1; RUN: opt -S -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 < %s | FileCheck %s
2
3target 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
5; Make sure we can vectorize loops which contain lifetime markers.
6
7; CHECK-LABEL: @test(
8; CHECK: call void @llvm.lifetime.end
9; CHECK: store <2 x i32>
10; CHECK: call void @llvm.lifetime.start
11
12define void @test(i32 *%d) {
13entry:
14  %arr = alloca [1024 x i32], align 16
15  %0 = bitcast [1024 x i32]* %arr to i8*
16  call void @llvm.lifetime.start.p0i8(i64 4096, i8* %0) #1
17  br label %for.body
18
19for.body:
20  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
21  call void @llvm.lifetime.end.p0i8(i64 4096, i8* %0) #1
22  %arrayidx = getelementptr inbounds i32, i32* %d, i64 %indvars.iv
23  %1 = load i32, i32* %arrayidx, align 8
24  store i32 100, i32* %arrayidx, align 8
25  call void @llvm.lifetime.start.p0i8(i64 4096, i8* %0) #1
26  %indvars.iv.next = add i64 %indvars.iv, 1
27  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
28  %exitcond = icmp ne i32 %lftr.wideiv, 128
29  br i1 %exitcond, label %for.body, label %for.end
30
31for.end:
32  call void @llvm.lifetime.end.p0i8(i64 4096, i8* %0) #1
33  ret void
34}
35
36; CHECK-LABEL: @testbitcast(
37; CHECK: call void @llvm.lifetime.end
38; CHECK: store <2 x i32>
39; CHECK: call void @llvm.lifetime.start
40
41define void @testbitcast(i32 *%d) {
42entry:
43  %arr = alloca [1024 x i32], align 16
44  %0 = bitcast [1024 x i32]* %arr to i8*
45  call void @llvm.lifetime.start.p0i8(i64 4096, i8* %0) #1
46  br label %for.body
47
48for.body:
49  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
50  %1 = bitcast [1024 x i32]* %arr to i8*
51  call void @llvm.lifetime.end.p0i8(i64 4096, i8* %1) #1
52  %arrayidx = getelementptr inbounds i32, i32* %d, i64 %indvars.iv
53  %2 = load i32, i32* %arrayidx, align 8
54  store i32 100, i32* %arrayidx, align 8
55  call void @llvm.lifetime.start.p0i8(i64 4096, i8* %1) #1
56  %indvars.iv.next = add i64 %indvars.iv, 1
57  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
58  %exitcond = icmp ne i32 %lftr.wideiv, 128
59  br i1 %exitcond, label %for.body, label %for.end
60
61for.end:
62  call void @llvm.lifetime.end.p0i8(i64 4096, i8* %0) #1
63  ret void
64}
65
66; CHECK-LABEL: @testloopvariant(
67; CHECK: call void @llvm.lifetime.end
68; CHECK: store <2 x i32>
69; CHECK: call void @llvm.lifetime.start
70
71define void @testloopvariant(i32 *%d) {
72entry:
73  %arr = alloca [1024 x i32], align 16
74  br label %for.body
75
76for.body:
77  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
78  %0 = getelementptr [1024 x i32], [1024 x i32]* %arr, i32 0, i64 %indvars.iv
79  %1 = bitcast [1024 x i32]* %arr to i8*
80  call void @llvm.lifetime.end.p0i8(i64 4096, i8* %1) #1
81  %arrayidx = getelementptr inbounds i32, i32* %d, i64 %indvars.iv
82  %2 = load i32, i32* %arrayidx, align 8
83  store i32 100, i32* %arrayidx, align 8
84  call void @llvm.lifetime.start.p0i8(i64 4096, i8* %1) #1
85  %indvars.iv.next = add i64 %indvars.iv, 1
86  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
87  %exitcond = icmp ne i32 %lftr.wideiv, 128
88  br i1 %exitcond, label %for.body, label %for.end
89
90for.end:
91  ret void
92}
93
94declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
95
96declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
97