1 ; RUN: opt < %s -passes=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"
13 define void @vectorized(ptr nocapture %a, i64 %size) {
15 %cmp1 = icmp sle i64 %size, 0
16 %cmp21 = icmp sgt i64 0, %size
17 %or.cond = or i1 %cmp1, %cmp21
18 br i1 %or.cond, label %for.end, label %for.body
20 for.body: ; preds = %entry, %for.body
21 %indvars.iv2 = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
22 %arrayidx = getelementptr inbounds float, ptr %a, i64 %indvars.iv2
23 %0 = load float, ptr %arrayidx, align 4
24 %mul = fmul float %0, %0
25 store float %mul, ptr %arrayidx, align 4
26 %indvars.iv.next = add nuw nsw i64 %indvars.iv2, 1
27 %cmp2 = icmp sgt i64 %indvars.iv.next, %size
28 br i1 %cmp2, label %for.end, label %for.body
30 for.end: ; preds = %entry, %for.body
34 define void @not_vectorized(ptr nocapture %a, i64 %size) {
36 %cmp1 = icmp sle i64 %size, 0
37 %cmp21 = icmp sgt i64 0, %size
38 %or.cond = or i1 %cmp1, %cmp21
39 br i1 %or.cond, label %for.end, label %for.body
41 for.body: ; preds = %entry, %for.body
42 %indvars.iv2 = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
43 %0 = add nsw i64 %indvars.iv2, -5
44 %arrayidx = getelementptr inbounds float, ptr %a, i64 %0
45 %1 = load float, ptr %arrayidx, align 4
46 %2 = add nsw i64 %indvars.iv2, 2
47 %arrayidx2 = getelementptr inbounds float, ptr %a, i64 %2
48 %3 = load float, ptr %arrayidx2, align 4
49 %mul = fmul float %1, %3
50 %arrayidx4 = getelementptr inbounds float, ptr %a, i64 %indvars.iv2
51 store float %mul, ptr %arrayidx4, align 4
52 %indvars.iv.next = add nuw nsw i64 %indvars.iv2, 1
53 %cmp2 = icmp sgt i64 %indvars.iv.next, %size
54 br i1 %cmp2, label %for.end, label %for.body
56 for.end: ; preds = %entry, %for.body