1; RUN: opt %loadPolly -basic-aa -polly-codegen -polly-vectorizer=polly -S \
2; RUN: -polly-invariant-load-hoisting=true < %s | FileCheck %s
3
4;#define N 1024
5;float A[N];
6;float B[N];
7;
8;void simple_vec_const(void) {
9;  int i;
10;
11;  for (i = 0; i < 4; i++)
12;    B[i] = A[0];
13;}
14;int main()
15;{
16;  simple_vec_const();
17;  return A[42];
18;}
19
20target 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"
21
22@A = common global [1024 x float] zeroinitializer, align 16
23@B = common global [1024 x float] zeroinitializer, align 16
24
25define void @simple_vec_const() nounwind {
26; <label>:0
27  br label %1
28
29; <label>:1                                       ; preds = %4, %0
30  %indvar = phi i64 [ %indvar.next, %4 ], [ 0, %0 ]
31  %scevgep = getelementptr [1024 x float], [1024 x float]* @B, i64 0, i64 %indvar
32  %exitcond = icmp ne i64 %indvar, 4
33  br i1 %exitcond, label %2, label %5
34
35; <label>:2                                       ; preds = %1
36  %3 = load float, float* getelementptr inbounds ([1024 x float], [1024 x float]* @A, i64 0, i64 0), align 16
37  store float %3, float* %scevgep, align 4
38  br label %4
39
40; <label>:4                                       ; preds = %2
41  %indvar.next = add i64 %indvar, 1
42  br label %1
43
44; <label>:5                                       ; preds = %1
45  ret void
46}
47
48define i32 @main() nounwind {
49  call void @simple_vec_const()
50  %1 = load float, float* getelementptr inbounds ([1024 x float], [1024 x float]* @A, i64 0, i64 42), align 8
51  %2 = fptosi float %1 to i32
52  ret i32 %2
53}
54
55
56; CHECK:   %.load = load float, float* getelementptr inbounds ([1024 x float], [1024 x float]* @A, i32 0, i32 0)
57
58; CHECK: polly.stmt.:                                      ; preds = %polly.start
59; CHECK:   %_p.splatinsert = insertelement <4 x float> undef, float %.load, i32 0
60; CHECK:   %_p.splat = shufflevector <4 x float> %_p.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
61