1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -aa-pipeline=basic-aa -passes='require<memoryssa>,memcpyopt' -verify-memoryssa -S %s | FileCheck %s
; REQUIRES: asserts
target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.15.0"
%t = type <{ i8*, [4 x i8], i8*, i8*, i32, [8192 x i8] }>
define i32 @test1(%t* %ptr) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: invoke.cont6:
; CHECK-NEXT: [[P_1:%.*]] = getelementptr inbounds [[T:%.*]], %t* [[PTR:%.*]], i64 0, i32 0
; CHECK-NEXT: [[P_1_C:%.*]] = bitcast i8** [[P_1]] to i8*
; CHECK-NEXT: [[P_2:%.*]] = getelementptr inbounds [[T]], %t* [[PTR]], i64 0, i32 4
; CHECK-NEXT: [[P_3:%.*]] = getelementptr inbounds [[T]], %t* [[PTR]], i64 0, i32 5, i64 0
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i8** [[P_1]] to i8*
; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[TMP0]], i8 0, i64 20, i1 false)
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[P_2]] to i8*
; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[TMP1]], i8 0, i64 8195, i1 false)
; CHECK-NEXT: ret i32 0
;
invoke.cont6:
%p.1 = getelementptr inbounds %t, %t* %ptr, i64 0, i32 0
%p.1.c = bitcast i8** %p.1 to i8*
call void @llvm.memset.p0i8.i64(i8* %p.1.c, i8 0, i64 20, i1 false)
store i8* null, i8** %p.1, align 8
%p.2 = getelementptr inbounds %t, %t* %ptr, i64 0, i32 4
store i32 0, i32* %p.2, align 8
%p.3 = getelementptr inbounds %t, %t* %ptr, i64 0, i32 5, i64 0
call void @llvm.memset.p0i8.i64(i8* %p.3, i8 0, i64 8191, i1 false)
ret i32 0
}
declare i8* @get_ptr()
define void @test2(i8* noalias %in) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CALL_I1_I:%.*]] = tail call i8* @get_ptr()
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[CALL_I1_I]], i8* [[IN:%.*]], i64 10, i1 false)
; CHECK-NEXT: ret void
;
entry:
%call.i1.i = tail call i8* @get_ptr()
tail call void @llvm.memset.p0i8.i64(i8* %call.i1.i, i8 0, i64 10, i1 false)
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %call.i1.i, i8* %in, i64 10, i1 false)
ret void
}
declare i8* @malloc(i64)
define i32 @test3(i8* noalias %in) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[CALL_I_I_I:%.*]] = tail call i8* @malloc(i64 20)
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[CALL_I_I_I]], i8* [[IN:%.*]], i64 20, i1 false)
; CHECK-NEXT: ret i32 10
;
%call.i.i.i = tail call i8* @malloc(i64 20)
tail call void @llvm.memmove.p0i8.p0i8.i64(i8* %call.i.i.i, i8* %in, i64 20, i1 false)
ret i32 10
}
define void @test4(i32 %n, i8* noalias %ptr.0, i8* noalias %ptr.1, i32* %ptr.2) unnamed_addr {
; CHECK-LABEL: @test4(
; CHECK-NEXT: [[ELEM_I:%.*]] = getelementptr i8, i8* [[PTR_0:%.*]], i64 8
; CHECK-NEXT: store i32 [[N:%.*]], i32* [[PTR_2:%.*]], align 8
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[ELEM_I]], i8* [[PTR_1:%.*]], i64 10, i1 false)
; CHECK-NEXT: ret void
;
%elem.i = getelementptr i8, i8* %ptr.0, i64 8
call void @llvm.memset.p0i8.i64(i8* %elem.i, i8 0, i64 10, i1 false)
store i32 %n, i32* %ptr.2, align 8
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %elem.i, i8* %ptr.1, i64 10, i1 false)
ret void
}
declare void @decompose(%t* nocapture)
define void @test5(i32* %ptr) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[EARLY_DATA:%.*]] = alloca [128 x i8], align 8
; CHECK-NEXT: [[TMP:%.*]] = alloca [[T:%.*]], align 8
; CHECK-NEXT: [[TMP0:%.*]] = bitcast [128 x i8]* [[EARLY_DATA]] to i8*
; CHECK-NEXT: [[TMP1:%.*]] = bitcast %t* [[TMP]] to i8*
; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 32, i8* [[TMP0]])
; CHECK-NEXT: [[TMP2:%.*]] = load i32, i32* [[PTR:%.*]], align 8
; CHECK-NEXT: call fastcc void @decompose(%t* [[TMP]])
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[TMP0]], i8* [[TMP1]], i64 32, i1 false)
; CHECK-NEXT: ret void
;
entry:
%early_data = alloca [128 x i8], align 8
%tmp = alloca %t, align 8
%0 = bitcast [128 x i8]* %early_data to i8*
%1 = bitcast %t* %tmp to i8*
call void @llvm.lifetime.start.p0i8(i64 32, i8* %0)
%2 = load i32, i32* %ptr, align 8
call fastcc void @decompose(%t* %tmp)
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* %1, i64 32, i1 false)
ret void
}
define i8 @test6(i8* %ptr, i8* noalias %ptr.1) {
; CHECK-LABEL: @test6(
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 24, i8* [[PTR:%.*]])
; CHECK-NEXT: [[TMP0:%.*]] = load i8, i8* [[PTR]], align 8
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[PTR]], i8* [[PTR_1:%.*]], i64 24, i1 false)
; CHECK-NEXT: ret i8 [[TMP0]]
;
entry:
call void @llvm.lifetime.start.p0i8(i64 24, i8* %ptr)
%0 = load i8, i8* %ptr, align 8
call void @llvm.memmove.p0i8.p0i8.i64(i8* %ptr, i8* %ptr.1, i64 24, i1 false)
ret i8 %0
}
define void @test7([4 x i32]* %ptr) {
; CHECK-LABEL: @test7(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [4 x i32], [4 x i32]* [[PTR:%.*]], i64 0, i32 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [4 x i32], [4 x i32]* [[PTR]], i64 0, i32 1
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds [4 x i32], [4 x i32]* [[PTR]], i64 0, i32 2
; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds [4 x i32], [4 x i32]* [[PTR]], i64 0, i32 3
; CHECK-NEXT: [[TMP4:%.*]] = bitcast i32* [[TMP0]] to i8*
; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[TMP4]], i8 0, i64 16, i1 false)
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: ret void
;
entry:
%0 = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i64 0, i32 0
store i32 0, i32* %0, align 1
%1 = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i64 0, i32 1
store i32 0, i32* %1, align 1
%2 = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i64 0, i32 2
store i32 0, i32* %2, align 1
%3 = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i64 0, i32 3
store i32 0, i32* %3, align 1
call void @clobber()
ret void
}
define void @test8(%t* noalias %src, %t* %dst) {
; CHECK-LABEL: @test8(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast %t* [[SRC:%.*]] to i8*
; CHECK-NEXT: [[TMP2:%.*]] = bitcast %t* [[DST:%.*]] to i8*
; CHECK-NEXT: [[TMP3:%.*]] = bitcast %t* [[SRC]] to i8*
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 [[TMP2]], i8* align 1 [[TMP3]], i64 8224, i1 false)
; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[TMP1]], i8 0, i64 8224, i1 false)
; CHECK-NEXT: ret void
;
%1 = load %t, %t* %src
store %t zeroinitializer, %t* %src
store %t %1, %t* %dst
ret void
}
declare void @clobber()
; Function Attrs: argmemonly nounwind willreturn
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #0
; Function Attrs: argmemonly nounwind willreturn
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i64, i1 immarg) #0
; Function Attrs: argmemonly nounwind willreturn writeonly
declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #1
; Function Attrs: argmemonly nounwind willreturn
declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1 immarg) #0
attributes #0 = { argmemonly nounwind willreturn }
attributes #1 = { argmemonly nounwind willreturn writeonly }
|
