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1target 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-v128:128:128-n32:64"
2target triple = "powerpc64-unknown-freebsd10.0"
3; RUN: llc < %s -march=ppc64 -relocation-model=pic | FileCheck %s
4
5@a = common global i32 0, align 4
6
7define void @test1(i32 %c) nounwind {
8entry:
9  br label %for.body
10
11for.body:                                         ; preds = %for.body, %entry
12  %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
13  %0 = load volatile i32, i32* @a, align 4
14  %add = add nsw i32 %0, %c
15  store volatile i32 %add, i32* @a, align 4
16  %inc = add nsw i32 %i.01, 1
17  %exitcond = icmp eq i32 %inc, 2048
18  br i1 %exitcond, label %for.end, label %for.body
19
20for.end:                                          ; preds = %for.body
21  ret void
22; CHECK: @test1
23; CHECK-NOT: or 3, 3, 3
24; CHECK: mtctr
25; CHECK-NOT: addi {[0-9]+}
26; CHECK-NOT: cmplwi
27; CHECK: bdnz
28}
29
30define void @test2(i32 %c, i32 %d) nounwind {
31entry:
32  %cmp1 = icmp sgt i32 %d, 0
33  br i1 %cmp1, label %for.body, label %for.end
34
35for.body:                                         ; preds = %entry, %for.body
36  %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
37  %0 = load volatile i32, i32* @a, align 4
38  %add = add nsw i32 %0, %c
39  store volatile i32 %add, i32* @a, align 4
40  %inc = add nsw i32 %i.02, 1
41  %exitcond = icmp eq i32 %inc, %d
42  br i1 %exitcond, label %for.end, label %for.body
43
44for.end:                                          ; preds = %for.body, %entry
45  ret void
46; CHECK: @test2
47; CHECK: mtctr
48; CHECK-NOT: addi {[0-9]+}
49; CHECK-NOT: cmplwi
50; CHECK: bdnz
51}
52
53define void @test3(i32 %c, i32 %d) nounwind {
54entry:
55  %cmp1 = icmp sgt i32 %d, 0
56  br i1 %cmp1, label %for.body, label %for.end
57
58for.body:                                         ; preds = %entry, %for.body
59  %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
60  %mul = mul nsw i32 %i.02, %c
61  %0 = load volatile i32, i32* @a, align 4
62  %add = add nsw i32 %0, %mul
63  store volatile i32 %add, i32* @a, align 4
64  %inc = add nsw i32 %i.02, 1
65  %exitcond = icmp eq i32 %inc, %d
66  br i1 %exitcond, label %for.end, label %for.body
67
68for.end:                                          ; preds = %for.body, %entry
69  ret void
70; CHECK: @test3
71; CHECK: mtctr
72; CHECK-NOT: addi {[0-9]+}
73; CHECK-NOT: cmplwi
74; CHECK: bdnz
75}
76
77@tls_var = external thread_local global i8
78
79define i32 @test4(i32 %inp) {
80entry:
81  br label %for.body
82
83for.body:                                         ; preds = %for.body, %entry
84  %phi = phi i32 [ %dec, %for.body ], [ %inp, %entry ]
85  %load = ptrtoint i8* @tls_var to i32
86  %val = add i32 %load, %phi
87  %dec = add i32 %phi, -1
88  %cmp = icmp sgt i32 %phi, 1
89  br i1 %cmp, label %for.body, label %return
90
91return:                                           ; preds = %for.body
92  ret i32 %val
93; CHECK-LABEL: @test4
94; CHECK: mtctr
95; CHECK: bdnz
96; CHECK: __tls_get_addr
97}
98