK-NEXT: [[ARRAYIDX58:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP23]] 110; CHECK-NEXT: [[TMP24:%.*]] = bitcast i32* [[ARRAYIDX49]] to <4 x i32>* 111; CHECK-NEXT: [[TMP25:%.*]] = load <4 x i32>, <4 x i32>* [[TMP24]], align 4 112; CHECK-NEXT: [[TMP26:%.*]] = shufflevector <4 x i32> [[TMP25]], <4 x i32> undef, <4 x i32> <i32 0, i32 1, i32 3, i32 2> 113; CHECK-NEXT: br label [[FOR_INC]] 114; CHECK: for.inc: 115; CHECK-NEXT: [[TMP27]] = phi <4 x i32> [ [[TMP7]], [[IF_THEN]] ], [ [[TMP13]], [[IF_THEN14]] ], [ [[TMP19]], [[IF_THEN30]] ], [ [[TMP26]], [[IF_THEN46]] ], [ [[TMP2]], [[IF_ELSE43]] ] 116; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 117; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 100 118; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]] 119; 120entry: 121 %0 = load i32, i32* %A, align 4 122 %cmp1 = icmp eq i32 %0, 0 123 %arrayidx12 = getelementptr inbounds i32, i32* %A, i64 25 124 %arrayidx28 = getelementptr inbounds i32, i32* %A, i64 50 125 %arrayidx44 = getelementptr inbounds i32, i32* %A, i64 75 126 br label %for.body 127 128for.cond.cleanup: ; preds = %for.inc 129 store i32 %tmp0.1, i32* %B, align 4 130 %arrayidx64 = getelementptr inbounds i32, i32* %B, i64 1 131 store i32 %tmp1.1, i32* %arrayidx64, align 4 132 %arrayidx65 = getelementptr inbounds i32, i32* %B, i64 2 133 store i32 %tmp2.1, i32* %arrayidx65, align 4 134 %arrayidx66 = getelementptr inbounds i32, i32* %B, i64 3 135 store i32 %tmp3.1, i32* %arrayidx66, align 4 136 ret void 137 138for.body: ; preds = %for.inc, %entry 139 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.inc ] 140 %tmp3.0111 = phi i32 [ undef, %entry ], [ %tmp3.1, %for.inc ] 141 %tmp2.0110 = phi i32 [ undef, %entry ], [ %tmp2.1, %for.inc ] 142 %tmp1.0109 = phi i32 [ undef, %entry ], [ %tmp1.1, %for.inc ] 143 %tmp0.0108 = phi i32 [ undef, %entry ], [ %tmp0.1, %for.inc ] 144 br i1 %cmp1, label %if.then, label %if.else 145 146if.then: ; preds = %for.body 147 %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv 148 %1 = load i32, i32* %arrayidx2, align 4 149 %2 = add nuw nsw i64 %indvars.iv, 1 150 %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %2 151 %3 = load i32, i32* %arrayidx5, align 4 152 %4 = add nuw nsw i64 %indvars.iv, 2 153 %arrayidx8 = getelementptr inbounds i32, i32* %A, i64 %4 154 %5 = load i32, i32* %arrayidx8, align 4 155 %6 = add nuw nsw i64 %indvars.iv, 3 156 %arrayidx11 = getelementptr inbounds i32, i32* %A, i64 %6 157 %7 = load i32, i32* %arrayidx11, align 4 158 br label %for.inc 159 160if.else: ; preds = %for.body 161 %8 = load i32, i32* %arrayidx12, align 4 162 %cmp13 = icmp eq i32 %8, 0 163 br i1 %cmp13, label %if.then14, label %if.else27 164 165if.then14: ; preds = %if.else 166 %arrayidx17 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv 167 %9 = load i32, i32* %arrayidx17, align 4 168 %10 = add nuw nsw i64 %indvars.iv, 1 169 %arrayidx20 = getelementptr inbounds i32, i32* %A, i64 %10 170 %11 = load i32, i32* %arrayidx20, align 4 171 %12 = add nuw nsw i64 %indvars.iv, 2 172 %arrayidx23 = getelementptr inbounds i32, i32* %A, i64 %12 173 %13 = load i32, i32* %arrayidx23, align 4 174 %14 = add nuw nsw i64 %indvars.iv, 3 175 %arrayidx26 = getelementptr inbounds i32, i32* %A, i64 %14 176 %15 = load i32, i32* %arrayidx26, align 4 177 br label %for.inc 178 179if.else27: ; preds = %if.else 180 %16 = load i32, i32* %arrayidx28, align 4 181 %cmp29 = icmp eq i32 %16, 0 182 br i1 %cmp29, label %if.then30, label %if.else43 183 184if.then30: ; preds = %if.else27 185 %arrayidx33 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv 186 %17 = load i32, i32* %arrayidx33, align 4 187 %18 = add nuw nsw i64 %indvars.iv, 1 188 %arrayidx36 = getelementptr inbounds i32, i32* %A, i64 %18 189 %19 = load i32, i32* %arrayidx36, align 4 190 %20 = add nuw nsw i64 %indvars.iv, 2 191 %arrayidx39 = getelementptr inbounds i32, i32* %A, i64 %20 192 %21 = load i32, i32* %arrayidx39, align 4 193 %22 = add nuw nsw i64 %indvars.iv, 3 194 %arrayidx42 = getelementptr inbounds i32, i32* %A, i64 %22 195 %23 = load i32, i32* %arrayidx42, align 4 196 br label %for.inc 197 198if.else43: ; preds = %if.else27 199 %24 = load i32, i32* %arrayidx44, align 4 200 %cmp45 = icmp eq i32 %24, 0 201 br i1 %cmp45, label %if.then46, label %for.inc 202 203if.then46: ; preds = %if.else43 204 %arrayidx49 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv 205 %25 = load i32, i32* %arrayidx49, align 4 206 %26 = add nuw nsw i64 %indvars.iv, 1 207 %arrayidx52 = getelementptr inbounds i32, i32* %A, i64 %26 208 %27 = load i32, i32* %arrayidx52, align 4 209 %28 = add nuw nsw i64 %indvars.iv, 3 210 %arrayidx55 = getelementptr inbounds i32, i32* %A, i64 %28 211 %29 = load i32, i32* %arrayidx55, align 4 212 %30 = add nuw nsw i64 %indvars.iv, 2 213 %arrayidx58 = getelementptr inbounds i32, i32* %A, i64 %30 214 %31 = load i32, i32* %arrayidx58, align 4 215 br label %for.inc 216 217for.inc: ; preds = %if.then, %if.then30, %if.else43, %if.then46, %if.then14 218 %tmp0.1 = phi i32 [ %1, %if.then ], [ %9, %if.then14 ], [ %17, %if.then30 ], [ %25, %if.then46 ], [ %tmp0.0108, %if.else43 ] 219 %tmp1.1 = phi i32 [ %3, %if.then ], [ %11, %if.then14 ], [ %19, %if.then30 ], [ %27, %if.then46 ], [ %tmp1.0109, %if.else43 ] 220 %tmp2.1 = phi i32 [ %5, %if.then ], [ %13, %if.then14 ], [ %21, %if.then30 ], [ %29, %if.then46 ], [ %tmp2.0110, %if.else43 ] 221 %tmp3.1 = phi i32 [ %7, %if.then ], [ %15, %if.then14 ], [ %23, %if.then30 ], [ %31, %if.then46 ], [ %tmp3.0111, %if.else43 ] 222 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 223 %exitcond = icmp eq i64 %indvars.iv.next, 100 224 br i1 %exitcond, label %for.cond.cleanup, label %for.body 225} 226