| ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -dce -instcombine -S | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64--linux-gnu" |
| |
| ; CHECK-LABEL: @reduction_i8 |
| ; |
| ; char reduction_i8(char *a, char *b, int n) { |
| ; char sum = 0; |
| ; for (int i = 0; i < n; ++i) |
| ; sum += (a[i] + b[i]); |
| ; return sum; |
| ; } |
| ; |
| ; CHECK: vector.body: |
| ; CHECK: phi <16 x i8> |
| ; CHECK: load <16 x i8> |
| ; CHECK: load <16 x i8> |
| ; CHECK: add <16 x i8> |
| ; CHECK: add <16 x i8> |
| ; |
| ; CHECK: middle.block: |
| ; CHECK: [[Rdx:%[a-zA-Z0-9.]+]] = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> |
| ; CHECK: zext i8 [[Rdx]] to i32 |
| ; |
| define i8 @reduction_i8(i8* nocapture readonly %a, i8* nocapture readonly %b, i32 %n) { |
| entry: |
| %cmp.12 = icmp sgt i32 %n, 0 |
| br i1 %cmp.12, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: |
| br label %for.body |
| |
| for.cond.for.cond.cleanup_crit_edge: |
| %add5.lcssa = phi i32 [ %add5, %for.body ] |
| %conv6 = trunc i32 %add5.lcssa to i8 |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: |
| %sum.0.lcssa = phi i8 [ %conv6, %for.cond.for.cond.cleanup_crit_edge ], [ 0, %entry ] |
| ret i8 %sum.0.lcssa |
| |
| for.body: |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] |
| %sum.013 = phi i32 [ %add5, %for.body ], [ 0, %for.body.preheader ] |
| %arrayidx = getelementptr inbounds i8, i8* %a, i64 %indvars.iv |
| %0 = load i8, i8* %arrayidx, align 1 |
| %conv = zext i8 %0 to i32 |
| %arrayidx2 = getelementptr inbounds i8, i8* %b, i64 %indvars.iv |
| %1 = load i8, i8* %arrayidx2, align 1 |
| %conv3 = zext i8 %1 to i32 |
| %conv4 = and i32 %sum.013, 255 |
| %add = add nuw nsw i32 %conv, %conv4 |
| %add5 = add nuw nsw i32 %add, %conv3 |
| %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.for.cond.cleanup_crit_edge, label %for.body |
| } |
| |
| ; CHECK-LABEL: @reduction_i16_1 |
| ; |
| ; short reduction_i16_1(short *a, short *b, int n) { |
| ; short sum = 0; |
| ; for (int i = 0; i < n; ++i) |
| ; sum += (a[i] + b[i]); |
| ; return sum; |
| ; } |
| ; |
| ; CHECK: vector.body: |
| ; CHECK: phi <8 x i16> |
| ; CHECK: load <8 x i16> |
| ; CHECK: load <8 x i16> |
| ; CHECK: add <8 x i16> |
| ; CHECK: add <8 x i16> |
| ; |
| ; CHECK: middle.block: |
| ; CHECK: [[Rdx:%[a-zA-Z0-9.]+]] = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> |
| ; CHECK: zext i16 [[Rdx]] to i32 |
| ; |
| define i16 @reduction_i16_1(i16* nocapture readonly %a, i16* nocapture readonly %b, i32 %n) { |
| entry: |
| %cmp.16 = icmp sgt i32 %n, 0 |
| br i1 %cmp.16, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: |
| br label %for.body |
| |
| for.cond.for.cond.cleanup_crit_edge: |
| %add5.lcssa = phi i32 [ %add5, %for.body ] |
| %conv6 = trunc i32 %add5.lcssa to i16 |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: |
| %sum.0.lcssa = phi i16 [ %conv6, %for.cond.for.cond.cleanup_crit_edge ], [ 0, %entry ] |
| ret i16 %sum.0.lcssa |
| |
| for.body: |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] |
| %sum.017 = phi i32 [ %add5, %for.body ], [ 0, %for.body.preheader ] |
| %arrayidx = getelementptr inbounds i16, i16* %a, i64 %indvars.iv |
| %0 = load i16, i16* %arrayidx, align 2 |
| %conv.14 = zext i16 %0 to i32 |
| %arrayidx2 = getelementptr inbounds i16, i16* %b, i64 %indvars.iv |
| %1 = load i16, i16* %arrayidx2, align 2 |
| %conv3.15 = zext i16 %1 to i32 |
| %conv4.13 = and i32 %sum.017, 65535 |
| %add = add nuw nsw i32 %conv.14, %conv4.13 |
| %add5 = add nuw nsw i32 %add, %conv3.15 |
| %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.for.cond.cleanup_crit_edge, label %for.body |
| } |
| |
| ; CHECK-LABEL: @reduction_i16_2 |
| ; |
| ; short reduction_i16_2(char *a, char *b, int n) { |
| ; short sum = 0; |
| ; for (int i = 0; i < n; ++i) |
| ; sum += (a[i] + b[i]); |
| ; return sum; |
| ; } |
| ; |
| ; CHECK: vector.body: |
| ; CHECK: phi <8 x i16> |
| ; CHECK: [[Ld1:%[a-zA-Z0-9.]+]] = load <8 x i8> |
| ; CHECK: zext <8 x i8> [[Ld1]] to <8 x i16> |
| ; CHECK: [[Ld2:%[a-zA-Z0-9.]+]] = load <8 x i8> |
| ; CHECK: zext <8 x i8> [[Ld2]] to <8 x i16> |
| ; CHECK: add <8 x i16> |
| ; CHECK: add <8 x i16> |
| ; |
| ; CHECK: middle.block: |
| ; CHECK: [[Rdx:%[a-zA-Z0-9.]+]] = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> |
| ; CHECK: zext i16 [[Rdx]] to i32 |
| ; |
| define i16 @reduction_i16_2(i8* nocapture readonly %a, i8* nocapture readonly %b, i32 %n) { |
| entry: |
| %cmp.14 = icmp sgt i32 %n, 0 |
| br i1 %cmp.14, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: |
| br label %for.body |
| |
| for.cond.for.cond.cleanup_crit_edge: |
| %add5.lcssa = phi i32 [ %add5, %for.body ] |
| %conv6 = trunc i32 %add5.lcssa to i16 |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: |
| %sum.0.lcssa = phi i16 [ %conv6, %for.cond.for.cond.cleanup_crit_edge ], [ 0, %entry ] |
| ret i16 %sum.0.lcssa |
| |
| for.body: |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] |
| %sum.015 = phi i32 [ %add5, %for.body ], [ 0, %for.body.preheader ] |
| %arrayidx = getelementptr inbounds i8, i8* %a, i64 %indvars.iv |
| %0 = load i8, i8* %arrayidx, align 1 |
| %conv = zext i8 %0 to i32 |
| %arrayidx2 = getelementptr inbounds i8, i8* %b, i64 %indvars.iv |
| %1 = load i8, i8* %arrayidx2, align 1 |
| %conv3 = zext i8 %1 to i32 |
| %conv4.13 = and i32 %sum.015, 65535 |
| %add = add nuw nsw i32 %conv, %conv4.13 |
| %add5 = add nuw nsw i32 %add, %conv3 |
| %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.for.cond.cleanup_crit_edge, label %for.body |
| } |