• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: llc -mtriple=aarch64-linux-gnu -verify-machineinstrs -o - %s | FileCheck %s
2
3%struct_type = type { [10000 x i32], i32, i32 }
4
5define void @test1(%struct_type** %s, i32 %n) {
6; CHECK-LABEL: test1
7entry:
8  %struct = load %struct_type*, %struct_type** %s
9  br label %while_cond
10
11while_cond:
12  %phi = phi i32 [ 0, %entry ], [ %i, %while_body ]
13; CHECK:     mov     w{{[0-9]+}}, #40000
14; CHECK-NOT: mov     w{{[0-9]+}}, #40004
15  %gep0 = getelementptr %struct_type, %struct_type* %struct, i64 0, i32 1
16  %gep1 = getelementptr %struct_type, %struct_type* %struct, i64 0, i32 2
17  %cmp = icmp slt i32 %phi, %n
18  br i1 %cmp, label %while_body, label %while_end
19
20while_body:
21; CHECK:     str      w{{[0-9]+}}, [x{{[0-9]+}}, #4]
22  %i = add i32 %phi, 1
23  store i32 %i, i32* %gep0
24  store i32 %phi, i32* %gep1
25  br label %while_cond
26
27while_end:
28  ret void
29}
30
31define void @test2(%struct_type* %struct, i32 %n) {
32; CHECK-LABEL: test2
33entry:
34  %cmp = icmp eq %struct_type* %struct, null
35  br i1 %cmp, label %while_end, label %while_cond
36
37while_cond:
38  %phi = phi i32 [ 0, %entry ], [ %i, %while_body ]
39; CHECK:     mov     w{{[0-9]+}}, #40000
40; CHECK-NOT: mov     w{{[0-9]+}}, #40004
41  %gep0 = getelementptr %struct_type, %struct_type* %struct, i64 0, i32 1
42  %gep1 = getelementptr %struct_type, %struct_type* %struct, i64 0, i32 2
43  %cmp1 = icmp slt i32 %phi, %n
44  br i1 %cmp1, label %while_body, label %while_end
45
46while_body:
47; CHECK:     str      w{{[0-9]+}}, [x{{[0-9]+}}, #4]
48  %i = add i32 %phi, 1
49  store i32 %i, i32* %gep0
50  store i32 %phi, i32* %gep1
51  br label %while_cond
52
53while_end:
54  ret void
55}
56
57define void @test3(%struct_type* %s1, %struct_type* %s2, i1 %cond, i32 %n) {
58; CHECK-LABEL: test3
59entry:
60  br i1 %cond, label %if_true, label %if_end
61
62if_true:
63  br label %if_end
64
65if_end:
66  %struct = phi %struct_type* [ %s1, %entry ], [ %s2, %if_true ]
67  %cmp = icmp eq %struct_type* %struct, null
68  br i1 %cmp, label %while_end, label %while_cond
69
70while_cond:
71  %phi = phi i32 [ 0, %if_end ], [ %i, %while_body ]
72; CHECK:     mov     w{{[0-9]+}}, #40000
73; CHECK-NOT: mov     w{{[0-9]+}}, #40004
74  %gep0 = getelementptr %struct_type, %struct_type* %struct, i64 0, i32 1
75  %gep1 = getelementptr %struct_type, %struct_type* %struct, i64 0, i32 2
76  %cmp1 = icmp slt i32 %phi, %n
77  br i1 %cmp1, label %while_body, label %while_end
78
79while_body:
80; CHECK:     str      w{{[0-9]+}}, [x{{[0-9]+}}, #4]
81  %i = add i32 %phi, 1
82  store i32 %i, i32* %gep0
83  store i32 %phi, i32* %gep1
84  br label %while_cond
85
86while_end:
87  ret void
88}
89
90declare %struct_type* @foo()
91declare void @foo2()
92
93define void @test4(i32 %n) personality i32 (...)* @__FrameHandler {
94; CHECK-LABEL: test4
95entry:
96  br label %while_cond
97
98while_cond:
99  %phi = phi i32 [ 0, %entry ], [ %i, %while_body ]
100  %struct = invoke %struct_type* @foo() to label %while_cond_x unwind label %cleanup
101
102while_cond_x:
103; CHECK:     mov     w{{[0-9]+}}, #40000
104; CHECK-NOT: mov     w{{[0-9]+}}, #40004
105  %gep0 = getelementptr %struct_type, %struct_type* %struct, i64 0, i32 1
106  %gep1 = getelementptr %struct_type, %struct_type* %struct, i64 0, i32 2
107  store i32 0, i32* %gep0
108  %cmp = icmp slt i32 %phi, %n
109  br i1 %cmp, label %while_body, label %while_end
110
111while_body:
112; CHECK:     str      w{{[0-9]+}}, [x{{[0-9]+}}, #4]
113  %i = add i32 %phi, 1
114  store i32 %i, i32* %gep0
115  store i32 %phi, i32* %gep1
116  br label %while_cond
117
118while_end:
119  ret void
120
121cleanup:
122  %x10 = landingpad { i8*, i32 }
123          cleanup
124  call void @foo2()
125  resume { i8*, i32 } %x10
126}
127
128declare i32 @__FrameHandler(...)
129
130define void @test5([65536 x i32]** %s, i32 %n) {
131; CHECK-LABEL: test5
132entry:
133  %struct = load [65536 x i32]*, [65536 x i32]** %s
134  br label %while_cond
135
136while_cond:
137  %phi = phi i32 [ 0, %entry ], [ %i, %while_body ]
138; CHECK:     mov     w{{[0-9]+}}, #14464
139; CHECK-NOT: mov     w{{[0-9]+}}, #14468
140  %gep0 = getelementptr [65536 x i32], [65536 x i32]* %struct, i64 0, i32 20000
141  %gep1 = getelementptr [65536 x i32], [65536 x i32]* %struct, i64 0, i32 20001
142  %cmp = icmp slt i32 %phi, %n
143  br i1 %cmp, label %while_body, label %while_end
144
145while_body:
146; CHECK:     str      w{{[0-9]+}}, [x{{[0-9]+}}, #4]
147  %i = add i32 %phi, 1
148  store i32 %i, i32* %gep0
149  store i32 %phi, i32* %gep1
150  br label %while_cond
151
152while_end:
153  ret void
154}
155
156declare i8* @llvm.strip.invariant.group.p0i8(i8*)
157
158define void @test_invariant_group(i32) {
159; CHECK-LABEL: test_invariant_group
160  br i1 undef, label %8, label %7
161
162; <label>:2:                                      ; preds = %8, %2
163  br i1 undef, label %2, label %7
164
165; <label>:3:                                      ; preds = %8
166  %4 = getelementptr inbounds i8, i8* %9, i32 40000
167  %5 = bitcast i8* %4 to i64*
168  br i1 undef, label %7, label %6
169
170; <label>:6:                                      ; preds = %3
171  store i64 1, i64* %5, align 8
172  br label %7
173
174; <label>:7:                                      ; preds = %6, %3, %2, %1
175  ret void
176
177; <label>:8:                                      ; preds = %1
178  %9 = call i8* @llvm.strip.invariant.group.p0i8(i8* nonnull undef)
179  %10 = icmp eq i32 %0, 0
180  br i1 %10, label %3, label %2
181}
182
183