1; RUN: llc -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
2
3declare void @bar(i32)
4
5define void @test_float(float %a, float %b) {
6; CHECK-LABEL: test_float:
7
8  %tst1 = fcmp oeq float %a, %b
9  br i1 %tst1, label %end, label %t2
10; CHECK: fcmp {{s[0-9]+}}, {{s[0-9]+}}
11; CHECK: b.eq .L
12
13t2:
14  %tst2 = fcmp une float %b, 0.0
15  br i1 %tst2, label %t3, label %end
16; CHECK: fcmp {{s[0-9]+}}, #0.0
17; CHECK: b.eq .L
18
19
20t3:
21; This test can't be implemented with just one A64 conditional
22; branch. LLVM converts "ordered and not equal" to "unordered or
23; equal" before instruction selection, which is what we currently
24; test. Obviously, other sequences are valid.
25  %tst3 = fcmp one float %a,  %b
26  br i1 %tst3, label %t4, label %end
27; CHECK: fcmp {{s[0-9]+}}, {{s[0-9]+}}
28; CHECK-NEXT: b.eq .[[T4:LBB[0-9]+_[0-9]+]]
29; CHECK-NEXT: b.vs .[[T4]]
30t4:
31  %tst4 = fcmp uge float %a, -0.0
32  br i1 %tst4, label %t5, label %end
33; CHECK-NOT: fcmp {{s[0-9]+}}, #0.0
34; CHECK: b.mi .LBB
35
36t5:
37  call void @bar(i32 0)
38  ret void
39end:
40  ret void
41
42}
43
44define void @test_double(double %a, double %b) {
45; CHECK-LABEL: test_double:
46
47  %tst1 = fcmp oeq double %a, %b
48  br i1 %tst1, label %end, label %t2
49; CHECK: fcmp {{d[0-9]+}}, {{d[0-9]+}}
50; CHECK: b.eq .L
51
52t2:
53  %tst2 = fcmp une double %b, 0.0
54  br i1 %tst2, label %t3, label %end
55; CHECK: fcmp {{d[0-9]+}}, #0.0
56; CHECK: b.eq .L
57
58
59t3:
60; This test can't be implemented with just one A64 conditional
61; branch. LLVM converts "ordered and not equal" to "unordered or
62; equal" before instruction selection, which is what we currently
63; test. Obviously, other sequences are valid.
64  %tst3 = fcmp one double %a,  %b
65  br i1 %tst3, label %t4, label %end
66; CHECK: fcmp {{d[0-9]+}}, {{d[0-9]+}}
67; CHECK-NEXT: b.eq .[[T4:LBB[0-9]+_[0-9]+]]
68; CHECK-NEXT: b.vs .[[T4]]
69t4:
70  %tst4 = fcmp uge double %a, -0.0
71  br i1 %tst4, label %t5, label %end
72; CHECK-NOT: fcmp {{d[0-9]+}}, #0.0
73; CHECK: b.mi .LBB
74
75t5:
76  call void @bar(i32 0)
77  ret void
78end:
79  ret void
80
81}
82