| ; RUN: opt -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S < %s | FileCheck %s |
| @a = common global [128 x i32] zeroinitializer, align 16 |
| |
| ;; Must not vectorize division reduction. Division is lossy. |
| define i32 @g() { |
| entry: |
| br label %for.body |
| |
| for.body: |
| ; CHECK-LABEL: @g( |
| ; CHECK-NOT: sdiv <2 x i32> |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %r.05 = phi i32 [ 80, %entry ], [ %div, %for.body ] |
| %arrayidx = getelementptr inbounds [128 x i32], [128 x i32]* @a, i64 0, i64 %indvars.iv |
| %0 = load i32, i32* %arrayidx, align 4 |
| %div = sdiv i32 %r.05, %0 |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, 1024 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret i32 %div |
| } |
