| ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -dce -instcombine -S | FileCheck %s |
| ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=2 -dce -instcombine -S | FileCheck %s --check-prefix=UNROLL |
| ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=2 -S | FileCheck %s --check-prefix=UNROLL-NO-IC |
| ; RUN: opt < %s -loop-vectorize -force-vector-width=1 -force-vector-interleave=2 -S | FileCheck %s --check-prefix=UNROLL-NO-VF |
| ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -S | FileCheck %s --check-prefix=SINK-AFTER |
| ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -S | FileCheck %s --check-prefix=NO-SINK-AFTER |
| |
| target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" |
| |
| ; void recurrence_1(int *a, int *b, int n) { |
| ; for(int i = 0; i < n; i++) |
| ; b[i] = a[i] + a[i - 1] |
| ; } |
| ; |
| ; CHECK-LABEL: @recurrence_1( |
| ; CHECK: vector.ph: |
| ; CHECK: %vector.recur.init = insertelement <4 x i32> poison, i32 %pre_load, i32 3 |
| ; CHECK: vector.body: |
| ; CHECK: %vector.recur = phi <4 x i32> [ %vector.recur.init, %vector.ph ], [ [[L1:%[a-zA-Z0-9.]+]], %vector.body ] |
| ; CHECK: [[L1]] = load <4 x i32> |
| ; CHECK: {{.*}} = shufflevector <4 x i32> %vector.recur, <4 x i32> [[L1]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; CHECK: middle.block: |
| ; CHECK: %vector.recur.extract = extractelement <4 x i32> [[L1]], i32 3 |
| ; CHECK: scalar.ph: |
| ; CHECK: %scalar.recur.init = phi i32 [ %pre_load, %vector.memcheck ], [ %pre_load, %for.preheader ], [ %vector.recur.extract, %middle.block ] |
| ; CHECK: scalar.body: |
| ; CHECK: %scalar.recur = phi i32 [ %scalar.recur.init, %scalar.ph ], [ {{.*}}, %scalar.body ] |
| ; |
| ; UNROLL-LABEL: @recurrence_1( |
| ; UNROLL: vector.body: |
| ; UNROLL: %vector.recur = phi <4 x i32> [ %vector.recur.init, %vector.ph ], [ [[L2:%[a-zA-Z0-9.]+]], %vector.body ] |
| ; UNROLL: [[L1:%[a-zA-Z0-9.]+]] = load <4 x i32> |
| ; UNROLL: [[L2]] = load <4 x i32> |
| ; UNROLL: {{.*}} = shufflevector <4 x i32> %vector.recur, <4 x i32> [[L1]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL: {{.*}} = shufflevector <4 x i32> [[L1]], <4 x i32> [[L2]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL: middle.block: |
| ; UNROLL: %vector.recur.extract = extractelement <4 x i32> [[L2]], i32 3 |
| ; |
| define void @recurrence_1(i32* nocapture readonly %a, i32* nocapture %b, i32 %n) { |
| entry: |
| br label %for.preheader |
| |
| for.preheader: |
| %arrayidx.phi.trans.insert = getelementptr inbounds i32, i32* %a, i64 0 |
| %pre_load = load i32, i32* %arrayidx.phi.trans.insert |
| br label %scalar.body |
| |
| scalar.body: |
| %0 = phi i32 [ %pre_load, %for.preheader ], [ %1, %scalar.body ] |
| %indvars.iv = phi i64 [ 0, %for.preheader ], [ %indvars.iv.next, %scalar.body ] |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %arrayidx32 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv.next |
| %1 = load i32, i32* %arrayidx32 |
| %arrayidx34 = getelementptr inbounds i32, i32* %b, i64 %indvars.iv |
| %add35 = add i32 %1, %0 |
| store i32 %add35, i32* %arrayidx34 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, %n |
| br i1 %exitcond, label %for.exit, label %scalar.body |
| |
| for.exit: |
| ret void |
| } |
| |
| ; int recurrence_2(int *a, int n) { |
| ; int minmax; |
| ; for (int i = 0; i < n; ++i) |
| ; minmax = min(minmax, max(a[i] - a[i-1], 0)); |
| ; return minmax; |
| ; } |
| ; |
| ; CHECK-LABEL: @recurrence_2( |
| ; CHECK: vector.ph: |
| ; CHECK: %vector.recur.init = insertelement <4 x i32> poison, i32 %.pre, i32 3 |
| ; CHECK: vector.body: |
| ; CHECK: %vector.recur = phi <4 x i32> [ %vector.recur.init, %vector.ph ], [ [[L1:%[a-zA-Z0-9.]+]], %vector.body ] |
| ; CHECK: [[L1]] = load <4 x i32> |
| ; CHECK: {{.*}} = shufflevector <4 x i32> %vector.recur, <4 x i32> [[L1]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; CHECK: middle.block: |
| ; CHECK: %vector.recur.extract = extractelement <4 x i32> [[L1]], i32 3 |
| ; CHECK: scalar.ph: |
| ; CHECK: %scalar.recur.init = phi i32 [ %.pre, %for.preheader ], [ %vector.recur.extract, %middle.block ] |
| ; CHECK: scalar.body: |
| ; CHECK: %scalar.recur = phi i32 [ %scalar.recur.init, %scalar.ph ], [ {{.*}}, %scalar.body ] |
| ; |
| ; UNROLL-LABEL: @recurrence_2( |
| ; UNROLL: vector.body: |
| ; UNROLL: %vector.recur = phi <4 x i32> [ %vector.recur.init, %vector.ph ], [ [[L2:%[a-zA-Z0-9.]+]], %vector.body ] |
| ; UNROLL: [[L1:%[a-zA-Z0-9.]+]] = load <4 x i32> |
| ; UNROLL: [[L2]] = load <4 x i32> |
| ; UNROLL: {{.*}} = shufflevector <4 x i32> %vector.recur, <4 x i32> [[L1]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL: {{.*}} = shufflevector <4 x i32> [[L1]], <4 x i32> [[L2]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL: middle.block: |
| ; UNROLL: %vector.recur.extract = extractelement <4 x i32> [[L2]], i32 3 |
| ; |
| define i32 @recurrence_2(i32* nocapture readonly %a, i32 %n) { |
| entry: |
| %cmp27 = icmp sgt i32 %n, 0 |
| br i1 %cmp27, label %for.preheader, label %for.cond.cleanup |
| |
| for.preheader: |
| %arrayidx2.phi.trans.insert = getelementptr inbounds i32, i32* %a, i64 -1 |
| %.pre = load i32, i32* %arrayidx2.phi.trans.insert, align 4 |
| br label %scalar.body |
| |
| for.cond.cleanup.loopexit: |
| %minmax.0.cond.lcssa = phi i32 [ %minmax.0.cond, %scalar.body ] |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: |
| %minmax.0.lcssa = phi i32 [ poison, %entry ], [ %minmax.0.cond.lcssa, %for.cond.cleanup.loopexit ] |
| ret i32 %minmax.0.lcssa |
| |
| scalar.body: |
| %0 = phi i32 [ %.pre, %for.preheader ], [ %1, %scalar.body ] |
| %indvars.iv = phi i64 [ 0, %for.preheader ], [ %indvars.iv.next, %scalar.body ] |
| %minmax.028 = phi i32 [ poison, %for.preheader ], [ %minmax.0.cond, %scalar.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv |
| %1 = load i32, i32* %arrayidx, align 4 |
| %sub3 = sub nsw i32 %1, %0 |
| %cmp4 = icmp sgt i32 %sub3, 0 |
| %cond = select i1 %cmp4, i32 %sub3, i32 0 |
| %cmp5 = icmp slt i32 %minmax.028, %cond |
| %minmax.0.cond = select i1 %cmp5, i32 %minmax.028, i32 %cond |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, %n |
| br i1 %exitcond, label %for.cond.cleanup.loopexit, label %scalar.body |
| } |
| |
| ; void recurrence_3(short *a, double *b, int n, float f, short p) { |
| ; b[0] = (double)a[0] - f * (double)p; |
| ; for (int i = 1; i < n; i++) |
| ; b[i] = (double)a[i] - f * (double)a[i - 1]; |
| ; } |
| ; |
| ; CHECK-LABEL: @recurrence_3( |
| ; CHECK: vector.ph: |
| ; CHECK: %vector.recur.init = insertelement <4 x i16> poison, i16 %0, i32 3 |
| ; CHECK: vector.body: |
| ; CHECK: %vector.recur = phi <4 x i16> [ %vector.recur.init, %vector.ph ], [ [[L1:%[a-zA-Z0-9.]+]], %vector.body ] |
| ; CHECK: [[L1]] = load <4 x i16> |
| ; CHECK: [[SHUF:%[a-zA-Z0-9.]+]] = shufflevector <4 x i16> %vector.recur, <4 x i16> [[L1]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; Check also that the casts were not moved needlessly. |
| ; CHECK: sitofp <4 x i16> [[L1]] to <4 x double> |
| ; CHECK: sitofp <4 x i16> [[SHUF]] to <4 x double> |
| ; CHECK: middle.block: |
| ; CHECK: %vector.recur.extract = extractelement <4 x i16> [[L1]], i32 3 |
| ; CHECK: scalar.ph: |
| ; CHECK: %scalar.recur.init = phi i16 [ %0, %vector.memcheck ], [ %0, %for.preheader ], [ %vector.recur.extract, %middle.block ] |
| ; CHECK: scalar.body: |
| ; CHECK: %scalar.recur = phi i16 [ %scalar.recur.init, %scalar.ph ], [ {{.*}}, %scalar.body ] |
| ; |
| ; UNROLL-LABEL: @recurrence_3( |
| ; UNROLL: vector.body: |
| ; UNROLL: %vector.recur = phi <4 x i16> [ %vector.recur.init, %vector.ph ], [ [[L2:%[a-zA-Z0-9.]+]], %vector.body ] |
| ; UNROLL: [[L1:%[a-zA-Z0-9.]+]] = load <4 x i16> |
| ; UNROLL: [[L2]] = load <4 x i16> |
| ; UNROLL: {{.*}} = shufflevector <4 x i16> %vector.recur, <4 x i16> [[L1]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL: {{.*}} = shufflevector <4 x i16> [[L1]], <4 x i16> [[L2]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL: middle.block: |
| ; UNROLL: %vector.recur.extract = extractelement <4 x i16> [[L2]], i32 3 |
| ; |
| define void @recurrence_3(i16* nocapture readonly %a, double* nocapture %b, i32 %n, float %f, i16 %p) { |
| entry: |
| %0 = load i16, i16* %a, align 2 |
| %conv = sitofp i16 %0 to double |
| %conv1 = fpext float %f to double |
| %conv2 = sitofp i16 %p to double |
| %mul = fmul fast double %conv2, %conv1 |
| %sub = fsub fast double %conv, %mul |
| store double %sub, double* %b, align 8 |
| %cmp25 = icmp sgt i32 %n, 1 |
| br i1 %cmp25, label %for.preheader, label %for.end |
| |
| for.preheader: |
| br label %scalar.body |
| |
| scalar.body: |
| %1 = phi i16 [ %0, %for.preheader ], [ %2, %scalar.body ] |
| %advars.iv = phi i64 [ %advars.iv.next, %scalar.body ], [ 1, %for.preheader ] |
| %arrayidx5 = getelementptr inbounds i16, i16* %a, i64 %advars.iv |
| %2 = load i16, i16* %arrayidx5, align 2 |
| %conv6 = sitofp i16 %2 to double |
| %conv11 = sitofp i16 %1 to double |
| %mul12 = fmul fast double %conv11, %conv1 |
| %sub13 = fsub fast double %conv6, %mul12 |
| %arrayidx15 = getelementptr inbounds double, double* %b, i64 %advars.iv |
| store double %sub13, double* %arrayidx15, align 8 |
| %advars.iv.next = add nuw nsw i64 %advars.iv, 1 |
| %lftr.wideiv = trunc i64 %advars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, %n |
| br i1 %exitcond, label %for.end.loopexit, label %scalar.body |
| |
| for.end.loopexit: |
| br label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| ; void PR26734(short *a, int *b, int *c, int d, short *e) { |
| ; for (; d != 21; d++) { |
| ; *b &= *c; |
| ; *e = *a - 6; |
| ; *c = *e; |
| ; } |
| ; } |
| ; |
| ; CHECK-LABEL: @PR26734( |
| ; CHECK-NOT: vector.ph: |
| ; CHECK: } |
| ; |
| define void @PR26734(i16* %a, i32* %b, i32* %c, i32 %d, i16* %e) { |
| entry: |
| %cmp4 = icmp eq i32 %d, 21 |
| br i1 %cmp4, label %entry.for.end_crit_edge, label %for.body.lr.ph |
| |
| entry.for.end_crit_edge: |
| %.pre = load i32, i32* %b, align 4 |
| br label %for.end |
| |
| for.body.lr.ph: |
| %0 = load i16, i16* %a, align 2 |
| %sub = add i16 %0, -6 |
| %conv2 = sext i16 %sub to i32 |
| %c.promoted = load i32, i32* %c, align 4 |
| %b.promoted = load i32, i32* %b, align 4 |
| br label %for.body |
| |
| for.body: |
| %inc7 = phi i32 [ %d, %for.body.lr.ph ], [ %inc, %for.body ] |
| %and6 = phi i32 [ %b.promoted, %for.body.lr.ph ], [ %and, %for.body ] |
| %conv25 = phi i32 [ %c.promoted, %for.body.lr.ph ], [ %conv2, %for.body ] |
| %and = and i32 %and6, %conv25 |
| %inc = add nsw i32 %inc7, 1 |
| %cmp = icmp eq i32 %inc, 21 |
| br i1 %cmp, label %for.cond.for.end_crit_edge, label %for.body |
| |
| for.cond.for.end_crit_edge: |
| %and.lcssa = phi i32 [ %and, %for.body ] |
| store i32 %conv2, i32* %c, align 4 |
| store i32 %and.lcssa, i32* %b, align 4 |
| store i16 %sub, i16* %e, align 2 |
| br label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| ; int PR27246() { |
| ; unsigned int e, n; |
| ; for (int i = 1; i < 49; ++i) { |
| ; for (int k = i; k > 1; --k) |
| ; e = k; |
| ; n = e; |
| ; } |
| ; return n; |
| ; } |
| ; |
| ; CHECK-LABEL: @PR27246( |
| ; CHECK-NOT: vector.ph: |
| ; CHECK: } |
| ; |
| define i32 @PR27246() { |
| entry: |
| br label %for.cond1.preheader |
| |
| for.cond1.preheader: |
| %i.016 = phi i32 [ 1, %entry ], [ %inc, %for.cond.cleanup3 ] |
| %e.015 = phi i32 [ poison, %entry ], [ %e.1.lcssa, %for.cond.cleanup3 ] |
| br label %for.cond1 |
| |
| for.cond.cleanup: |
| %e.1.lcssa.lcssa = phi i32 [ %e.1.lcssa, %for.cond.cleanup3 ] |
| ret i32 %e.1.lcssa.lcssa |
| |
| for.cond1: |
| %e.1 = phi i32 [ %k.0, %for.cond1 ], [ %e.015, %for.cond1.preheader ] |
| %k.0 = phi i32 [ %dec, %for.cond1 ], [ %i.016, %for.cond1.preheader ] |
| %cmp2 = icmp sgt i32 %k.0, 1 |
| %dec = add nsw i32 %k.0, -1 |
| br i1 %cmp2, label %for.cond1, label %for.cond.cleanup3 |
| |
| for.cond.cleanup3: |
| %e.1.lcssa = phi i32 [ %e.1, %for.cond1 ] |
| %inc = add nuw nsw i32 %i.016, 1 |
| %exitcond = icmp eq i32 %inc, 49 |
| br i1 %exitcond, label %for.cond.cleanup, label %for.cond1.preheader |
| } |
| |
| ; UNROLL-NO-IC-LABEL: @PR30183( |
| ; UNROLL-NO-IC: vector.ph: |
| ; UNROLL-NO-IC: [[VECTOR_RECUR_INIT:%.*]] = insertelement <4 x i32> poison, i32 [[PRE_LOAD:%.*]], i32 3 |
| ; UNROLL-NO-IC-NEXT: br label %vector.body |
| ; UNROLL-NO-IC: vector.body: |
| ; UNROLL-NO-IC-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ] |
| ; UNROLL-NO-IC-NEXT: [[VECTOR_RECUR:%.*]] = phi <4 x i32> [ [[VECTOR_RECUR_INIT]], %vector.ph ], [ [[TMP42:%.*]], %vector.body ] |
| ; UNROLL-NO-IC: [[TMP27:%.*]] = load i32, i32* {{.*}} |
| ; UNROLL-NO-IC-NEXT: [[TMP28:%.*]] = load i32, i32* {{.*}} |
| ; UNROLL-NO-IC-NEXT: [[TMP29:%.*]] = load i32, i32* {{.*}} |
| ; UNROLL-NO-IC-NEXT: [[TMP30:%.*]] = load i32, i32* {{.*}} |
| ; UNROLL-NO-IC-NEXT: [[TMP35:%.*]] = insertelement <4 x i32> poison, i32 [[TMP27]], i32 0 |
| ; UNROLL-NO-IC-NEXT: [[TMP36:%.*]] = insertelement <4 x i32> [[TMP35]], i32 [[TMP28]], i32 1 |
| ; UNROLL-NO-IC-NEXT: [[TMP37:%.*]] = insertelement <4 x i32> [[TMP36]], i32 [[TMP29]], i32 2 |
| ; UNROLL-NO-IC-NEXT: [[TMP38:%.*]] = insertelement <4 x i32> [[TMP37]], i32 [[TMP30]], i32 3 |
| ; UNROLL-NO-IC-NEXT: [[TMP31:%.*]] = load i32, i32* {{.*}} |
| ; UNROLL-NO-IC-NEXT: [[TMP32:%.*]] = load i32, i32* {{.*}} |
| ; UNROLL-NO-IC-NEXT: [[TMP33:%.*]] = load i32, i32* {{.*}} |
| ; UNROLL-NO-IC-NEXT: [[TMP34:%.*]] = load i32, i32* {{.*}} |
| ; UNROLL-NO-IC-NEXT: [[TMP39:%.*]] = insertelement <4 x i32> poison, i32 [[TMP31]], i32 0 |
| ; UNROLL-NO-IC-NEXT: [[TMP40:%.*]] = insertelement <4 x i32> [[TMP39]], i32 [[TMP32]], i32 1 |
| ; UNROLL-NO-IC-NEXT: [[TMP41:%.*]] = insertelement <4 x i32> [[TMP40]], i32 [[TMP33]], i32 2 |
| ; UNROLL-NO-IC-NEXT: [[TMP42]] = insertelement <4 x i32> [[TMP41]], i32 [[TMP34]], i32 3 |
| ; UNROLL-NO-IC-NEXT: [[TMP43:%.*]] = shufflevector <4 x i32> [[VECTOR_RECUR]], <4 x i32> [[TMP38]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL-NO-IC-NEXT: [[TMP44:%.*]] = shufflevector <4 x i32> [[TMP38]], <4 x i32> [[TMP42]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL-NO-IC-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 |
| ; UNROLL-NO-IC: br i1 {{.*}}, label %middle.block, label %vector.body |
| ; |
| define void @PR30183(i32 %pre_load, i32* %a, i32* %b, i64 %n) { |
| entry: |
| br label %scalar.body |
| |
| scalar.body: |
| %i = phi i64 [ 0, %entry ], [ %i.next, %scalar.body ] |
| %tmp0 = phi i32 [ %pre_load, %entry ], [ %tmp2, %scalar.body ] |
| %i.next = add nuw nsw i64 %i, 2 |
| %tmp1 = getelementptr inbounds i32, i32* %a, i64 %i.next |
| %tmp2 = load i32, i32* %tmp1 |
| %cond = icmp eq i64 %i.next,%n |
| br i1 %cond, label %for.end, label %scalar.body |
| |
| for.end: |
| ret void |
| } |
| |
| ; UNROLL-NO-IC-LABEL: @constant_folded_previous_value( |
| ; UNROLL-NO-IC: vector.body: |
| ; UNROLL-NO-IC: [[VECTOR_RECUR:%.*]] = phi <4 x i64> [ <i64 poison, i64 poison, i64 poison, i64 0>, %vector.ph ], [ <i64 1, i64 1, i64 1, i64 1>, %vector.body ] |
| ; UNROLL-NO-IC: [[TMP0:%.*]] = shufflevector <4 x i64> [[VECTOR_RECUR]], <4 x i64> <i64 1, i64 1, i64 1, i64 1>, <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; CHECK-NO-IC-NEXT: add nuw i64 |
| ; UNROLL-NO-IC: br i1 {{.*}}, label %middle.block, label %vector.body |
| ; |
| define void @constant_folded_previous_value() { |
| entry: |
| br label %scalar.body |
| |
| scalar.body: |
| %i = phi i64 [ 0, %entry ], [ %i.next, %scalar.body ] |
| %tmp2 = phi i64 [ 0, %entry ], [ %tmp3, %scalar.body ] |
| %tmp3 = add i64 0, 1 |
| %i.next = add nuw nsw i64 %i, 1 |
| %cond = icmp eq i64 %i.next, undef |
| br i1 %cond, label %for.end, label %scalar.body |
| |
| for.end: |
| ret void |
| } |
| |
| ; We vectorize this first order recurrence, by generating two |
| ; extracts for the phi `val.phi` - one at the last index and |
| ; another at the second last index. We need these 2 extracts because |
| ; the first order recurrence phi is used outside the loop, so we require the phi |
| ; itself and not its update (addx). |
| ; UNROLL-NO-IC-LABEL: extract_second_last_iteration |
| ; UNROLL-NO-IC: vector.body |
| ; UNROLL-NO-IC: %step.add = add <4 x i32> %vec.ind, <i32 4, i32 4, i32 4, i32 4> |
| ; UNROLL-NO-IC: %[[L1:.+]] = add <4 x i32> %vec.ind, %broadcast.splat |
| ; UNROLL-NO-IC: %[[L2:.+]] = add <4 x i32> %step.add, %broadcast.splat |
| ; UNROLL-NO-IC: %index.next = add nuw i32 %index, 8 |
| ; UNROLL-NO-IC: icmp eq i32 %index.next, 96 |
| ; UNROLL-NO-IC: middle.block |
| ; UNROLL-NO-IC: icmp eq i32 96, 96 |
| ; UNROLL-NO-IC: %vector.recur.extract = extractelement <4 x i32> %[[L2]], i32 3 |
| ; UNROLL-NO-IC: %vector.recur.extract.for.phi = extractelement <4 x i32> %[[L2]], i32 2 |
| ; UNROLL-NO-IC: for.end |
| ; UNROLL-NO-IC: %val.phi.lcssa = phi i32 [ %scalar.recur, %for.body ], [ %vector.recur.extract.for.phi, %middle.block ] |
| ; Check the case when unrolled but not vectorized. |
| ; UNROLL-NO-VF-LABEL: extract_second_last_iteration |
| ; UNROLL-NO-VF: vector.body: |
| ; UNROLL-NO-VF: %induction = add i32 %index, 0 |
| ; UNROLL-NO-VF: %induction1 = add i32 %index, 1 |
| ; UNROLL-NO-VF: %[[L1:.+]] = add i32 %induction, %x |
| ; UNROLL-NO-VF: %[[L2:.+]] = add i32 %induction1, %x |
| ; UNROLL-NO-VF: %index.next = add nuw i32 %index, 2 |
| ; UNROLL-NO-VF: icmp eq i32 %index.next, 96 |
| ; UNROLL-NO-VF: for.end: |
| ; UNROLL-NO-VF: %val.phi.lcssa = phi i32 [ %scalar.recur, %for.body ], [ %[[L1]], %middle.block ] |
| define i32 @extract_second_last_iteration(i32* %cval, i32 %x) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %inc.phi = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %val.phi = phi i32 [ 0, %entry ], [ %addx, %for.body ] |
| %inc = add i32 %inc.phi, 1 |
| %bc = zext i32 %inc.phi to i64 |
| %addx = add i32 %inc.phi, %x |
| %cmp = icmp eq i32 %inc.phi, 95 |
| br i1 %cmp, label %for.end, label %for.body |
| |
| for.end: |
| ret i32 %val.phi |
| } |
| |
| ; We vectorize this first order recurrence, with a set of insertelements for |
| ; each unrolled part. Make sure these insertelements are generated in-order, |
| ; because the shuffle of the first order recurrence will be added after the |
| ; insertelement of the last part UF - 1, assuming the latter appears after the |
| ; insertelements of all other parts. |
| ; |
| ; int PR33613(double *b, double j, int d) { |
| ; int a = 0; |
| ; for(int i = 0; i < 10240; i++, b+=25) { |
| ; double f = b[d]; // Scalarize to form insertelements |
| ; if (j * f) |
| ; a++; |
| ; j = f; |
| ; } |
| ; return a; |
| ; } |
| ; |
| ; UNROLL-NO-IC-LABEL: @PR33613( |
| ; UNROLL-NO-IC: vector.body: |
| ; UNROLL-NO-IC: [[VECTOR_RECUR:%.*]] = phi <4 x double> |
| ; UNROLL-NO-IC: shufflevector <4 x double> [[VECTOR_RECUR]], <4 x double> {{.*}}, <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL-NO-IC-NEXT: shufflevector <4 x double> {{.*}}, <4 x double> {{.*}}, <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; UNROLL-NO-IC-NOT: insertelement <4 x double> |
| ; UNROLL-NO-IC: middle.block: |
| ; |
| define i32 @PR33613(double* %b, double %j, i32 %d) { |
| entry: |
| %idxprom = sext i32 %d to i64 |
| br label %for.body |
| |
| for.cond.cleanup: |
| %a.1.lcssa = phi i32 [ %a.1, %for.body ] |
| ret i32 %a.1.lcssa |
| |
| for.body: |
| %b.addr.012 = phi double* [ %b, %entry ], [ %add.ptr, %for.body ] |
| %i.011 = phi i32 [ 0, %entry ], [ %inc1, %for.body ] |
| %a.010 = phi i32 [ 0, %entry ], [ %a.1, %for.body ] |
| %j.addr.09 = phi double [ %j, %entry ], [ %0, %for.body ] |
| %arrayidx = getelementptr inbounds double, double* %b.addr.012, i64 %idxprom |
| %0 = load double, double* %arrayidx, align 8 |
| %mul = fmul double %j.addr.09, %0 |
| %tobool = fcmp une double %mul, 0.000000e+00 |
| %inc = zext i1 %tobool to i32 |
| %a.1 = add nsw i32 %a.010, %inc |
| %inc1 = add nuw nsw i32 %i.011, 1 |
| %add.ptr = getelementptr inbounds double, double* %b.addr.012, i64 25 |
| %exitcond = icmp eq i32 %inc1, 10240 |
| br i1 %exitcond, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; void sink_after(short *a, int n, int *b) { |
| ; for(int i = 0; i < n; i++) |
| ; b[i] = (a[i] * a[i + 1]); |
| ; } |
| ; |
| ; SINK-AFTER-LABEL: sink_after |
| ; Check that the sext sank after the load in the vector loop. |
| ; SINK-AFTER: vector.body |
| ; SINK-AFTER: %vector.recur = phi <4 x i16> [ %vector.recur.init, %vector.ph ], [ %wide.load, %vector.body ] |
| ; SINK-AFTER: %wide.load = load <4 x i16> |
| ; SINK-AFTER: %[[VSHUF:.+]] = shufflevector <4 x i16> %vector.recur, <4 x i16> %wide.load, <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; SINK-AFTER: %[[VCONV:.+]] = sext <4 x i16> %[[VSHUF]] to <4 x i32> |
| ; SINK-AFTER: %[[VCONV3:.+]] = sext <4 x i16> %wide.load to <4 x i32> |
| ; SINK-AFTER: mul nsw <4 x i32> %[[VCONV3]], %[[VCONV]] |
| ; |
| define void @sink_after(i16* %a, i32* %b, i64 %n) { |
| entry: |
| %.pre = load i16, i16* %a |
| br label %for.body |
| |
| for.body: |
| %0 = phi i16 [ %.pre, %entry ], [ %1, %for.body ] |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %conv = sext i16 %0 to i32 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %arrayidx2 = getelementptr inbounds i16, i16* %a, i64 %indvars.iv.next |
| %1 = load i16, i16* %arrayidx2 |
| %conv3 = sext i16 %1 to i32 |
| %mul = mul nsw i32 %conv3, %conv |
| %arrayidx5 = getelementptr inbounds i32, i32* %b, i64 %indvars.iv |
| store i32 %mul, i32* %arrayidx5 |
| %exitcond = icmp eq i64 %indvars.iv.next, %n |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret void |
| } |
| |
| ; PR34711: given three consecutive instructions such that the first will be |
| ; widened, the second is a cast that will be widened and needs to sink after the |
| ; third, and the third is a first-order-recurring load that will be replicated |
| ; instead of widened. Although the cast and the first instruction will both be |
| ; widened, and are originally adjacent to each other, make sure the replicated |
| ; load ends up appearing between them. |
| ; |
| ; void PR34711(short[2] *a, int *b, int *c, int n) { |
| ; for(int i = 0; i < n; i++) { |
| ; c[i] = 7; |
| ; b[i] = (a[i][0] * a[i][1]); |
| ; } |
| ; } |
| ; |
| ; SINK-AFTER-LABEL: @PR34711 |
| ; Check that the sext sank after the load in the vector loop. |
| ; SINK-AFTER: vector.body |
| ; SINK-AFTER: %vector.recur = phi <4 x i16> [ %vector.recur.init, %vector.ph ], [ {{.*}}, %vector.body ] |
| ; SINK-AFTER: %[[VSHUF:.+]] = shufflevector <4 x i16> %vector.recur, <4 x i16> %{{.*}}, <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; SINK-AFTER: %[[VCONV:.+]] = sext <4 x i16> %[[VSHUF]] to <4 x i32> |
| ; SINK-AFTER: %[[VCONV3:.+]] = sext <4 x i16> {{.*}} to <4 x i32> |
| ; SINK-AFTER: mul nsw <4 x i32> %[[VCONV3]], %[[VCONV]] |
| ; |
| define void @PR34711([2 x i16]* %a, i32* %b, i32* %c, i64 %n) { |
| entry: |
| %pre.index = getelementptr inbounds [2 x i16], [2 x i16]* %a, i64 0, i64 0 |
| %.pre = load i16, i16* %pre.index |
| br label %for.body |
| |
| for.body: |
| %0 = phi i16 [ %.pre, %entry ], [ %1, %for.body ] |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arraycidx = getelementptr inbounds i32, i32* %c, i64 %indvars.iv |
| %cur.index = getelementptr inbounds [2 x i16], [2 x i16]* %a, i64 %indvars.iv, i64 1 |
| store i32 7, i32* %arraycidx ; 1st instruction, to be widened. |
| %conv = sext i16 %0 to i32 ; 2nd, cast to sink after third. |
| %1 = load i16, i16* %cur.index ; 3rd, first-order-recurring load not widened. |
| %conv3 = sext i16 %1 to i32 |
| %mul = mul nsw i32 %conv3, %conv |
| %arrayidx5 = getelementptr inbounds i32, i32* %b, i64 %indvars.iv |
| store i32 %mul, i32* %arrayidx5 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond = icmp eq i64 %indvars.iv.next, %n |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret void |
| } |
| |
| ; void no_sink_after(short *a, int n, int *b) { |
| ; for(int i = 0; i < n; i++) |
| ; b[i] = ((a[i] + 2) * a[i + 1]); |
| ; } |
| ; |
| ; SINK-AFTER-LABEL: @sink_after_with_multiple_users |
| ; SINK-AFTER-LABEL: vector.ph: |
| ; SINK-AFTER-NEXT: %n.mod.vf = urem i64 %n, 4 |
| ; SINK-AFTER-NEXT: %n.vec = sub i64 %n, %n.mod.vf |
| ; SINK-AFTER-NEXT: %vector.recur.init = insertelement <4 x i16> poison, i16 %.pre, i32 3 |
| ; SINK-AFTER-NEXT: br label %vector.body |
| |
| ; SINK-AFTER-LABEL: vector.body: |
| ; SINK-AFTER-NEXT: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ] |
| ; SINK-AFTER-NEXT: %vector.recur = phi <4 x i16> [ %vector.recur.init, %vector.ph ], [ %wide.load, %vector.body ] |
| ; SINK-AFTER-NEXT: %1 = add i64 %index, 0 |
| ; SINK-AFTER-NEXT: %2 = add nuw nsw i64 %1, 1 |
| ; SINK-AFTER-NEXT: %3 = getelementptr inbounds i16, i16* %a, i64 %2 |
| ; SINK-AFTER-NEXT: %4 = getelementptr inbounds i16, i16* %3, i32 0 |
| ; SINK-AFTER-NEXT: %5 = bitcast i16* %4 to <4 x i16>* |
| ; SINK-AFTER-NEXT: %wide.load = load <4 x i16>, <4 x i16>* %5, align 2, !alias.scope !43 |
| ; SINK-AFTER-NEXT: %6 = shufflevector <4 x i16> %vector.recur, <4 x i16> %wide.load, <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; SINK-AFTER-NEXT: %7 = sext <4 x i16> %6 to <4 x i32> |
| ; SINK-AFTER-NEXT: %8 = add nsw <4 x i32> %7, <i32 2, i32 2, i32 2, i32 2> |
| ; SINK-AFTER-NEXT: %9 = sext <4 x i16> %wide.load to <4 x i32> |
| ; SINK-AFTER-NEXT: %10 = mul nsw <4 x i32> %8, %9 |
| ; SINK-AFTER-NEXT: %11 = getelementptr inbounds i32, i32* %b, i64 %1 |
| ; SINK-AFTER-NEXT: %12 = getelementptr inbounds i32, i32* %11, i32 0 |
| ; SINK-AFTER-NEXT: %13 = bitcast i32* %12 to <4 x i32>* |
| ; SINK-AFTER-NEXT: store <4 x i32> %10, <4 x i32>* %13, align 4, !alias.scope !46, !noalias !43 |
| ; SINK-AFTER-NEXT: %index.next = add nuw i64 %index, 4 |
| ; SINK-AFTER-NEXT: %14 = icmp eq i64 %index.next, %n.vec |
| ; SINK-AFTER-NEXT: br i1 %14, label %middle.block, label %vector.body, !llvm.loop !48 |
| ; |
| define void @sink_after_with_multiple_users(i16* %a, i32* %b, i64 %n) { |
| entry: |
| %.pre = load i16, i16* %a |
| br label %for.body |
| |
| for.body: |
| %0 = phi i16 [ %.pre, %entry ], [ %1, %for.body ] |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %conv = sext i16 %0 to i32 |
| %add = add nsw i32 %conv, 2 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %arrayidx2 = getelementptr inbounds i16, i16* %a, i64 %indvars.iv.next |
| %1 = load i16, i16* %arrayidx2 |
| %conv3 = sext i16 %1 to i32 |
| %mul = mul nsw i32 %add, %conv3 |
| %arrayidx5 = getelementptr inbounds i32, i32* %b, i64 %indvars.iv |
| store i32 %mul, i32* %arrayidx5 |
| %exitcond = icmp eq i64 %indvars.iv.next, %n |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret void |
| } |
| |
| ; Do not sink branches: While branches are if-converted and do not require |
| ; sinking, instructions with side effects (e.g. loads) conditioned by those |
| ; branches will become users of the condition bit after vectorization and would |
| ; need to be sunk if the loop is vectorized. |
| define void @do_not_sink_branch(i32 %x, i32* %in, i32* %out, i32 %tc) local_unnamed_addr #0 { |
| ; NO-SINK-AFTER-LABEL: do_not_sink_branch |
| ; NO-SINK-AFTER-NOT: vector.ph: |
| ; NO-SINK-AFTER: } |
| entry: |
| %cmp530 = icmp slt i32 0, %tc |
| br label %for.body4 |
| |
| for.body4: ; preds = %cond.end, %entry |
| %indvars.iv = phi i32 [ 0, %entry ], [ %indvars.iv.next, %cond.end ] |
| %cmp534 = phi i1 [ %cmp530, %entry ], [ %cmp5, %cond.end ] |
| br i1 %cmp534, label %cond.true, label %cond.end |
| |
| cond.true: ; preds = %for.body4 |
| %arrayidx7 = getelementptr inbounds i32, i32* %in, i32 %indvars.iv |
| %in.val = load i32, i32* %arrayidx7, align 4 |
| br label %cond.end |
| |
| cond.end: ; preds = %for.body4, %cond.true |
| %cond = phi i32 [ %in.val, %cond.true ], [ 0, %for.body4 ] |
| %arrayidx8 = getelementptr inbounds i32, i32* %out, i32 %indvars.iv |
| store i32 %cond, i32* %arrayidx8, align 4 |
| %indvars.iv.next = add nuw nsw i32 %indvars.iv, 1 |
| %cmp5 = icmp slt i32 %indvars.iv.next, %tc |
| %exitcond = icmp eq i32 %indvars.iv.next, %x |
| br i1 %exitcond, label %for.end12.loopexit, label %for.body4 |
| |
| for.end12.loopexit: ; preds = %cond.end |
| ret void |
| } |
| |
| ; Dead instructions, like the exit condition are not part of the actual VPlan |
| ; and do not need to be sunk. PR44634. |
| define void @sink_dead_inst() { |
| ; SINK-AFTER-LABEL: define void @sink_dead_inst( |
| ; SINK-AFTER-LABEL: vector.body: ; preds = %vector.body, %vector.ph |
| ; SINK-AFTER-NEXT: %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ] |
| ; SINK-AFTER-NEXT: %vec.ind = phi <4 x i16> [ <i16 -27, i16 -26, i16 -25, i16 -24>, %vector.ph ], [ %vec.ind.next, %vector.body ] |
| ; SINK-AFTER-NEXT: %vector.recur = phi <4 x i16> [ <i16 poison, i16 poison, i16 poison, i16 0>, %vector.ph ], [ %3, %vector.body ] |
| ; SINK-AFTER-NEXT: %vector.recur1 = phi <4 x i32> [ <i32 poison, i32 poison, i32 poison, i32 -27>, %vector.ph ], [ %1, %vector.body ] |
| ; SINK-AFTER-NEXT: %0 = add <4 x i16> %vec.ind, <i16 1, i16 1, i16 1, i16 1> |
| ; SINK-AFTER-NEXT: %1 = zext <4 x i16> %0 to <4 x i32> |
| ; SINK-AFTER-NEXT: %2 = shufflevector <4 x i32> %vector.recur1, <4 x i32> %1, <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; SINK-AFTER-NEXT: %3 = add <4 x i16> %0, <i16 5, i16 5, i16 5, i16 5> |
| ; SINK-AFTER-NEXT: %4 = shufflevector <4 x i16> %vector.recur, <4 x i16> %3, <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; SINK-AFTER-NEXT: %5 = sub <4 x i16> %4, <i16 10, i16 10, i16 10, i16 10> |
| ; SINK-AFTER-NEXT: %index.next = add nuw i32 %index, 4 |
| ; SINK-AFTER-NEXT: %vec.ind.next = add <4 x i16> %vec.ind, <i16 4, i16 4, i16 4, i16 4> |
| ; SINK-AFTER-NEXT: %6 = icmp eq i32 %index.next, 40 |
| ; SINK-AFTER-NEXT: br i1 %6, label %middle.block, label %vector.body, !llvm.loop !50 |
| ; |
| entry: |
| br label %for.cond |
| |
| for.cond: |
| %iv = phi i16 [ -27, %entry ], [ %iv.next, %for.cond ] |
| %rec.1 = phi i16 [ 0, %entry ], [ %rec.1.prev, %for.cond ] |
| %rec.2 = phi i32 [ -27, %entry ], [ %rec.2.prev, %for.cond ] |
| %use.rec.1 = sub i16 %rec.1, 10 |
| %cmp = icmp eq i32 %rec.2, 15 |
| %iv.next = add i16 %iv, 1 |
| %rec.2.prev = zext i16 %iv.next to i32 |
| %rec.1.prev = add i16 %iv.next, 5 |
| br i1 %cmp, label %for.end, label %for.cond |
| |
| for.end: |
| ret void |
| } |
| |
| define i32 @sink_into_replication_region(i32 %y) { |
| ; CHECK-LABEL: @sink_into_replication_region( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[Y:%.*]], 1 |
| ; CHECK-NEXT: [[SMIN:%.*]] = call i32 @llvm.smin.i32(i32 [[Y]], i32 1) |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[TMP0]], [[SMIN]] |
| ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[N_RND_UP:%.*]] = add i32 [[TMP1]], 3 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = and i32 [[N_RND_UP]], -4 |
| ; CHECK-NEXT: [[TRIP_COUNT_MINUS_1:%.*]] = add i32 [[TMP1]], -1 |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i32> poison, i32 [[TRIP_COUNT_MINUS_1]], i32 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT]], <4 x i32> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_UDIV_CONTINUE9:%.*]] ] |
| ; CHECK-NEXT: [[VECTOR_RECUR:%.*]] = phi <4 x i32> [ <i32 poison, i32 poison, i32 poison, i32 0>, [[VECTOR_PH]] ], [ [[TMP21:%.*]], [[PRED_UDIV_CONTINUE9]] ] |
| ; CHECK-NEXT: [[VEC_PHI1:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP23:%.*]], [[PRED_UDIV_CONTINUE9]] ] |
| ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = sub i32 [[Y]], [[INDEX]] |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x i32> poison, i32 [[INDEX]], i32 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT2]], <4 x i32> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[VEC_IV:%.*]] = or <4 x i32> [[BROADCAST_SPLAT3]], <i32 0, i32 1, i32 2, i32 3> |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp ule <4 x i32> [[VEC_IV]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = extractelement <4 x i1> [[TMP2]], i32 0 |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[PRED_UDIV_IF:%.*]], label [[PRED_UDIV_CONTINUE:%.*]] |
| ; CHECK: pred.udiv.if: |
| ; CHECK-NEXT: [[TMP4:%.*]] = udiv i32 219220132, [[OFFSET_IDX]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = insertelement <4 x i32> poison, i32 [[TMP4]], i32 0 |
| ; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE]] |
| ; CHECK: pred.udiv.continue: |
| ; CHECK-NEXT: [[TMP6:%.*]] = phi <4 x i32> [ poison, [[VECTOR_BODY]] ], [ [[TMP5]], [[PRED_UDIV_IF]] ] |
| ; CHECK-NEXT: [[TMP7:%.*]] = extractelement <4 x i1> [[TMP2]], i32 1 |
| ; CHECK-NEXT: br i1 [[TMP7]], label [[PRED_UDIV_IF4:%.*]], label [[PRED_UDIV_CONTINUE5:%.*]] |
| ; CHECK: pred.udiv.if3: |
| ; CHECK-NEXT: [[TMP8:%.*]] = add i32 [[OFFSET_IDX]], -1 |
| ; CHECK-NEXT: [[TMP9:%.*]] = udiv i32 219220132, [[TMP8]] |
| ; CHECK-NEXT: [[TMP10:%.*]] = insertelement <4 x i32> [[TMP6]], i32 [[TMP9]], i32 1 |
| ; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE5]] |
| ; CHECK: pred.udiv.continue4: |
| ; CHECK-NEXT: [[TMP11:%.*]] = phi <4 x i32> [ [[TMP6]], [[PRED_UDIV_CONTINUE]] ], [ [[TMP10]], [[PRED_UDIV_IF4]] ] |
| ; CHECK-NEXT: [[TMP12:%.*]] = extractelement <4 x i1> [[TMP2]], i32 2 |
| ; CHECK-NEXT: br i1 [[TMP12]], label [[PRED_UDIV_IF6:%.*]], label [[PRED_UDIV_CONTINUE7:%.*]] |
| ; CHECK: pred.udiv.if5: |
| ; CHECK-NEXT: [[TMP13:%.*]] = add i32 [[OFFSET_IDX]], -2 |
| ; CHECK-NEXT: [[TMP14:%.*]] = udiv i32 219220132, [[TMP13]] |
| ; CHECK-NEXT: [[TMP15:%.*]] = insertelement <4 x i32> [[TMP11]], i32 [[TMP14]], i32 2 |
| ; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE7]] |
| ; CHECK: pred.udiv.continue6: |
| ; CHECK-NEXT: [[TMP16:%.*]] = phi <4 x i32> [ [[TMP11]], [[PRED_UDIV_CONTINUE5]] ], [ [[TMP15]], [[PRED_UDIV_IF6]] ] |
| ; CHECK-NEXT: [[TMP17:%.*]] = extractelement <4 x i1> [[TMP2]], i32 3 |
| ; CHECK-NEXT: br i1 [[TMP17]], label [[PRED_UDIV_IF8:%.*]], label [[PRED_UDIV_CONTINUE9]] |
| ; CHECK: pred.udiv.if7: |
| ; CHECK-NEXT: [[TMP18:%.*]] = add i32 [[OFFSET_IDX]], -3 |
| ; CHECK-NEXT: [[TMP19:%.*]] = udiv i32 219220132, [[TMP18]] |
| ; CHECK-NEXT: [[TMP20:%.*]] = insertelement <4 x i32> [[TMP16]], i32 [[TMP19]], i32 3 |
| ; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE9]] |
| ; CHECK: pred.udiv.continue8: |
| ; CHECK-NEXT: [[TMP21]] = phi <4 x i32> [ [[TMP16]], [[PRED_UDIV_CONTINUE7]] ], [ [[TMP20]], [[PRED_UDIV_IF8]] ] |
| ; CHECK-NEXT: [[TMP22:%.*]] = shufflevector <4 x i32> [[VECTOR_RECUR]], <4 x i32> [[TMP21]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; CHECK-NEXT: [[TMP23]] = add <4 x i32> [[VEC_PHI1]], [[TMP22]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i32 [[INDEX]], 4 |
| ; CHECK-NEXT: [[TMP24:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !prof !52, [[LOOP46:!llvm.loop !.*]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[TMP25:%.*]] = select <4 x i1> [[TMP2]], <4 x i32> [[TMP23]], <4 x i32> [[VEC_PHI1]] |
| ; CHECK-NEXT: [[TMP26:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP25]]) |
| ; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: br label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[TMP:%.*]] = phi i32 [ undef, [[BB2]] ], [ [[TMP26]], [[MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: ret i32 [[TMP]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br i1 undef, label [[BB1]], label [[BB2]], !prof !54, [[LOOP48:!llvm.loop !.*]] |
| ; |
| bb: |
| br label %bb2 |
| |
| bb1: ; preds = %bb2 |
| %tmp = phi i32 [ %tmp6, %bb2 ] |
| ret i32 %tmp |
| |
| bb2: ; preds = %bb2, %bb |
| %tmp3 = phi i32 [ %tmp8, %bb2 ], [ %y, %bb ] |
| %tmp4 = phi i32 [ %tmp7, %bb2 ], [ 0, %bb ] |
| %tmp5 = phi i32 [ %tmp6, %bb2 ], [ 0, %bb ] |
| %tmp6 = add i32 %tmp5, %tmp4 |
| %tmp7 = udiv i32 219220132, %tmp3 |
| %tmp8 = add nsw i32 %tmp3, -1 |
| %tmp9 = icmp slt i32 %tmp3, 2 |
| br i1 %tmp9, label %bb1, label %bb2, !prof !2 |
| } |
| |
| define i32 @sink_into_replication_region_multiple(i32 *%x, i32 %y) { |
| ; CHECK-LABEL: @sink_into_replication_region_multiple( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[Y:%.*]], 1 |
| ; CHECK-NEXT: [[SMIN:%.*]] = call i32 @llvm.smin.i32(i32 [[Y]], i32 1) |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[TMP0]], [[SMIN]] |
| ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[N_RND_UP:%.*]] = add i32 [[TMP1]], 3 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = and i32 [[N_RND_UP]], -4 |
| ; CHECK-NEXT: [[TRIP_COUNT_MINUS_1:%.*]] = add i32 [[TMP1]], -1 |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i32> poison, i32 [[TRIP_COUNT_MINUS_1]], i32 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT]], <4 x i32> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_STORE_CONTINUE16:%.*]] ] |
| ; CHECK-NEXT: [[VEC_IND2:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT3:%.*]], [[PRED_STORE_CONTINUE16]] ] |
| ; CHECK-NEXT: [[VECTOR_RECUR:%.*]] = phi <4 x i32> [ <i32 poison, i32 poison, i32 poison, i32 0>, [[VECTOR_PH]] ], [ [[TMP21:%.*]], [[PRED_STORE_CONTINUE16]] ] |
| ; CHECK-NEXT: [[VEC_PHI4:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP23:%.*]], [[PRED_STORE_CONTINUE16]] ] |
| ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = sub i32 [[Y]], [[INDEX]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[OFFSET_IDX]], -1 |
| ; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[OFFSET_IDX]], -2 |
| ; CHECK-NEXT: [[TMP4:%.*]] = add i32 [[OFFSET_IDX]], -3 |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp ule <4 x i32> [[VEC_IND2]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = extractelement <4 x i1> [[TMP5]], i32 0 |
| ; CHECK-NEXT: br i1 [[TMP6]], label [[PRED_UDIV_IF:%.*]], label [[PRED_UDIV_CONTINUE:%.*]] |
| ; CHECK: pred.udiv.if: |
| ; CHECK-NEXT: [[TMP7:%.*]] = udiv i32 219220132, [[OFFSET_IDX]] |
| ; CHECK-NEXT: [[TMP8:%.*]] = insertelement <4 x i32> poison, i32 [[TMP7]], i32 0 |
| ; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE]] |
| ; CHECK: pred.udiv.continue: |
| ; CHECK-NEXT: [[TMP9:%.*]] = phi <4 x i32> [ poison, [[VECTOR_BODY]] ], [ [[TMP8]], [[PRED_UDIV_IF]] ] |
| ; CHECK-NEXT: [[TMP10:%.*]] = extractelement <4 x i1> [[TMP5]], i32 1 |
| ; CHECK-NEXT: br i1 [[TMP10]], label [[PRED_UDIV_IF5:%.*]], label [[PRED_UDIV_CONTINUE6:%.*]] |
| ; CHECK: pred.udiv.if4: |
| ; CHECK-NEXT: [[TMP11:%.*]] = udiv i32 219220132, [[TMP2]] |
| ; CHECK-NEXT: [[TMP12:%.*]] = insertelement <4 x i32> [[TMP9]], i32 [[TMP11]], i32 1 |
| ; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE6]] |
| ; CHECK: pred.udiv.continue5: |
| ; CHECK-NEXT: [[TMP13:%.*]] = phi <4 x i32> [ [[TMP9]], [[PRED_UDIV_CONTINUE]] ], [ [[TMP12]], [[PRED_UDIV_IF5]] ] |
| ; CHECK-NEXT: [[TMP14:%.*]] = extractelement <4 x i1> [[TMP5]], i32 2 |
| ; CHECK-NEXT: br i1 [[TMP14]], label [[PRED_UDIV_IF7:%.*]], label [[PRED_UDIV_CONTINUE8:%.*]] |
| ; CHECK: pred.udiv.if6: |
| ; CHECK-NEXT: [[TMP15:%.*]] = udiv i32 219220132, [[TMP3]] |
| ; CHECK-NEXT: [[TMP16:%.*]] = insertelement <4 x i32> [[TMP13]], i32 [[TMP15]], i32 2 |
| ; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE8]] |
| ; CHECK: pred.udiv.continue7: |
| ; CHECK-NEXT: [[TMP17:%.*]] = phi <4 x i32> [ [[TMP13]], [[PRED_UDIV_CONTINUE6]] ], [ [[TMP16]], [[PRED_UDIV_IF7]] ] |
| ; CHECK-NEXT: [[TMP18:%.*]] = extractelement <4 x i1> [[TMP5]], i32 3 |
| ; CHECK-NEXT: br i1 [[TMP18]], label [[PRED_UDIV_IF9:%.*]], label [[PRED_UDIV_CONTINUE10:%.*]] |
| ; CHECK: pred.udiv.if8: |
| ; CHECK-NEXT: [[TMP19:%.*]] = udiv i32 219220132, [[TMP4]] |
| ; CHECK-NEXT: [[TMP20:%.*]] = insertelement <4 x i32> [[TMP17]], i32 [[TMP19]], i32 3 |
| ; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE10]] |
| ; CHECK: pred.udiv.continue9: |
| ; CHECK-NEXT: [[TMP21]] = phi <4 x i32> [ [[TMP17]], [[PRED_UDIV_CONTINUE8]] ], [ [[TMP20]], [[PRED_UDIV_IF9]] ] |
| ; CHECK-NEXT: [[TMP22:%.*]] = shufflevector <4 x i32> [[VECTOR_RECUR]], <4 x i32> [[TMP21]], <4 x i32> <i32 3, i32 4, i32 5, i32 6> |
| ; CHECK-NEXT: [[TMP23]] = add <4 x i32> [[VEC_PHI4]], [[TMP22]] |
| ; CHECK-NEXT: [[TMP24:%.*]] = extractelement <4 x i1> [[TMP5]], i32 0 |
| ; CHECK-NEXT: br i1 [[TMP24]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]] |
| ; CHECK: pred.store.if: |
| ; CHECK-NEXT: [[TMP25:%.*]] = sext i32 [[INDEX]] to i64 |
| ; CHECK-NEXT: [[TMP26:%.*]] = getelementptr inbounds i32, i32* [[X:%.*]], i64 [[TMP25]] |
| ; CHECK-NEXT: store i32 [[OFFSET_IDX]], i32* [[TMP26]], align 4 |
| ; CHECK-NEXT: br label [[PRED_STORE_CONTINUE]] |
| ; CHECK: pred.store.continue: |
| ; CHECK-NEXT: [[TMP27:%.*]] = extractelement <4 x i1> [[TMP5]], i32 1 |
| ; CHECK-NEXT: br i1 [[TMP27]], label [[PRED_STORE_IF11:%.*]], label [[PRED_STORE_CONTINUE12:%.*]] |
| ; CHECK: pred.store.if10: |
| ; CHECK-NEXT: [[TMP28:%.*]] = or i32 [[INDEX]], 1 |
| ; CHECK-NEXT: [[TMP29:%.*]] = sext i32 [[TMP28]] to i64 |
| ; CHECK-NEXT: [[TMP30:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 [[TMP29]] |
| ; CHECK-NEXT: store i32 [[TMP2]], i32* [[TMP30]], align 4 |
| ; CHECK-NEXT: br label [[PRED_STORE_CONTINUE12]] |
| ; CHECK: pred.store.continue11: |
| ; CHECK-NEXT: [[TMP31:%.*]] = extractelement <4 x i1> [[TMP5]], i32 2 |
| ; CHECK-NEXT: br i1 [[TMP31]], label [[PRED_STORE_IF13:%.*]], label [[PRED_STORE_CONTINUE14:%.*]] |
| ; CHECK: pred.store.if12: |
| ; CHECK-NEXT: [[TMP32:%.*]] = or i32 [[INDEX]], 2 |
| ; CHECK-NEXT: [[TMP33:%.*]] = sext i32 [[TMP32]] to i64 |
| ; CHECK-NEXT: [[TMP34:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 [[TMP33]] |
| ; CHECK-NEXT: store i32 [[TMP3]], i32* [[TMP34]], align 4 |
| ; CHECK-NEXT: br label [[PRED_STORE_CONTINUE14]] |
| ; CHECK: pred.store.continue13: |
| ; CHECK-NEXT: [[TMP35:%.*]] = extractelement <4 x i1> [[TMP5]], i32 3 |
| ; CHECK-NEXT: br i1 [[TMP35]], label [[PRED_STORE_IF15:%.*]], label [[PRED_STORE_CONTINUE16]] |
| ; CHECK: pred.store.if14: |
| ; CHECK-NEXT: [[TMP36:%.*]] = or i32 [[INDEX]], 3 |
| ; CHECK-NEXT: [[TMP37:%.*]] = sext i32 [[TMP36]] to i64 |
| ; CHECK-NEXT: [[TMP38:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 [[TMP37]] |
| ; CHECK-NEXT: store i32 [[TMP4]], i32* [[TMP38]], align 4 |
| ; CHECK-NEXT: br label [[PRED_STORE_CONTINUE16]] |
| ; CHECK: pred.store.continue15: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i32 [[INDEX]], 4 |
| ; CHECK-NEXT: [[VEC_IND_NEXT3]] = add <4 x i32> [[VEC_IND2]], <i32 4, i32 4, i32 4, i32 4> |
| ; CHECK-NEXT: [[TMP39:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP39]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !prof !52, [[LOOP49:!llvm.loop !.*]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[TMP40:%.*]] = select <4 x i1> [[TMP5]], <4 x i32> [[TMP23]], <4 x i32> [[VEC_PHI4]] |
| ; CHECK-NEXT: [[TMP41:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP40]]) |
| ; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: br label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[TMP:%.*]] = phi i32 [ undef, [[BB2]] ], [ [[TMP41]], [[MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: ret i32 [[TMP]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br i1 undef, label [[BB1]], label [[BB2]], !prof !54, [[LOOP50:!llvm.loop !.*]] |
| ; |
| bb: |
| br label %bb2 |
| |
| bb1: ; preds = %bb2 |
| %tmp = phi i32 [ %tmp6, %bb2 ] |
| ret i32 %tmp |
| |
| bb2: ; preds = %bb2, %bb |
| %tmp3 = phi i32 [ %tmp8, %bb2 ], [ %y, %bb ] |
| %iv = phi i32 [ %iv.next, %bb2 ], [ 0, %bb ] |
| %tmp4 = phi i32 [ %tmp7, %bb2 ], [ 0, %bb ] |
| %tmp5 = phi i32 [ %tmp6, %bb2 ], [ 0, %bb ] |
| %g = getelementptr inbounds i32, i32* %x, i32 %iv |
| %tmp6 = add i32 %tmp5, %tmp4 |
| %tmp7 = udiv i32 219220132, %tmp3 |
| store i32 %tmp3, i32* %g, align 4 |
| %tmp8 = add nsw i32 %tmp3, -1 |
| %iv.next = add nsw i32 %iv, 1 |
| %tmp9 = icmp slt i32 %tmp3, 2 |
| br i1 %tmp9, label %bb1, label %bb2, !prof !2 |
| } |
| |
| ; %vec.dead will be marked as dead instruction in the vector loop and no recipe |
| ; will be created for it. Make sure a valid sink target is used. |
| define void @sink_after_dead_inst(i32* %A.ptr) { |
| ; CHECK-LABEL: @sink_after_dead_inst |
| ; CHECK-LABEL: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, %vector.ph ], [ [[INDEX_NEXT]], %vector.body ] |
| ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = zext i32 [[INDEX]] to i64 |
| ; CHECK-NEXT: [[SEXT:%.*]] = shl i64 [[OFFSET_IDX]], 48 |
| ; CHECK-NEXT: [[SHIFT:%.*]] = ashr exact i64 [[SEXT]], 48 |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, i32* %A.ptr, i64 [[SHIFT]] |
| ; CHECK-NEXT: [[CAST:%.*]] = bitcast i32* [[GEP]] to <4 x i32>* |
| ; CHECK-NEXT: store <4 x i32> zeroinitializer, <4 x i32>* [[CAST]], align 4 |
| ; CHECK-NEXT: [[INDEX_NEXT:%.*]] = add nuw i32 [[INDEX]], 4 |
| ; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[INDEX_NEXT]], 16 |
| ; CHECK-NEXT: br i1 [[EC]], label %middle.block, label %vector.body |
| |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i16 [ 0, %entry ], [ %iv.next, %loop ] |
| %for = phi i32 [ 0, %entry ], [ %for.prev, %loop ] |
| %cmp = icmp eq i32 %for, 15 |
| %C = icmp eq i1 %cmp, true |
| %vec.dead = and i1 %C, 1 |
| %iv.next = add i16 %iv, 1 |
| %B1 = or i16 %iv.next, %iv.next |
| %B3 = and i1 %cmp, %C |
| %for.prev = zext i16 %B1 to i32 |
| |
| %ext = zext i1 %B3 to i32 |
| %A.gep = getelementptr i32, i32* %A.ptr, i16 %iv |
| store i32 0, i32* %A.gep |
| br i1 %vec.dead, label %for.end, label %loop |
| |
| for.end: |
| ret void |
| } |
| |
| !2 = !{!"branch_weights", i32 1, i32 1} |