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1; RUN: llc -march=hexagon < %s | FileCheck %s
2
3; Make sure that if there's only one store to the stack, it gets packetized
4; with allocframe as there's a latency of 2 cycles between allocframe and
5; the following store if not in the same packet.
6
7; CHECK: {
8; CHECK: memd(r29
9; CHECK-NOT: {
10; CHECK: allocframe
11; CHECK: }
12; CHECK: = memw(gp+#G)
13
14%struct.0 = type { %struct.0*, i32, %struct.2 }
15%struct.1 = type { i32, i32, [31 x i8] }
16%struct.2 = type { %struct.1 }
17
18@G = common global %struct.0* null, align 4
19
20define i32 @test(%struct.0* nocapture %a0) #0 {
21b1:
22  %v2 = alloca %struct.0*, align 4
23  %v3 = bitcast %struct.0** %v2 to i8*
24  %v4 = getelementptr inbounds %struct.0, %struct.0* %a0, i32 0, i32 0
25  %v5 = load %struct.0*, %struct.0** %v4, align 4
26  store %struct.0* %v5, %struct.0** %v2, align 4
27  %v6 = bitcast %struct.0* %v5 to i8*
28  %v7 = load i8*, i8** bitcast (%struct.0** @G to i8**), align 4
29  tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %v6, i8* align 4 %v7, i32 48, i1 false)
30  %v8 = getelementptr inbounds %struct.0, %struct.0* %a0, i32 0, i32 2, i32 0, i32 1
31  store i32 5, i32* %v8, align 4
32  %v9 = getelementptr inbounds %struct.0, %struct.0* %v5, i32 0, i32 2, i32 0, i32 1
33  store i32 5, i32* %v9, align 4
34  %v10 = bitcast %struct.0* %a0 to i32*
35  %v11 = load i32, i32* %v10, align 4
36  %v12 = bitcast %struct.0* %v5 to i32*
37  store i32 %v11, i32* %v12, align 4
38  %v13 = call i32 bitcast (i32 (...)* @f0 to i32 (%struct.0**)*)(%struct.0** nonnull %v2)
39  %v14 = load %struct.0*, %struct.0** %v2, align 4
40  %v15 = getelementptr inbounds %struct.0, %struct.0* %v14, i32 0, i32 1
41  %v16 = load i32, i32* %v15, align 4
42  %v17 = icmp eq i32 %v16, 0
43  br i1 %v17, label %b18, label %b32
44
45b18:                                              ; preds = %b1
46  %v19 = bitcast %struct.0** %v2 to i32**
47  %v20 = getelementptr inbounds %struct.0, %struct.0* %v14, i32 0, i32 2, i32 0, i32 1
48  store i32 6, i32* %v20, align 4
49  %v21 = getelementptr inbounds %struct.0, %struct.0* %a0, i32 0, i32 2, i32 0, i32 0
50  %v22 = load i32, i32* %v21, align 4
51  %v23 = getelementptr inbounds %struct.0, %struct.0* %v14, i32 0, i32 2, i32 0, i32 0
52  %v24 = call i32 bitcast (i32 (...)* @f1 to i32 (i32, i32*)*)(i32 %v22, i32* %v23)
53  %v25 = load i32*, i32** bitcast (%struct.0** @G to i32**), align 4
54  %v26 = load i32, i32* %v25, align 4
55  %v27 = load i32*, i32** %v19, align 4
56  store i32 %v26, i32* %v27, align 4
57  %v28 = load %struct.0*, %struct.0** %v2, align 4
58  %v29 = getelementptr inbounds %struct.0, %struct.0* %v28, i32 0, i32 2, i32 0, i32 1
59  %v30 = load i32, i32* %v29, align 4
60  %v31 = call i32 bitcast (i32 (...)* @f2 to i32 (i32, i32, i32*)*)(i32 %v30, i32 10, i32* %v29)
61  br label %b36
62
63b32:                                              ; preds = %b1
64  %v33 = bitcast %struct.0* %a0 to i8**
65  %v34 = load i8*, i8** %v33, align 4
66  %v35 = bitcast %struct.0* %a0 to i8*
67  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %v35, i8* align 4 %v34, i32 48, i1 false)
68  br label %b36
69
70b36:                                              ; preds = %b32, %b18
71  ret i32 undef
72}
73
74declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1) #1
75
76declare i32 @f0(...) #0
77declare i32 @f1(...) #0
78declare i32 @f2(...) #0
79
80attributes #0 = { nounwind }
81attributes #1 = { argmemonly nounwind }
82