1 ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
3 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"
4 target triple = "x86_64-apple-macosx10.8.0"
6 ; We are vectorizing with 6 runtime checks.
10 define i32 @func1x6(i32* nocapture %out, i32* nocapture %A, i32* nocapture %B, i32* nocapture %C, i32* nocapture %D, i32* nocapture %E, i32* nocapture %F) {
14 for.body: ; preds = %for.body, %entry
15 %i.016 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
16 %arrayidx = getelementptr inbounds i32* %A, i64 %i.016
17 %0 = load i32* %arrayidx, align 4
18 %arrayidx1 = getelementptr inbounds i32* %B, i64 %i.016
19 %1 = load i32* %arrayidx1, align 4
20 %add = add nsw i32 %1, %0
21 %arrayidx2 = getelementptr inbounds i32* %C, i64 %i.016
22 %2 = load i32* %arrayidx2, align 4
23 %add3 = add nsw i32 %add, %2
24 %arrayidx4 = getelementptr inbounds i32* %E, i64 %i.016
25 %3 = load i32* %arrayidx4, align 4
26 %add5 = add nsw i32 %add3, %3
27 %arrayidx6 = getelementptr inbounds i32* %F, i64 %i.016
28 %4 = load i32* %arrayidx6, align 4
29 %add7 = add nsw i32 %add5, %4
30 %arrayidx8 = getelementptr inbounds i32* %out, i64 %i.016
31 store i32 %add7, i32* %arrayidx8, align 4
32 %inc = add i64 %i.016, 1
33 %exitcond = icmp eq i64 %inc, 256
34 br i1 %exitcond, label %for.end, label %for.body
36 for.end: ; preds = %for.body
40 ; We are not vectorizing with 12 runtime checks.
41 ;CHECK-LABEL: func2x6(
44 define i32 @func2x6(i32* nocapture %out, i32* nocapture %out2, i32* nocapture %A, i32* nocapture %B, i32* nocapture %C, i32* nocapture %D, i32* nocapture %E, i32* nocapture %F) {
48 for.body: ; preds = %for.body, %entry
49 %i.037 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
50 %arrayidx = getelementptr inbounds i32* %A, i64 %i.037
51 %0 = load i32* %arrayidx, align 4
52 %arrayidx1 = getelementptr inbounds i32* %B, i64 %i.037
53 %1 = load i32* %arrayidx1, align 4
54 %add = add nsw i32 %1, %0
55 %arrayidx2 = getelementptr inbounds i32* %C, i64 %i.037
56 %2 = load i32* %arrayidx2, align 4
57 %add3 = add nsw i32 %add, %2
58 %arrayidx4 = getelementptr inbounds i32* %E, i64 %i.037
59 %3 = load i32* %arrayidx4, align 4
60 %add5 = add nsw i32 %add3, %3
61 %arrayidx6 = getelementptr inbounds i32* %F, i64 %i.037
62 %4 = load i32* %arrayidx6, align 4
63 %add7 = add nsw i32 %add5, %4
64 %arrayidx8 = getelementptr inbounds i32* %out, i64 %i.037
65 store i32 %add7, i32* %arrayidx8, align 4
66 %5 = load i32* %arrayidx, align 4
67 %6 = load i32* %arrayidx1, align 4
68 %add11 = add nsw i32 %6, %5
69 %7 = load i32* %arrayidx2, align 4
70 %add13 = add nsw i32 %add11, %7
71 %8 = load i32* %arrayidx4, align 4
72 %add15 = add nsw i32 %add13, %8
73 %9 = load i32* %arrayidx6, align 4
74 %add17 = add nsw i32 %add15, %9
75 %arrayidx18 = getelementptr inbounds i32* %out2, i64 %i.037
76 store i32 %add17, i32* %arrayidx18, align 4
77 %inc = add i64 %i.037, 1
78 %exitcond = icmp eq i64 %inc, 256
79 br i1 %exitcond, label %for.end, label %for.body
81 for.end: ; preds = %for.body