| ; RUN: opt -basicaa -loop-vectorize -S -mcpu=core-avx2 < %s | FileCheck %s |
| |
| ;float inc = 0.5; |
| ;void foo(float *A, unsigned N) { |
| ; |
| ; for (unsigned i=0; i<N; i++){ |
| ; A[i] += inc; |
| ; } |
| ;} |
| |
| ; CHECK-LABEL: foo |
| ; CHECK: vector.body |
| ; CHECK: load <8 x float> |
| ; CHECK: fadd <8 x float> |
| ; CHECK: store <8 x float> |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @inc = global float 5.000000e-01, align 4 |
| |
| define void @foo(float* nocapture %A, i32 %N) #0 { |
| entry: |
| %cmp3 = icmp eq i32 %N, 0 |
| br i1 %cmp3, label %for.end, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] |
| %0 = load float, float* @inc, align 4 |
| %arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv |
| %1 = load float, float* %arrayidx, align 4 |
| %add = fadd float %0, %1 |
| store float %add, float* %arrayidx, align 4 |
| %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.end.loopexit, label %for.body |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void |
| } |