| ; RUN: opt -slp-vectorizer -slp-threshold=-6 -S -pass-remarks-output=%t < %s | FileCheck %s |
| ; RUN: cat %t | FileCheck -check-prefix=YAML %s |
| ; RUN: opt -passes=slp-vectorizer -slp-threshold=-6 -S -pass-remarks-output=%t < %s | FileCheck %s |
| ; RUN: cat %t | FileCheck -check-prefix=YAML %s |
| |
| |
| ; FIXME: The threshold is changed to keep this test case a bit smaller. |
| ; The AArch64 cost model should not give such high costs to select statements. |
| |
| target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64--linux" |
| |
| ; CHECK-LABEL: test_select |
| ; CHECK: load <4 x i32> |
| ; CHECK: load <4 x i32> |
| ; CHECK: select <4 x i1> |
| |
| ; YAML: --- !Passed |
| ; YAML-NEXT: Pass: slp-vectorizer |
| ; YAML-NEXT: Name: VectorizedHorizontalReduction |
| ; YAML-NEXT: Function: test_select |
| ; YAML-NEXT: Args: |
| ; YAML-NEXT: - String: 'Vectorized horizontal reduction with cost ' |
| ; YAML-NEXT: - Cost: '-8' |
| ; YAML-NEXT: - String: ' and with tree size ' |
| ; YAML-NEXT: - TreeSize: '8' |
| |
| define i32 @test_select(i32* noalias nocapture readonly %blk1, i32* noalias nocapture readonly %blk2, i32 %lx, i32 %h) { |
| entry: |
| %cmp.22 = icmp sgt i32 %h, 0 |
| br i1 %cmp.22, label %for.body.lr.ph, label %for.end |
| |
| for.body.lr.ph: ; preds = %entry |
| %idx.ext = sext i32 %lx to i64 |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %for.body.lr.ph |
| %s.026 = phi i32 [ 0, %for.body.lr.ph ], [ %add27, %for.body ] |
| %j.025 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ] |
| %p2.024 = phi i32* [ %blk2, %for.body.lr.ph ], [ %add.ptr29, %for.body ] |
| %p1.023 = phi i32* [ %blk1, %for.body.lr.ph ], [ %add.ptr, %for.body ] |
| %0 = load i32, i32* %p1.023, align 4 |
| %1 = load i32, i32* %p2.024, align 4 |
| %sub = sub nsw i32 %0, %1 |
| %cmp2 = icmp slt i32 %sub, 0 |
| %sub3 = sub nsw i32 0, %sub |
| %sub3.sub = select i1 %cmp2, i32 %sub3, i32 %sub |
| %add = add nsw i32 %sub3.sub, %s.026 |
| %arrayidx4 = getelementptr inbounds i32, i32* %p1.023, i64 1 |
| %2 = load i32, i32* %arrayidx4, align 4 |
| %arrayidx5 = getelementptr inbounds i32, i32* %p2.024, i64 1 |
| %3 = load i32, i32* %arrayidx5, align 4 |
| %sub6 = sub nsw i32 %2, %3 |
| %cmp7 = icmp slt i32 %sub6, 0 |
| %sub9 = sub nsw i32 0, %sub6 |
| %v.1 = select i1 %cmp7, i32 %sub9, i32 %sub6 |
| %add11 = add nsw i32 %add, %v.1 |
| %arrayidx12 = getelementptr inbounds i32, i32* %p1.023, i64 2 |
| %4 = load i32, i32* %arrayidx12, align 4 |
| %arrayidx13 = getelementptr inbounds i32, i32* %p2.024, i64 2 |
| %5 = load i32, i32* %arrayidx13, align 4 |
| %sub14 = sub nsw i32 %4, %5 |
| %cmp15 = icmp slt i32 %sub14, 0 |
| %sub17 = sub nsw i32 0, %sub14 |
| %sub17.sub14 = select i1 %cmp15, i32 %sub17, i32 %sub14 |
| %add19 = add nsw i32 %add11, %sub17.sub14 |
| %arrayidx20 = getelementptr inbounds i32, i32* %p1.023, i64 3 |
| %6 = load i32, i32* %arrayidx20, align 4 |
| %arrayidx21 = getelementptr inbounds i32, i32* %p2.024, i64 3 |
| %7 = load i32, i32* %arrayidx21, align 4 |
| %sub22 = sub nsw i32 %6, %7 |
| %cmp23 = icmp slt i32 %sub22, 0 |
| %sub25 = sub nsw i32 0, %sub22 |
| %v.3 = select i1 %cmp23, i32 %sub25, i32 %sub22 |
| %add27 = add nsw i32 %add19, %v.3 |
| %add.ptr = getelementptr inbounds i32, i32* %p1.023, i64 %idx.ext |
| %add.ptr29 = getelementptr inbounds i32, i32* %p2.024, i64 %idx.ext |
| %inc = add nuw nsw i32 %j.025, 1 |
| %exitcond = icmp eq i32 %inc, %h |
| br i1 %exitcond, label %for.end.loopexit, label %for.body |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| %s.0.lcssa = phi i32 [ 0, %entry ], [ %add27, %for.end.loopexit ] |
| ret i32 %s.0.lcssa |
| } |
| |
| ;; Check whether SLP can find a reduction phi whose incoming blocks are not |
| ;; the same as the block containing the phi. |
| ;; |
| ;; Came from code like, |
| ;; |
| ;; int s = 0; |
| ;; for (int j = 0; j < h; j++) { |
| ;; s += p1[0] * p2[0] |
| ;; s += p1[1] * p2[1]; |
| ;; s += p1[2] * p2[2]; |
| ;; s += p1[3] * p2[3]; |
| ;; if (s >= lim) |
| ;; break; |
| ;; p1 += lx; |
| ;; p2 += lx; |
| ;; } |
| define i32 @reduction_with_br(i32* noalias nocapture readonly %blk1, i32* noalias nocapture readonly %blk2, i32 %lx, i32 %h, i32 %lim) { |
| ; CHECK-LABEL: reduction_with_br |
| ; CHECK: load <4 x i32> |
| ; CHECK: load <4 x i32> |
| ; CHECK: mul nsw <4 x i32> |
| |
| ; YAML: --- !Passed |
| ; YAML-NEXT: Pass: slp-vectorizer |
| ; YAML-NEXT: Name: VectorizedHorizontalReduction |
| ; YAML-NEXT: Function: reduction_with_br |
| ; YAML-NEXT: Args: |
| ; YAML-NEXT: - String: 'Vectorized horizontal reduction with cost ' |
| ; YAML-NEXT: - Cost: '-11' |
| ; YAML-NEXT: - String: ' and with tree size ' |
| ; YAML-NEXT: - TreeSize: '3' |
| |
| entry: |
| %cmp.16 = icmp sgt i32 %h, 0 |
| br i1 %cmp.16, label %for.body.lr.ph, label %for.end |
| |
| for.body.lr.ph: ; preds = %entry |
| %idx.ext = sext i32 %lx to i64 |
| br label %for.body |
| |
| for.body: ; preds = %for.body.lr.ph, %if.end |
| %s.020 = phi i32 [ 0, %for.body.lr.ph ], [ %add13, %if.end ] |
| %j.019 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %if.end ] |
| %p2.018 = phi i32* [ %blk2, %for.body.lr.ph ], [ %add.ptr16, %if.end ] |
| %p1.017 = phi i32* [ %blk1, %for.body.lr.ph ], [ %add.ptr, %if.end ] |
| %0 = load i32, i32* %p1.017, align 4 |
| %1 = load i32, i32* %p2.018, align 4 |
| %mul = mul nsw i32 %1, %0 |
| %add = add nsw i32 %mul, %s.020 |
| %arrayidx2 = getelementptr inbounds i32, i32* %p1.017, i64 1 |
| %2 = load i32, i32* %arrayidx2, align 4 |
| %arrayidx3 = getelementptr inbounds i32, i32* %p2.018, i64 1 |
| %3 = load i32, i32* %arrayidx3, align 4 |
| %mul4 = mul nsw i32 %3, %2 |
| %add5 = add nsw i32 %add, %mul4 |
| %arrayidx6 = getelementptr inbounds i32, i32* %p1.017, i64 2 |
| %4 = load i32, i32* %arrayidx6, align 4 |
| %arrayidx7 = getelementptr inbounds i32, i32* %p2.018, i64 2 |
| %5 = load i32, i32* %arrayidx7, align 4 |
| %mul8 = mul nsw i32 %5, %4 |
| %add9 = add nsw i32 %add5, %mul8 |
| %arrayidx10 = getelementptr inbounds i32, i32* %p1.017, i64 3 |
| %6 = load i32, i32* %arrayidx10, align 4 |
| %arrayidx11 = getelementptr inbounds i32, i32* %p2.018, i64 3 |
| %7 = load i32, i32* %arrayidx11, align 4 |
| %mul12 = mul nsw i32 %7, %6 |
| %add13 = add nsw i32 %add9, %mul12 |
| %cmp14 = icmp slt i32 %add13, %lim |
| br i1 %cmp14, label %if.end, label %for.end.loopexit |
| |
| if.end: ; preds = %for.body |
| %add.ptr = getelementptr inbounds i32, i32* %p1.017, i64 %idx.ext |
| %add.ptr16 = getelementptr inbounds i32, i32* %p2.018, i64 %idx.ext |
| %inc = add nuw nsw i32 %j.019, 1 |
| %cmp = icmp slt i32 %inc, %h |
| br i1 %cmp, label %for.body, label %for.end.loopexit |
| |
| for.end.loopexit: ; preds = %for.body, %if.end |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| %s.1 = phi i32 [ 0, %entry ], [ %add13, %for.end.loopexit ] |
| ret i32 %s.1 |
| } |
| |
| ; CHECK: test_unrolled_select |
| ; CHECK: load <8 x i8> |
| ; CHECK: load <8 x i8> |
| ; CHECK: select <8 x i1> |
| |
| ; YAML: --- !Passed |
| ; YAML-NEXT: Pass: slp-vectorizer |
| ; YAML-NEXT: Name: VectorizedHorizontalReduction |
| ; YAML-NEXT: Function: test_unrolled_select |
| ; YAML-NEXT: Args: |
| ; YAML-NEXT: - String: 'Vectorized horizontal reduction with cost ' |
| ; YAML-NEXT: - Cost: '-47' |
| ; YAML-NEXT: - String: ' and with tree size ' |
| ; YAML-NEXT: - TreeSize: '10' |
| |
| define i32 @test_unrolled_select(i8* noalias nocapture readonly %blk1, i8* noalias nocapture readonly %blk2, i32 %lx, i32 %h, i32 %lim) #0 { |
| entry: |
| %cmp.43 = icmp sgt i32 %h, 0 |
| br i1 %cmp.43, label %for.body.lr.ph, label %for.end |
| |
| for.body.lr.ph: ; preds = %entry |
| %idx.ext = sext i32 %lx to i64 |
| br label %for.body |
| |
| for.body: ; preds = %for.body.lr.ph, %if.end.86 |
| %s.047 = phi i32 [ 0, %for.body.lr.ph ], [ %add82, %if.end.86 ] |
| %j.046 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %if.end.86 ] |
| %p2.045 = phi i8* [ %blk2, %for.body.lr.ph ], [ %add.ptr88, %if.end.86 ] |
| %p1.044 = phi i8* [ %blk1, %for.body.lr.ph ], [ %add.ptr, %if.end.86 ] |
| %0 = load i8, i8* %p1.044, align 1 |
| %conv = zext i8 %0 to i32 |
| %1 = load i8, i8* %p2.045, align 1 |
| %conv2 = zext i8 %1 to i32 |
| %sub = sub nsw i32 %conv, %conv2 |
| %cmp3 = icmp slt i32 %sub, 0 |
| %sub5 = sub nsw i32 0, %sub |
| %sub5.sub = select i1 %cmp3, i32 %sub5, i32 %sub |
| %add = add nsw i32 %sub5.sub, %s.047 |
| %arrayidx6 = getelementptr inbounds i8, i8* %p1.044, i64 1 |
| %2 = load i8, i8* %arrayidx6, align 1 |
| %conv7 = zext i8 %2 to i32 |
| %arrayidx8 = getelementptr inbounds i8, i8* %p2.045, i64 1 |
| %3 = load i8, i8* %arrayidx8, align 1 |
| %conv9 = zext i8 %3 to i32 |
| %sub10 = sub nsw i32 %conv7, %conv9 |
| %cmp11 = icmp slt i32 %sub10, 0 |
| %sub14 = sub nsw i32 0, %sub10 |
| %v.1 = select i1 %cmp11, i32 %sub14, i32 %sub10 |
| %add16 = add nsw i32 %add, %v.1 |
| %arrayidx17 = getelementptr inbounds i8, i8* %p1.044, i64 2 |
| %4 = load i8, i8* %arrayidx17, align 1 |
| %conv18 = zext i8 %4 to i32 |
| %arrayidx19 = getelementptr inbounds i8, i8* %p2.045, i64 2 |
| %5 = load i8, i8* %arrayidx19, align 1 |
| %conv20 = zext i8 %5 to i32 |
| %sub21 = sub nsw i32 %conv18, %conv20 |
| %cmp22 = icmp slt i32 %sub21, 0 |
| %sub25 = sub nsw i32 0, %sub21 |
| %sub25.sub21 = select i1 %cmp22, i32 %sub25, i32 %sub21 |
| %add27 = add nsw i32 %add16, %sub25.sub21 |
| %arrayidx28 = getelementptr inbounds i8, i8* %p1.044, i64 3 |
| %6 = load i8, i8* %arrayidx28, align 1 |
| %conv29 = zext i8 %6 to i32 |
| %arrayidx30 = getelementptr inbounds i8, i8* %p2.045, i64 3 |
| %7 = load i8, i8* %arrayidx30, align 1 |
| %conv31 = zext i8 %7 to i32 |
| %sub32 = sub nsw i32 %conv29, %conv31 |
| %cmp33 = icmp slt i32 %sub32, 0 |
| %sub36 = sub nsw i32 0, %sub32 |
| %v.3 = select i1 %cmp33, i32 %sub36, i32 %sub32 |
| %add38 = add nsw i32 %add27, %v.3 |
| %arrayidx39 = getelementptr inbounds i8, i8* %p1.044, i64 4 |
| %8 = load i8, i8* %arrayidx39, align 1 |
| %conv40 = zext i8 %8 to i32 |
| %arrayidx41 = getelementptr inbounds i8, i8* %p2.045, i64 4 |
| %9 = load i8, i8* %arrayidx41, align 1 |
| %conv42 = zext i8 %9 to i32 |
| %sub43 = sub nsw i32 %conv40, %conv42 |
| %cmp44 = icmp slt i32 %sub43, 0 |
| %sub47 = sub nsw i32 0, %sub43 |
| %sub47.sub43 = select i1 %cmp44, i32 %sub47, i32 %sub43 |
| %add49 = add nsw i32 %add38, %sub47.sub43 |
| %arrayidx50 = getelementptr inbounds i8, i8* %p1.044, i64 5 |
| %10 = load i8, i8* %arrayidx50, align 1 |
| %conv51 = zext i8 %10 to i32 |
| %arrayidx52 = getelementptr inbounds i8, i8* %p2.045, i64 5 |
| %11 = load i8, i8* %arrayidx52, align 1 |
| %conv53 = zext i8 %11 to i32 |
| %sub54 = sub nsw i32 %conv51, %conv53 |
| %cmp55 = icmp slt i32 %sub54, 0 |
| %sub58 = sub nsw i32 0, %sub54 |
| %v.5 = select i1 %cmp55, i32 %sub58, i32 %sub54 |
| %add60 = add nsw i32 %add49, %v.5 |
| %arrayidx61 = getelementptr inbounds i8, i8* %p1.044, i64 6 |
| %12 = load i8, i8* %arrayidx61, align 1 |
| %conv62 = zext i8 %12 to i32 |
| %arrayidx63 = getelementptr inbounds i8, i8* %p2.045, i64 6 |
| %13 = load i8, i8* %arrayidx63, align 1 |
| %conv64 = zext i8 %13 to i32 |
| %sub65 = sub nsw i32 %conv62, %conv64 |
| %cmp66 = icmp slt i32 %sub65, 0 |
| %sub69 = sub nsw i32 0, %sub65 |
| %sub69.sub65 = select i1 %cmp66, i32 %sub69, i32 %sub65 |
| %add71 = add nsw i32 %add60, %sub69.sub65 |
| %arrayidx72 = getelementptr inbounds i8, i8* %p1.044, i64 7 |
| %14 = load i8, i8* %arrayidx72, align 1 |
| %conv73 = zext i8 %14 to i32 |
| %arrayidx74 = getelementptr inbounds i8, i8* %p2.045, i64 7 |
| %15 = load i8, i8* %arrayidx74, align 1 |
| %conv75 = zext i8 %15 to i32 |
| %sub76 = sub nsw i32 %conv73, %conv75 |
| %cmp77 = icmp slt i32 %sub76, 0 |
| %sub80 = sub nsw i32 0, %sub76 |
| %v.7 = select i1 %cmp77, i32 %sub80, i32 %sub76 |
| %add82 = add nsw i32 %add71, %v.7 |
| %cmp83 = icmp slt i32 %add82, %lim |
| br i1 %cmp83, label %if.end.86, label %for.end.loopexit |
| |
| if.end.86: ; preds = %for.body |
| %add.ptr = getelementptr inbounds i8, i8* %p1.044, i64 %idx.ext |
| %add.ptr88 = getelementptr inbounds i8, i8* %p2.045, i64 %idx.ext |
| %inc = add nuw nsw i32 %j.046, 1 |
| %cmp = icmp slt i32 %inc, %h |
| br i1 %cmp, label %for.body, label %for.end.loopexit |
| |
| for.end.loopexit: ; preds = %for.body, %if.end.86 |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| %s.1 = phi i32 [ 0, %entry ], [ %add82, %for.end.loopexit ] |
| ret i32 %s.1 |
| } |
| |