1 ; RUN: opt < %s -loop-vectorize -force-vector-interleave=4 -force-vector-width=4 -debug-only=loop-vectorize -stats -S 2>&1 | FileCheck %s
5 ; We have 2 loops, one of them is vectorizable and the second one is not.
8 ; CHECK: 2 loop-vectorize - Number of loops analyzed for vectorization
9 ; CHECK: 1 loop-vectorize - Number of loops vectorized
11 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"
12 target triple = "x86_64-unknown-linux-gnu"
14 define void @vectorized(float* nocapture %a, i64 %size) {
16 %cmp1 = icmp sle i64 %size, 0
17 %cmp21 = icmp sgt i64 0, %size
18 %or.cond = or i1 %cmp1, %cmp21
19 br i1 %or.cond, label %for.end, label %for.body
21 for.body: ; preds = %entry, %for.body
22 %indvars.iv2 = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
23 %arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv2
24 %0 = load float* %arrayidx, align 4
25 %mul = fmul float %0, %0
26 store float %mul, float* %arrayidx, align 4
27 %indvars.iv.next = add nuw nsw i64 %indvars.iv2, 1
28 %cmp2 = icmp sgt i64 %indvars.iv.next, %size
29 br i1 %cmp2, label %for.end, label %for.body
31 for.end: ; preds = %entry, %for.body
35 define void @not_vectorized(float* nocapture %a, i64 %size) {
37 %cmp1 = icmp sle i64 %size, 0
38 %cmp21 = icmp sgt i64 0, %size
39 %or.cond = or i1 %cmp1, %cmp21
40 br i1 %or.cond, label %for.end, label %for.body
42 for.body: ; preds = %entry, %for.body
43 %indvars.iv2 = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
44 %0 = add nsw i64 %indvars.iv2, -5
45 %arrayidx = getelementptr inbounds float, float* %a, i64 %0
46 %1 = load float* %arrayidx, align 4
47 %2 = add nsw i64 %indvars.iv2, 2
48 %arrayidx2 = getelementptr inbounds float, float* %a, i64 %2
49 %3 = load float* %arrayidx2, align 4
50 %mul = fmul float %1, %3
51 %arrayidx4 = getelementptr inbounds float, float* %a, i64 %indvars.iv2
52 store float %mul, float* %arrayidx4, align 4
53 %indvars.iv.next = add nuw nsw i64 %indvars.iv2, 1
54 %cmp2 = icmp sgt i64 %indvars.iv.next, %size
55 br i1 %cmp2, label %for.end, label %for.body
57 for.end: ; preds = %entry, %for.body