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
|
; RUN: opt -instcombine -S < %s | FileCheck %s
target datalayout = "e-p:64:64:64-p1:32:32:32-p2:16:16:16-n8:16:32:64"
declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) nounwind
declare void @llvm.memcpy.p0i8.p1i8.i32(i8*, i8 addrspace(1)*, i32, i32, i1) nounwind
declare void @llvm.memcpy.p0i8.p2i8.i32(i8*, i8 addrspace(2)*, i32, i32, i1) nounwind
define i32* @combine_redundant_addrspacecast(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_redundant_addrspacecast(
; CHECK: addrspacecast i32 addrspace(1)* %x to i32*
; CHECK-NEXT: ret
%y = addrspacecast i32 addrspace(1)* %x to i32 addrspace(3)*
%z = addrspacecast i32 addrspace(3)* %y to i32*
ret i32* %z
}
define <4 x i32*> @combine_redundant_addrspacecast_vector(<4 x i32 addrspace(1)*> %x) nounwind {
; CHECK-LABEL: @combine_redundant_addrspacecast_vector(
; CHECK: addrspacecast <4 x i32 addrspace(1)*> %x to <4 x i32*>
; CHECK-NEXT: ret
%y = addrspacecast <4 x i32 addrspace(1)*> %x to <4 x i32 addrspace(3)*>
%z = addrspacecast <4 x i32 addrspace(3)*> %y to <4 x i32*>
ret <4 x i32*> %z
}
define float* @combine_redundant_addrspacecast_types(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_redundant_addrspacecast_types(
; CHECK-NEXT: bitcast i32 addrspace(1)* %x to float addrspace(1)*
; CHECK-NEXT: addrspacecast float addrspace(1)* %1 to float*
; CHECK-NEXT: ret
%y = addrspacecast i32 addrspace(1)* %x to i32 addrspace(3)*
%z = addrspacecast i32 addrspace(3)* %y to float*
ret float* %z
}
define <4 x float*> @combine_redundant_addrspacecast_types_vector(<4 x i32 addrspace(1)*> %x) nounwind {
; CHECK-LABEL: @combine_redundant_addrspacecast_types_vector(
; CHECK-NEXT: bitcast <4 x i32 addrspace(1)*> %x to <4 x float addrspace(1)*>
; CHECK-NEXT: addrspacecast <4 x float addrspace(1)*> %1 to <4 x float*>
; CHECK-NEXT: ret
%y = addrspacecast <4 x i32 addrspace(1)*> %x to <4 x i32 addrspace(3)*>
%z = addrspacecast <4 x i32 addrspace(3)*> %y to <4 x float*>
ret <4 x float*> %z
}
define float addrspace(2)* @combine_addrspacecast_bitcast_1(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_addrspacecast_bitcast_1(
; CHECK-NEXT: bitcast i32 addrspace(1)* %x to float addrspace(1)*
; CHECK-NEXT: addrspacecast float addrspace(1)* %1 to float addrspace(2)*
; CHECK-NEXT: ret
%y = addrspacecast i32 addrspace(1)* %x to i32 addrspace(2)*
%z = bitcast i32 addrspace(2)* %y to float addrspace(2)*
ret float addrspace(2)* %z
}
define i32 addrspace(2)* @combine_addrspacecast_bitcast_2(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_addrspacecast_bitcast_2(
; CHECK: addrspacecast i32 addrspace(1)* %x to i32 addrspace(2)*
; CHECK-NEXT: ret
%y = addrspacecast i32 addrspace(1)* %x to float addrspace(2)*
%z = bitcast float addrspace(2)* %y to i32 addrspace(2)*
ret i32 addrspace(2)* %z
}
define i32 addrspace(2)* @combine_bitcast_addrspacecast_1(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_bitcast_addrspacecast_1(
; CHECK: addrspacecast i32 addrspace(1)* %x to i32 addrspace(2)*
; CHECK-NEXT: ret
%y = bitcast i32 addrspace(1)* %x to i8 addrspace(1)*
%z = addrspacecast i8 addrspace(1)* %y to i32 addrspace(2)*
ret i32 addrspace(2)* %z
}
define float addrspace(2)* @combine_bitcast_addrspacecast_2(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_bitcast_addrspacecast_2(
; CHECK: bitcast i32 addrspace(1)* %x to float addrspace(1)*
; CHECK: addrspacecast float addrspace(1)* %1 to float addrspace(2)*
; CHECK-NEXT: ret
%y = bitcast i32 addrspace(1)* %x to i8 addrspace(1)*
%z = addrspacecast i8 addrspace(1)* %y to float addrspace(2)*
ret float addrspace(2)* %z
}
define float addrspace(2)* @combine_addrspacecast_types(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_addrspacecast_types(
; CHECK-NEXT: bitcast i32 addrspace(1)* %x to float addrspace(1)*
; CHECK-NEXT: addrspacecast float addrspace(1)* %1 to float addrspace(2)*
; CHECK-NEXT: ret
%y = addrspacecast i32 addrspace(1)* %x to float addrspace(2)*
ret float addrspace(2)* %y
}
define <4 x float addrspace(2)*> @combine_addrspacecast_types_vector(<4 x i32 addrspace(1)*> %x) nounwind {
; CHECK-LABEL: @combine_addrspacecast_types_vector(
; CHECK-NEXT: bitcast <4 x i32 addrspace(1)*> %x to <4 x float addrspace(1)*>
; CHECK-NEXT: addrspacecast <4 x float addrspace(1)*> %1 to <4 x float addrspace(2)*>
; CHECK-NEXT: ret
%y = addrspacecast <4 x i32 addrspace(1)*> %x to <4 x float addrspace(2)*>
ret <4 x float addrspace(2)*> %y
}
define i32 @canonicalize_addrspacecast([16 x i32] addrspace(1)* %arr) {
; CHECK-LABEL: @canonicalize_addrspacecast(
; CHECK-NEXT: getelementptr inbounds [16 x i32] addrspace(1)* %arr, i32 0, i32 0
; CHECK-NEXT: addrspacecast i32 addrspace(1)* %{{[a-zA-Z0-9]+}} to i32*
; CHECK-NEXT: load i32*
; CHECK-NEXT: ret i32
%p = addrspacecast [16 x i32] addrspace(1)* %arr to i32*
%v = load i32* %p
ret i32 %v
}
@const_array = addrspace(2) constant [60 x i8] [i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22 ]
declare void @foo(i8*) nounwind
; A copy from a constant addrspacecast'ed global
; CHECK-LABEL: @memcpy_addrspacecast(
; CHECK-NOT: call void @llvm.memcpy
define i32 @memcpy_addrspacecast() nounwind {
entry:
%alloca = alloca i8, i32 48
call void @llvm.memcpy.p0i8.p1i8.i32(i8* %alloca, i8 addrspace(1)* addrspacecast (i8 addrspace(2)* getelementptr inbounds ([60 x i8] addrspace(2)* @const_array, i16 0, i16 4) to i8 addrspace(1)*), i32 48, i32 4, i1 false) nounwind
br label %loop.body
loop.body:
%i = phi i32 [ 0, %entry ], [ %i.inc, %loop.body ]
%sum = phi i32 [ 0, %entry ], [ %sum.inc, %loop.body]
%ptr = getelementptr i8* %alloca, i32 %i
%load = load i8* %ptr
%ext = zext i8 %load to i32
%sum.inc = add i32 %sum, %ext
%i.inc = add i32 %i, 1
%cmp = icmp ne i32 %i, 48
br i1 %cmp, label %loop.body, label %end
end:
ret i32 %sum.inc
}
|
