1; RUN: llc < %s -mcpu=a2 | FileCheck %s
2; RUN: llc < %s -mcpu=a2 -disable-lsr | FileCheck -check-prefix=NOLSR %s
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-f128:128:128-v128:128:128-n32:64"
4target triple = "powerpc64-unknown-linux-gnu"
5
6define void @main() #0 {
7entry:
8  br i1 undef, label %for.end, label %for.body
9
10for.body:                                         ; preds = %for.body, %entry
11  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ]
12  %indvars.iv.next = add i64 %indvars.iv, 1
13  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
14  %exitcond = icmp eq i32 %lftr.wideiv, 0
15  br i1 %exitcond, label %for.end, label %for.body
16
17; CHECK: @main
18; CHECK: li [[REG:[0-9]+]], 0
19; CHECK: oris [[REG2:[0-9]+]], [[REG]], 65535
20; CHECK: ori [[REG3:[0-9]+]], [[REG2]], 65535
21; CHECK: mtctr [[REG3]]
22; CHECK: bdnz
23
24for.end:                                          ; preds = %for.body, %entry
25  ret void
26}
27
28define void @main1() #0 {
29entry:
30  br i1 undef, label %for.end, label %for.body
31
32for.body:                                         ; preds = %for.body, %entry
33  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ]
34  %indvars.iv.next = add i64 %indvars.iv, 1
35  %exitcond = icmp eq i64 %indvars.iv.next, 0
36  br i1 %exitcond, label %for.end, label %for.body
37
38; CHECK: @main1
39; CHECK: li [[REG:[0-9]+]], -1
40; CHECK: mtctr [[REG]]
41; CHECK: bdnz
42
43for.end:                                          ; preds = %for.body, %entry
44  ret void
45}
46
47define void @main2() #0 {
48entry:
49  br i1 undef, label %for.end, label %for.body
50
51for.body:                                         ; preds = %for.body, %entry
52  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ]
53  %indvars.iv.next = add i64 %indvars.iv, 1
54  %exitcond = icmp eq i64 %indvars.iv.next, -100000
55  br i1 %exitcond, label %for.end, label %for.body
56
57; CHECK: @main2
58; CHECK: lis [[REG:[0-9]+]], -2
59; CHECK: ori [[REG2:[0-9]+]], [[REG]], 31071
60; CHECK: mtctr [[REG2]]
61; CHECK: bdnz
62
63for.end:                                          ; preds = %for.body, %entry
64  ret void
65}
66
67define void @main3() #0 {
68entry:
69  br i1 undef, label %for.end, label %for.body
70
71for.body:                                         ; preds = %for.body, %entry
72  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 127984, %entry ]
73  %indvars.iv.next = add i64 %indvars.iv, -16
74  %exitcond = icmp eq i64 %indvars.iv.next, -16
75  br i1 %exitcond, label %for.end, label %for.body
76
77; NOLSR: @main3
78; NOLSR: li [[REG:[0-9]+]], 8000
79; NOLSR: mtctr [[REG]]
80; NOLSR: bdnz
81
82for.end:                                          ; preds = %for.body, %entry
83  ret void
84}
85
86attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
87