| ; RUN: opt -S -O3 -force-vector-width=2 -force-vector-interleave=1 < %s | FileCheck --check-prefix=LOOPVEC %s |
| ; RUN: opt -S -O3 -vectorize-loops=false -force-vector-width=2 -force-vector-interleave=1 < %s | FileCheck --check-prefix=NOLOOPVEC %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" |
| |
| ; Make sure we can disable vectorization in opt. |
| |
| ; LOOPVEC: add <2 x i32> |
| ; NOLOOPVEC-NOT: add <2 x i32> |
| |
| define i32 @vect(i32* %a) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %red.05 = phi i32 [ 0, %entry ], [ %add, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv |
| %0 = load i32, i32* %arrayidx, align 4 |
| %add = add nsw i32 %0, %red.05 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond = icmp eq i64 %indvars.iv.next, 255 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret i32 %add |
| } |