| ; REQUIRES: asserts |
| ; RUN: opt < %s -loop-vectorize -debug -disable-output -force-ordered-reductions=true -hints-allow-reordering=false \ |
| ; RUN: -scalable-vectorization=on -force-vector-width=4 -force-vector-interleave=1 -S 2>&1 | FileCheck %s --check-prefix=CHECK-VF4 |
| ; RUN: opt < %s -loop-vectorize -debug -disable-output -force-ordered-reductions=true -hints-allow-reordering=false \ |
| ; RUN: -scalable-vectorization=on -force-vector-width=8 -force-vector-interleave=1 -S 2>&1 | FileCheck %s --check-prefix=CHECK-VF8 |
| ; RUN: opt < %s -loop-vectorize -debug -disable-output -force-ordered-reductions=true -hints-allow-reordering=false \ |
| ; RUN: -scalable-vectorization=on -force-vector-width=4 -force-vector-interleave=1 -mcpu=neoverse-n2 -S 2>&1 | FileCheck %s --check-prefix=CHECK-VF4-CPU-NEOVERSE-N2 |
| |
| target triple="aarch64-unknown-linux-gnu" |
| |
| ; CHECK-VF4: Found an estimated cost of 16 for VF vscale x 4 For instruction: %add = fadd float %0, %sum.07 |
| ; CHECK-VF8: Found an estimated cost of 32 for VF vscale x 8 For instruction: %add = fadd float %0, %sum.07 |
| ; CHECK-VF4-CPU-NEOVERSE-N2: Found an estimated cost of 8 for VF vscale x 4 For instruction: %add = fadd float %0, %sum.07 |
| |
| define float @fadd_strict32(float* noalias nocapture readonly %a, i64 %n) #0 { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ] |
| %sum.07 = phi float [ 0.000000e+00, %entry ], [ %add, %for.body ] |
| %arrayidx = getelementptr inbounds float, float* %a, i64 %iv |
| %0 = load float, float* %arrayidx, align 4 |
| %add = fadd float %0, %sum.07 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, %n |
| br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0 |
| |
| for.end: |
| ret float %add |
| } |
| |
| |
| ; CHECK-VF4: Found an estimated cost of 16 for VF vscale x 4 For instruction: %add = fadd double %0, %sum.07 |
| ; CHECK-VF8: Found an estimated cost of 32 for VF vscale x 8 For instruction: %add = fadd double %0, %sum.07 |
| ; CHECK-VF4-CPU-NEOVERSE-N2: Found an estimated cost of 8 for VF vscale x 4 For instruction: %add = fadd double %0, %sum.07 |
| |
| define double @fadd_strict64(double* noalias nocapture readonly %a, i64 %n) #0 { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ] |
| %sum.07 = phi double [ 0.000000e+00, %entry ], [ %add, %for.body ] |
| %arrayidx = getelementptr inbounds double, double* %a, i64 %iv |
| %0 = load double, double* %arrayidx, align 4 |
| %add = fadd double %0, %sum.07 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, %n |
| br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0 |
| |
| for.end: |
| ret double %add |
| } |
| |
| attributes #0 = { "target-features"="+sve" vscale_range(0, 16) } |
| |
| !0 = distinct !{!0, !1} |
| !1 = !{!"llvm.loop.vectorize.scalable.enable", i1 true} |