| ; RUN: opt -loop-vectorize -dce -instcombine -S -force-vector-width=4 < %s 2>%t | FileCheck %s |
| |
| define void @inv_store_last_lane(i32* noalias nocapture %a, i32* noalias nocapture %inv, i32* noalias nocapture readonly %b, i64 %n) { |
| ; CHECK-LABEL: @inv_store_last_lane |
| ; CHECK: vector.body: |
| ; CHECK: store <4 x i32> %[[VEC_VAL:.*]], < |
| ; CHECK: middle.block: |
| ; CHECK: %{{.*}} = extractelement <4 x i32> %[[VEC_VAL]], i32 3 |
| |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %b, i64 %indvars.iv |
| %0 = load i32, i32* %arrayidx, align 4 |
| %mul = shl nsw i32 %0, 1 |
| %arrayidx2 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv |
| store i32 %mul, i32* %arrayidx2, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, %n |
| br i1 %exitcond.not, label %exit, label %for.body |
| |
| exit: ; preds = %for.body |
| %arrayidx5 = getelementptr inbounds i32, i32* %inv, i64 42 |
| store i32 %mul, i32* %arrayidx5, align 4 |
| ret void |
| } |
| |
| define float @ret_last_lane(float* noalias nocapture %a, float* noalias nocapture readonly %b, i64 %n) { |
| ; CHECK-LABEL: @ret_last_lane |
| ; CHECK: vector.body: |
| ; CHECK: store <4 x float> %[[VEC_VAL:.*]], < |
| ; CHECK: middle.block: |
| ; CHECK: %{{.*}} = extractelement <4 x float> %[[VEC_VAL]], i32 3 |
| |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv |
| %0 = load float, float* %arrayidx, align 4 |
| %mul = fmul float %0, 2.000000e+00 |
| %arrayidx2 = getelementptr inbounds float, float* %a, i64 %indvars.iv |
| store float %mul, float* %arrayidx2, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, %n |
| br i1 %exitcond.not, label %exit, label %for.body |
| |
| exit: ; preds = %for.body, %entry |
| ret float %mul |
| } |