; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -S -mtriple=x86_64-unknown -mattr=+avx -slp-vectorizer | FileCheck %s ;void phiUsingLoads(int *restrict A, int *restrict B) { ; int tmp0, tmp1, tmp2, tmp3; ; for (int i = 0; i < 100; i++) { ; if (A[0] == 0) { ; tmp0 = A[i + 0]; ; tmp1 = A[i + 1]; ; tmp2 = A[i + 2]; ; tmp3 = A[i + 3]; ; } else if (A[25] == 0) { ; tmp0 = A[i + 0]; ; tmp1 = A[i + 1]; ; tmp2 = A[i + 2]; ; tmp3 = A[i + 3]; ; } else if (A[50] == 0) { ; tmp0 = A[i + 0]; ; tmp1 = A[i + 1]; ; tmp2 = A[i + 2]; ; tmp3 = A[i + 3]; ; } else if (A[75] == 0) { ; tmp0 = A[i + 0]; ; tmp1 = A[i + 1]; ; tmp2 = A[i + 3]; ; tmp3 = A[i + 2]; ; } ; } ; B[0] = tmp0; ; B[1] = tmp1; ; B[2] = tmp2; ; B[3] = tmp3; ;} ; Function Attrs: norecurse nounwind uwtable define void @phiUsingLoads(i32* noalias nocapture readonly %A, i32* noalias nocapture %B) local_unnamed_addr #0 { ; CHECK-LABEL: @phiUsingLoads( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[A:%.*]], align 4 ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[TMP0]], 0 ; CHECK-NEXT: [[ARRAYIDX12:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 25 ; CHECK-NEXT: [[ARRAYIDX28:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 50 ; CHECK-NEXT: [[ARRAYIDX44:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 75 ; CHECK-NEXT: br label [[FOR_BODY:%.*]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: [[ARRAYIDX64:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 1 ; CHECK-NEXT: [[ARRAYIDX65:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 2 ; CHECK-NEXT: [[ARRAYIDX66:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 3 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[B]] to <4 x i32>* ; CHECK-NEXT: store <4 x i32> [[TMP26:%.*]], <4 x i32>* [[TMP1]], align 4 ; CHECK-NEXT: ret void ; CHECK: for.body: ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_INC:%.*]] ] ; CHECK-NEXT: [[TMP2:%.*]] = phi <4 x i32> [ undef, [[ENTRY]] ], [ [[TMP26]], [[FOR_INC]] ] ; CHECK-NEXT: br i1 [[CMP1]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]] ; CHECK: if.then: ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]] ; CHECK-NEXT: [[TMP3:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1 ; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP3]] ; CHECK-NEXT: [[TMP4:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2 ; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP4]] ; CHECK-NEXT: [[TMP5:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3 ; CHECK-NEXT: [[ARRAYIDX11:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP5]] ; CHECK-NEXT: [[TMP6:%.*]] = bitcast i32* [[ARRAYIDX2]] to <4 x i32>* ; CHECK-NEXT: [[TMP7:%.*]] = load <4 x i32>, <4 x i32>* [[TMP6]], align 4 ; CHECK-NEXT: br label [[FOR_INC]] ; CHECK: if.else: ; CHECK-NEXT: [[TMP8:%.*]] = load i32, i32* [[ARRAYIDX12]], align 4 ; CHECK-NEXT: [[CMP13:%.*]] = icmp eq i32 [[TMP8]], 0 ; CHECK-NEXT: br i1 [[CMP13]], label [[IF_THEN14:%.*]], label [[IF_ELSE27:%.*]] ; CHECK: if.then14: ; CHECK-NEXT: [[ARRAYIDX17:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]] ; CHECK-NEXT: [[TMP9:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1 ; CHECK-NEXT: [[ARRAYIDX20:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP9]] ; CHECK-NEXT: [[TMP10:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2 ; CHECK-NEXT: [[ARRAYIDX23:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP10]] ; CHECK-NEXT: [[TMP11:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3 ; CHECK-NEXT: [[ARRAYIDX26:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP11]] ; CHECK-NEXT: [[TMP12:%.*]] = bitcast i32* [[ARRAYIDX17]] to <4 x i32>* ; CHECK-NEXT: [[TMP13:%.*]] = load <4 x i32>, <4 x i32>* [[TMP12]], align 4 ; CHECK-NEXT: br label [[FOR_INC]] ; CHECK: if.else27: ; CHECK-NEXT: [[TMP14:%.*]] = load i32, i32* [[ARRAYIDX28]], align 4 ; CHECK-NEXT: [[CMP29:%.*]] = icmp eq i32 [[TMP14]], 0 ; CHECK-NEXT: br i1 [[CMP29]], label [[IF_THEN30:%.*]], label [[IF_ELSE43:%.*]] ; CHECK: if.then30: ; CHECK-NEXT: [[ARRAYIDX33:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]] ; CHECK-NEXT: [[TMP15:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1 ; CHECK-NEXT: [[ARRAYIDX36:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP15]] ; CHECK-NEXT: [[TMP16:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2 ; CHECK-NEXT: [[ARRAYIDX39:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP16]] ; CHECK-NEXT: [[TMP17:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3 ; CHECK-NEXT: [[ARRAYIDX42:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP17]] ; CHECK-NEXT: [[TMP18:%.*]] = bitcast i32* [[ARRAYIDX33]] to <4 x i32>* ; CHECK-NEXT: [[TMP19:%.*]] = load <4 x i32>, <4 x i32>* [[TMP18]], align 4 ; CHECK-NEXT: br label [[FOR_INC]] ; CHECK: if.else43: ; CHECK-NEXT: [[TMP20:%.*]] = load i32, i32* [[ARRAYIDX44]], align 4 ; CHECK-NEXT: [[CMP45:%.*]] = icmp eq i32 [[TMP20]], 0 ; CHECK-NEXT: br i1 [[CMP45]], label [[IF_THEN46:%.*]], label [[FOR_INC]] ; CHECK: if.then46: ; CHECK-NEXT: [[ARRAYIDX49:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]] ; CHECK-NEXT: [[TMP21:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1 ; CHECK-NEXT: [[ARRAYIDX52:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP21]] ; CHECK-NEXT: [[TMP22:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3 ; CHECK-NEXT: [[ARRAYIDX55:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP22]] ; CHECK-NEXT: [[TMP23:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2 ; CHECK-NEXT: [[ARRAYIDX58:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP23]] ; CHECK-NEXT: [[TMP24:%.*]] = bitcast i32* [[ARRAYIDX49]] to <4 x i32>* ; CHECK-NEXT: [[TMP25:%.*]] = load <4 x i32>, <4 x i32>* [[TMP24]], align 4 ; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <4 x i32> [[TMP25]], <4 x i32> poison, <4 x i32> ; CHECK-NEXT: br label [[FOR_INC]] ; CHECK: for.inc: ; CHECK-NEXT: [[TMP26]] = phi <4 x i32> [ [[TMP7]], [[IF_THEN]] ], [ [[TMP13]], [[IF_THEN14]] ], [ [[TMP19]], [[IF_THEN30]] ], [ [[SHUFFLE]], [[IF_THEN46]] ], [ [[TMP2]], [[IF_ELSE43]] ] ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 100 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]] ; entry: %0 = load i32, i32* %A, align 4 %cmp1 = icmp eq i32 %0, 0 %arrayidx12 = getelementptr inbounds i32, i32* %A, i64 25 %arrayidx28 = getelementptr inbounds i32, i32* %A, i64 50 %arrayidx44 = getelementptr inbounds i32, i32* %A, i64 75 br label %for.body for.cond.cleanup: ; preds = %for.inc store i32 %tmp0.1, i32* %B, align 4 %arrayidx64 = getelementptr inbounds i32, i32* %B, i64 1 store i32 %tmp1.1, i32* %arrayidx64, align 4 %arrayidx65 = getelementptr inbounds i32, i32* %B, i64 2 store i32 %tmp2.1, i32* %arrayidx65, align 4 %arrayidx66 = getelementptr inbounds i32, i32* %B, i64 3 store i32 %tmp3.1, i32* %arrayidx66, align 4 ret void for.body: ; preds = %for.inc, %entry %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.inc ] %tmp3.0111 = phi i32 [ undef, %entry ], [ %tmp3.1, %for.inc ] %tmp2.0110 = phi i32 [ undef, %entry ], [ %tmp2.1, %for.inc ] %tmp1.0109 = phi i32 [ undef, %entry ], [ %tmp1.1, %for.inc ] %tmp0.0108 = phi i32 [ undef, %entry ], [ %tmp0.1, %for.inc ] br i1 %cmp1, label %if.then, label %if.else if.then: ; preds = %for.body %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv %1 = load i32, i32* %arrayidx2, align 4 %2 = add nuw nsw i64 %indvars.iv, 1 %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %2 %3 = load i32, i32* %arrayidx5, align 4 %4 = add nuw nsw i64 %indvars.iv, 2 %arrayidx8 = getelementptr inbounds i32, i32* %A, i64 %4 %5 = load i32, i32* %arrayidx8, align 4 %6 = add nuw nsw i64 %indvars.iv, 3 %arrayidx11 = getelementptr inbounds i32, i32* %A, i64 %6 %7 = load i32, i32* %arrayidx11, align 4 br label %for.inc if.else: ; preds = %for.body %8 = load i32, i32* %arrayidx12, align 4 %cmp13 = icmp eq i32 %8, 0 br i1 %cmp13, label %if.then14, label %if.else27 if.then14: ; preds = %if.else %arrayidx17 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv %9 = load i32, i32* %arrayidx17, align 4 %10 = add nuw nsw i64 %indvars.iv, 1 %arrayidx20 = getelementptr inbounds i32, i32* %A, i64 %10 %11 = load i32, i32* %arrayidx20, align 4 %12 = add nuw nsw i64 %indvars.iv, 2 %arrayidx23 = getelementptr inbounds i32, i32* %A, i64 %12 %13 = load i32, i32* %arrayidx23, align 4 %14 = add nuw nsw i64 %indvars.iv, 3 %arrayidx26 = getelementptr inbounds i32, i32* %A, i64 %14 %15 = load i32, i32* %arrayidx26, align 4 br label %for.inc if.else27: ; preds = %if.else %16 = load i32, i32* %arrayidx28, align 4 %cmp29 = icmp eq i32 %16, 0 br i1 %cmp29, label %if.then30, label %if.else43 if.then30: ; preds = %if.else27 %arrayidx33 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv %17 = load i32, i32* %arrayidx33, align 4 %18 = add nuw nsw i64 %indvars.iv, 1 %arrayidx36 = getelementptr inbounds i32, i32* %A, i64 %18 %19 = load i32, i32* %arrayidx36, align 4 %20 = add nuw nsw i64 %indvars.iv, 2 %arrayidx39 = getelementptr inbounds i32, i32* %A, i64 %20 %21 = load i32, i32* %arrayidx39, align 4 %22 = add nuw nsw i64 %indvars.iv, 3 %arrayidx42 = getelementptr inbounds i32, i32* %A, i64 %22 %23 = load i32, i32* %arrayidx42, align 4 br label %for.inc if.else43: ; preds = %if.else27 %24 = load i32, i32* %arrayidx44, align 4 %cmp45 = icmp eq i32 %24, 0 br i1 %cmp45, label %if.then46, label %for.inc if.then46: ; preds = %if.else43 %arrayidx49 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv %25 = load i32, i32* %arrayidx49, align 4 %26 = add nuw nsw i64 %indvars.iv, 1 %arrayidx52 = getelementptr inbounds i32, i32* %A, i64 %26 %27 = load i32, i32* %arrayidx52, align 4 %28 = add nuw nsw i64 %indvars.iv, 3 %arrayidx55 = getelementptr inbounds i32, i32* %A, i64 %28 %29 = load i32, i32* %arrayidx55, align 4 %30 = add nuw nsw i64 %indvars.iv, 2 %arrayidx58 = getelementptr inbounds i32, i32* %A, i64 %30 %31 = load i32, i32* %arrayidx58, align 4 br label %for.inc for.inc: ; preds = %if.then, %if.then30, %if.else43, %if.then46, %if.then14 %tmp0.1 = phi i32 [ %1, %if.then ], [ %9, %if.then14 ], [ %17, %if.then30 ], [ %25, %if.then46 ], [ %tmp0.0108, %if.else43 ] %tmp1.1 = phi i32 [ %3, %if.then ], [ %11, %if.then14 ], [ %19, %if.then30 ], [ %27, %if.then46 ], [ %tmp1.0109, %if.else43 ] %tmp2.1 = phi i32 [ %5, %if.then ], [ %13, %if.then14 ], [ %21, %if.then30 ], [ %29, %if.then46 ], [ %tmp2.0110, %if.else43 ] %tmp3.1 = phi i32 [ %7, %if.then ], [ %15, %if.then14 ], [ %23, %if.then30 ], [ %31, %if.then46 ], [ %tmp3.0111, %if.else43 ] %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 %exitcond = icmp eq i64 %indvars.iv.next, 100 br i1 %exitcond, label %for.cond.cleanup, label %for.body }