1; RUN: opt < %s  -loop-vectorize -mcpu=core2 -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; A scalar select has a cost of 1 on core2
26; CHECK: cost of 1 for VF 2 {{.*}}  select i1 %cond, i32 %6, i32 0
27
28  %sel = select i1 %cond, i32 %6, i32 zeroinitializer
29  store i32 %sel, i32* %7, align 4
30  %indvars.iv.next = add i64 %indvars.iv, 1
31  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
32  %exitcond = icmp eq i32 %lftr.wideiv, 256
33  br i1 %exitcond, label %8, label %1
34
35; <label>:8
36  ret void
37}
38
39; CHECK: Checking a loop in "vectorselect"
40define void @vectorselect(i1 %cond) {
41  br label %1
42
43; <label>:1
44  %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
45  %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv
46  %3 = load i32, i32* %2, align 4
47  %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv
48  %5 = load i32, i32* %4, align 4
49  %6 = add nsw i32 %5, %3
50  %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv
51  %8 = icmp ult i64 %indvars.iv, 8
52
53; A vector select has a cost of 1 on core2
54; CHECK: cost of 1 for VF 2 {{.*}}  select i1 %8, i32 %6, i32 0
55
56  %sel = select i1 %8, i32 %6, i32 zeroinitializer
57  store i32 %sel, i32* %7, align 4
58  %indvars.iv.next = add i64 %indvars.iv, 1
59  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
60  %exitcond = icmp eq i32 %lftr.wideiv, 256
61  br i1 %exitcond, label %9, label %1
62
63; <label>:9
64  ret void
65}
66
67