1 ; RUN: opt < %s -passes=loop-vectorize -mattr=+sse4.2 -debug-only=loop-vectorize 2>&1 -S | FileCheck %s
3 ; Make sure we use the right select kind when querying select costs.
5 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"
6 target triple = "x86_64-apple-macosx10.8.0"
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
12 ; CHECK: Checking a loop in 'scalarselect'
13 define void @scalarselect(i1 %cond) {
17 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
18 %2 = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 %indvars.iv
19 %3 = load i32, ptr %2, align 4
20 %4 = getelementptr inbounds [2048 x i32], ptr @c, i64 0, i64 %indvars.iv
21 %5 = load i32, ptr %4, align 4
22 %6 = add nsw i32 %5, %3
23 %7 = getelementptr inbounds [2048 x i32], ptr @a, i64 0, i64 %indvars.iv
25 ; CHECK: cost of 1 for VF 1 {{.*}} select i1 %cond, i32 %6, i32 0
26 ; CHECK: Cost of 2 for VF 2: WIDEN-SELECT ir<%sel> = select ir<%cond>, ir<%6>, ir<0> (condition is loop invariant)
27 ; CHECK: Cost of 2 for VF 4: WIDEN-SELECT ir<%sel> = select ir<%cond>, ir<%6>, ir<0> (condition is loop invariant)
29 %sel = select i1 %cond, i32 %6, i32 zeroinitializer
30 store i32 %sel, ptr %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
40 ; CHECK: Checking a loop in 'vectorselect'
41 define void @vectorselect(i1 %cond) {
45 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
46 %2 = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 %indvars.iv
47 %3 = load i32, ptr %2, align 4
48 %4 = getelementptr inbounds [2048 x i32], ptr @c, i64 0, i64 %indvars.iv
49 %5 = load i32, ptr %4, align 4
50 %6 = add nsw i32 %5, %3
51 %7 = getelementptr inbounds [2048 x i32], ptr @a, i64 0, i64 %indvars.iv
52 %8 = icmp ult i64 %indvars.iv, 8
54 ; CHECK: cost of 1 for VF 1 {{.*}} select i1 %8, i32 %6, i32 0
55 ; CHECK: Cost of 2 for VF 2: WIDEN-SELECT ir<%sel> = select ir<%8>, ir<%6>, ir<0>
56 ; CHECK: Cost of 2 for VF 4: WIDEN-SELECT ir<%sel> = select ir<%8>, ir<%6>, ir<0>
58 %sel = select i1 %8, i32 %6, i32 zeroinitializer
59 store i32 %sel, ptr %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