1; RUN: opt < %s  -loop-vectorize -mattr=+sse4.2 -debug-only=loop-vectorize 2>&1 -S | FileCheck %s
2; REQUIRES: asserts
3; Make sure we use the right select kind when querying select costs.
4
5target 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"
6target triple = "x86_64-apple-macosx10.8.0"
7
8@a = common global [2048 x i32] zeroinitializer, align 16
9@b = common global [2048 x i32] zeroinitializer, align 16
10@c = common global [2048 x i32] zeroinitializer, align 16
11
12; CHECK: Checking a loop in 'scalarselect'
13define void @scalarselect(i1 %cond) {
14  br label %1
15
16; <label>:1
17  %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
18  %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv
19  %3 = load i32, i32* %2, align 4
20  %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv
21  %5 = load i32, i32* %4, align 4
22  %6 = add nsw i32 %5, %3
23  %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv
24
25; CHECK: cost of 1 for VF 1 {{.*}}  select i1 %cond, i32 %6, i32 0
26; CHECK: cost of 2 for VF 2 {{.*}}  select i1 %cond, i32 %6, i32 0
27; CHECK: cost of 2 for VF 4 {{.*}}  select i1 %cond, i32 %6, i32 0
28
29  %sel = select i1 %cond, i32 %6, i32 zeroinitializer
30  store i32 %sel, i32* %7, align 4
31  %indvars.iv.next = add i64 %indvars.iv, 1
32  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
33  %exitcond = icmp eq i32 %lftr.wideiv, 256
34  br i1 %exitcond, label %8, label %1
35
36; <label>:8
37  ret void
38}
39
40; CHECK: Checking a loop in 'vectorselect'
41define void @vectorselect(i1 %cond) {
42  br label %1
43
44; <label>:1
45  %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
46  %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv
47  %3 = load i32, i32* %2, align 4
48  %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv
49  %5 = load i32, i32* %4, align 4
50  %6 = add nsw i32 %5, %3
51  %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv
52  %8 = icmp ult i64 %indvars.iv, 8
53
54; CHECK: cost of 1 for VF 1 {{.*}}  select i1 %8, i32 %6, i32 0
55; CHECK: cost of 2 for VF 2 {{.*}}  select i1 %8, i32 %6, i32 0
56; CHECK: cost of 2 for VF 4 {{.*}}  select i1 %8, i32 %6, i32 0
57
58  %sel = select i1 %8, i32 %6, i32 zeroinitializer
59  store i32 %sel, i32* %7, align 4
60  %indvars.iv.next = add i64 %indvars.iv, 1
61  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
62  %exitcond = icmp eq i32 %lftr.wideiv, 256
63  br i1 %exitcond, label %9, label %1
64
65; <label>:9
66  ret void
67}
68
69