gep-bitcast.ll
5.92 KB
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
; RUN: opt -S -mtriple=amdgcn--amdhsa -load-store-vectorizer < %s | FileCheck %s
; RUN: opt -S -mtriple=amdgcn--amdhsa -passes='function(load-store-vectorizer)' < %s | FileCheck %s
target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5"
; Check that vectorizer can find a GEP through bitcast
; CHECK-LABEL: @vect_zext_bitcast_f32_to_i32_idx
; CHECK: load <4 x i32>
define void @vect_zext_bitcast_f32_to_i32_idx(float addrspace(1)* %arg1, i32 %base) {
%add1 = add nuw i32 %base, 0
%zext1 = zext i32 %add1 to i64
%gep1 = getelementptr inbounds float, float addrspace(1)* %arg1, i64 %zext1
%f2i1 = bitcast float addrspace(1)* %gep1 to i32 addrspace(1)*
%load1 = load i32, i32 addrspace(1)* %f2i1, align 4
%add2 = add nuw i32 %base, 1
%zext2 = zext i32 %add2 to i64
%gep2 = getelementptr inbounds float, float addrspace(1)* %arg1, i64 %zext2
%f2i2 = bitcast float addrspace(1)* %gep2 to i32 addrspace(1)*
%load2 = load i32, i32 addrspace(1)* %f2i2, align 4
%add3 = add nuw i32 %base, 2
%zext3 = zext i32 %add3 to i64
%gep3 = getelementptr inbounds float, float addrspace(1)* %arg1, i64 %zext3
%f2i3 = bitcast float addrspace(1)* %gep3 to i32 addrspace(1)*
%load3 = load i32, i32 addrspace(1)* %f2i3, align 4
%add4 = add nuw i32 %base, 3
%zext4 = zext i32 %add4 to i64
%gep4 = getelementptr inbounds float, float addrspace(1)* %arg1, i64 %zext4
%f2i4 = bitcast float addrspace(1)* %gep4 to i32 addrspace(1)*
%load4 = load i32, i32 addrspace(1)* %f2i4, align 4
ret void
}
; CHECK-LABEL: @vect_zext_bitcast_i8_st1_to_i32_idx
; CHECK: load i32
; CHECK: load i32
; CHECK: load i32
; CHECK: load i32
define void @vect_zext_bitcast_i8_st1_to_i32_idx(i8 addrspace(1)* %arg1, i32 %base) {
%add1 = add nuw i32 %base, 0
%zext1 = zext i32 %add1 to i64
%gep1 = getelementptr inbounds i8, i8 addrspace(1)* %arg1, i64 %zext1
%f2i1 = bitcast i8 addrspace(1)* %gep1 to i32 addrspace(1)*
%load1 = load i32, i32 addrspace(1)* %f2i1, align 4
%add2 = add nuw i32 %base, 1
%zext2 = zext i32 %add2 to i64
%gep2 = getelementptr inbounds i8,i8 addrspace(1)* %arg1, i64 %zext2
%f2i2 = bitcast i8 addrspace(1)* %gep2 to i32 addrspace(1)*
%load2 = load i32, i32 addrspace(1)* %f2i2, align 4
%add3 = add nuw i32 %base, 2
%zext3 = zext i32 %add3 to i64
%gep3 = getelementptr inbounds i8, i8 addrspace(1)* %arg1, i64 %zext3
%f2i3 = bitcast i8 addrspace(1)* %gep3 to i32 addrspace(1)*
%load3 = load i32, i32 addrspace(1)* %f2i3, align 4
%add4 = add nuw i32 %base, 3
%zext4 = zext i32 %add4 to i64
%gep4 = getelementptr inbounds i8, i8 addrspace(1)* %arg1, i64 %zext4
%f2i4 = bitcast i8 addrspace(1)* %gep4 to i32 addrspace(1)*
%load4 = load i32, i32 addrspace(1)* %f2i4, align 4
ret void
}
; CHECK-LABEL: @vect_zext_bitcast_i8_st4_to_i32_idx
; CHECK: load <4 x i32>
define void @vect_zext_bitcast_i8_st4_to_i32_idx(i8 addrspace(1)* %arg1, i32 %base) {
%add1 = add nuw i32 %base, 0
%zext1 = zext i32 %add1 to i64
%gep1 = getelementptr inbounds i8, i8 addrspace(1)* %arg1, i64 %zext1
%f2i1 = bitcast i8 addrspace(1)* %gep1 to i32 addrspace(1)*
%load1 = load i32, i32 addrspace(1)* %f2i1, align 4
%add2 = add nuw i32 %base, 4
%zext2 = zext i32 %add2 to i64
%gep2 = getelementptr inbounds i8,i8 addrspace(1)* %arg1, i64 %zext2
%f2i2 = bitcast i8 addrspace(1)* %gep2 to i32 addrspace(1)*
%load2 = load i32, i32 addrspace(1)* %f2i2, align 4
%add3 = add nuw i32 %base, 8
%zext3 = zext i32 %add3 to i64
%gep3 = getelementptr inbounds i8, i8 addrspace(1)* %arg1, i64 %zext3
%f2i3 = bitcast i8 addrspace(1)* %gep3 to i32 addrspace(1)*
%load3 = load i32, i32 addrspace(1)* %f2i3, align 4
%add4 = add nuw i32 %base, 12
%zext4 = zext i32 %add4 to i64
%gep4 = getelementptr inbounds i8, i8 addrspace(1)* %arg1, i64 %zext4
%f2i4 = bitcast i8 addrspace(1)* %gep4 to i32 addrspace(1)*
%load4 = load i32, i32 addrspace(1)* %f2i4, align 4
ret void
}
; CHECK-LABEL: @vect_zext_bitcast_negative_ptr_delta
; CHECK: load <2 x i32>
define void @vect_zext_bitcast_negative_ptr_delta(i32 addrspace(1)* %p, i32 %base) {
%p.bitcasted = bitcast i32 addrspace(1)* %p to i16 addrspace(1)*
%a.offset = add nuw i32 %base, 4
%t.offset.zexted = zext i32 %base to i64
%a.offset.zexted = zext i32 %a.offset to i64
%t.ptr = getelementptr inbounds i16, i16 addrspace(1)* %p.bitcasted, i64 %t.offset.zexted
%a.ptr = getelementptr inbounds i16, i16 addrspace(1)* %p.bitcasted, i64 %a.offset.zexted
%b.ptr = getelementptr inbounds i16, i16 addrspace(1)* %t.ptr, i64 6
%a.ptr.bitcasted = bitcast i16 addrspace(1)* %a.ptr to i32 addrspace(1)*
%b.ptr.bitcasted = bitcast i16 addrspace(1)* %b.ptr to i32 addrspace(1)*
%a.val = load i32, i32 addrspace(1)* %a.ptr.bitcasted
%b.val = load i32, i32 addrspace(1)* %b.ptr.bitcasted
ret void
}
; Check i1 corner case
; CHECK-LABEL: @zexted_i1_gep_index
; CHECK: load i32
; CHECK: load i32
define void @zexted_i1_gep_index(i32 addrspace(1)* %p, i32 %val) {
%selector = icmp eq i32 %val, 0
%flipped = xor i1 %selector, 1
%index.0 = zext i1 %selector to i64
%index.1 = zext i1 %flipped to i64
%gep.0 = getelementptr inbounds i32, i32 addrspace(1)* %p, i64 %index.0
%gep.1 = getelementptr inbounds i32, i32 addrspace(1)* %p, i64 %index.1
%val0 = load i32, i32 addrspace(1)* %gep.0
%val1 = load i32, i32 addrspace(1)* %gep.1
ret void
}
; Check i1 corner case
; CHECK-LABEL: @sexted_i1_gep_index
; CHECK: load i32
; CHECK: load i32
define void @sexted_i1_gep_index(i32 addrspace(1)* %p, i32 %val) {
%selector = icmp eq i32 %val, 0
%flipped = xor i1 %selector, 1
%index.0 = sext i1 %selector to i64
%index.1 = sext i1 %flipped to i64
%gep.0 = getelementptr inbounds i32, i32 addrspace(1)* %p, i64 %index.0
%gep.1 = getelementptr inbounds i32, i32 addrspace(1)* %p, i64 %index.1
%val0 = load i32, i32 addrspace(1)* %gep.0
%val1 = load i32, i32 addrspace(1)* %gep.1
ret void
}