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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=instcombine %s -S | FileCheck %s
@block = global [64 x [8192 x i8]] zeroinitializer, align 1
define <2 x ptr> @vectorindex1() {
; CHECK-LABEL: @vectorindex1(
; CHECK-NEXT: ret <2 x ptr> getelementptr inbounds ([64 x [8192 x i8]], ptr @block, <2 x i64> zeroinitializer, <2 x i64> <i64 0, i64 1>, <2 x i64> <i64 8192, i64 8192>)
;
%1 = getelementptr inbounds [64 x [8192 x i8]], ptr @block, i64 0, <2 x i64> <i64 0, i64 1>, i64 8192
ret <2 x ptr> %1
}
define <2 x ptr> @vectorindex2() {
; CHECK-LABEL: @vectorindex2(
; CHECK-NEXT: ret <2 x ptr> getelementptr inbounds ([64 x [8192 x i8]], ptr @block, <2 x i64> zeroinitializer, <2 x i64> <i64 1, i64 1>, <2 x i64> <i64 8191, i64 8193>)
;
%1 = getelementptr inbounds [64 x [8192 x i8]], ptr @block, i64 0, i64 1, <2 x i64> <i64 8191, i64 8193>
ret <2 x ptr> %1
}
define <2 x ptr> @vectorindex3() {
; CHECK-LABEL: @vectorindex3(
; CHECK-NEXT: ret <2 x ptr> getelementptr inbounds ([64 x [8192 x i8]], ptr @block, <2 x i64> zeroinitializer, <2 x i64> <i64 0, i64 1>, <2 x i64> <i64 8191, i64 8193>)
;
%1 = getelementptr inbounds [64 x [8192 x i8]], ptr @block, i64 0, <2 x i64> <i64 0, i64 1>, <2 x i64> <i64 8191, i64 8193>
ret <2 x ptr> %1
}
; Negative test - datalayout's alloc size for the 2 types must match.
define ptr @bitcast_vec_to_array_gep(ptr %x, i64 %y, i64 %z) {
; CHECK-LABEL: @bitcast_vec_to_array_gep(
; CHECK-NEXT: [[GEP:%.*]] = getelementptr [7 x i32], ptr [[X:%.*]], i64 [[Y:%.*]], i64 [[Z:%.*]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%gep = getelementptr [7 x i32], ptr %x, i64 %y, i64 %z
ret ptr %gep
}
; Negative test - datalayout's alloc size for the 2 types must match.
define ptr @bitcast_array_to_vec_gep(ptr %x, i64 %y, i64 %z) {
; CHECK-LABEL: @bitcast_array_to_vec_gep(
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds <3 x i32>, ptr [[X:%.*]], i64 [[Y:%.*]], i64 [[Z:%.*]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%gep = getelementptr inbounds <3 x i32>, ptr %x, i64 %y, i64 %z
ret ptr %gep
}
; Sizes and types match - safe to remove bitcast.
define ptr @bitcast_vec_to_array_gep_matching_alloc_size(ptr %x, i64 %y, i64 %z) {
; CHECK-LABEL: @bitcast_vec_to_array_gep_matching_alloc_size(
; CHECK-NEXT: [[GEP:%.*]] = getelementptr [4 x i32], ptr [[X:%.*]], i64 [[Y:%.*]], i64 [[Z:%.*]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%gep = getelementptr [4 x i32], ptr %x, i64 %y, i64 %z
ret ptr %gep
}
; Sizes and types match - safe to remove bitcast.
define ptr @bitcast_array_to_vec_gep_matching_alloc_size(ptr %x, i64 %y, i64 %z) {
; CHECK-LABEL: @bitcast_array_to_vec_gep_matching_alloc_size(
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds <4 x i32>, ptr [[X:%.*]], i64 [[Y:%.*]], i64 [[Z:%.*]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%gep = getelementptr inbounds <4 x i32>, ptr %x, i64 %y, i64 %z
ret ptr %gep
}
; Negative test - datalayout's alloc size for the 2 types must match.
define ptr addrspace(3) @bitcast_vec_to_array_addrspace(ptr %x, i64 %y, i64 %z) {
; CHECK-LABEL: @bitcast_vec_to_array_addrspace(
; CHECK-NEXT: [[ASC:%.*]] = addrspacecast ptr [[X:%.*]] to ptr addrspace(3)
; CHECK-NEXT: [[GEP:%.*]] = getelementptr [7 x i32], ptr addrspace(3) [[ASC]], i64 [[Y:%.*]], i64 [[Z:%.*]]
; CHECK-NEXT: ret ptr addrspace(3) [[GEP]]
;
%asc = addrspacecast ptr %x to ptr addrspace(3)
%gep = getelementptr [7 x i32], ptr addrspace(3) %asc, i64 %y, i64 %z
ret ptr addrspace(3) %gep
}
; Negative test - datalayout's alloc size for the 2 types must match.
define ptr addrspace(3) @inbounds_bitcast_vec_to_array_addrspace(ptr %x, i64 %y, i64 %z) {
; CHECK-LABEL: @inbounds_bitcast_vec_to_array_addrspace(
; CHECK-NEXT: [[ASC:%.*]] = addrspacecast ptr [[X:%.*]] to ptr addrspace(3)
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [7 x i32], ptr addrspace(3) [[ASC]], i64 [[Y:%.*]], i64 [[Z:%.*]]
; CHECK-NEXT: ret ptr addrspace(3) [[GEP]]
;
%asc = addrspacecast ptr %x to ptr addrspace(3)
%gep = getelementptr inbounds [7 x i32], ptr addrspace(3) %asc, i64 %y, i64 %z
ret ptr addrspace(3) %gep
}
; Sizes and types match - safe to remove bitcast.
define ptr addrspace(3) @bitcast_vec_to_array_addrspace_matching_alloc_size(ptr %x, i64 %y, i64 %z) {
; CHECK-LABEL: @bitcast_vec_to_array_addrspace_matching_alloc_size(
; CHECK-NEXT: [[ASC:%.*]] = addrspacecast ptr [[X:%.*]] to ptr addrspace(3)
; CHECK-NEXT: [[GEP:%.*]] = getelementptr [4 x i32], ptr addrspace(3) [[ASC]], i64 [[Y:%.*]], i64 [[Z:%.*]]
; CHECK-NEXT: ret ptr addrspace(3) [[GEP]]
;
%asc = addrspacecast ptr %x to ptr addrspace(3)
%gep = getelementptr [4 x i32], ptr addrspace(3) %asc, i64 %y, i64 %z
ret ptr addrspace(3) %gep
}
; Sizes and types match - safe to remove bitcast.
define ptr addrspace(3) @inbounds_bitcast_vec_to_array_addrspace_matching_alloc_size(ptr %x, i64 %y, i64 %z) {
; CHECK-LABEL: @inbounds_bitcast_vec_to_array_addrspace_matching_alloc_size(
; CHECK-NEXT: [[ASC:%.*]] = addrspacecast ptr [[X:%.*]] to ptr addrspace(3)
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [4 x i32], ptr addrspace(3) [[ASC]], i64 [[Y:%.*]], i64 [[Z:%.*]]
; CHECK-NEXT: ret ptr addrspace(3) [[GEP]]
;
%asc = addrspacecast ptr %x to ptr addrspace(3)
%gep = getelementptr inbounds [4 x i32], ptr addrspace(3) %asc, i64 %y, i64 %z
ret ptr addrspace(3) %gep
}
; Negative test - avoid doing bitcast on ptr, because '16' should be scaled by 'vscale'.
define ptr @test_accumulate_constant_offset_vscale_nonzero(<vscale x 16 x i1> %pg, ptr %base) {
; CHECK-LABEL: @test_accumulate_constant_offset_vscale_nonzero(
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP2:%.*]] = shl i64 [[TMP1]], 4
; CHECK-NEXT: [[GEP_OFFS:%.*]] = or disjoint i64 [[TMP2]], 4
; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, ptr [[BASE:%.*]], i64 [[GEP_OFFS]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%gep = getelementptr <vscale x 16 x i8>, ptr %base, i64 1, i64 4
ret ptr %gep
}
define ptr @test_accumulate_constant_offset_vscale_zero(<vscale x 16 x i1> %pg, ptr %base) {
; CHECK-LABEL: @test_accumulate_constant_offset_vscale_zero(
; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, ptr [[BASE:%.*]], i64 4
; CHECK-NEXT: ret ptr [[GEP]]
;
%gep = getelementptr <vscale x 16 x i8>, ptr %base, i64 0, i64 4
ret ptr %gep
}
|
