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
|
; RUN: opt < %s -mtriple=arm-eabi -mattr=+neon -interleaved-access -S | FileCheck %s
; CHECK-LABEL: @extract_user_basic(
; CHECK: %vldN = call { <4 x i32>, <4 x i32> } @llvm.arm.neon.vld2.v4i32.p0i8
; CHECK: %[[R:.+]] = extractvalue { <4 x i32>, <4 x i32> } %vldN, 0
; CHECK: extractelement <4 x i32> %[[R]], i64 1
define void @extract_user_basic(<8 x i32>* %A, i1 %C) {
entry:
%L = load <8 x i32>, <8 x i32>* %A, align 8
%S = shufflevector <8 x i32> %L, <8 x i32> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
br i1 %C, label %if.then, label %if.merge
if.then:
%E = extractelement <8 x i32> %L, i32 2
br label %if.merge
if.merge:
ret void
}
; CHECK-LABEL: @extract_user_multi(
; CHECK: %vldN = call { <4 x i32>, <4 x i32> } @llvm.arm.neon.vld2.v4i32.p0i8
; CHECK: %[[R:.+]] = extractvalue { <4 x i32>, <4 x i32> } %vldN, 0
; CHECK: extractelement <4 x i32> %[[R]], i64 0
; CHECK: extractelement <4 x i32> %[[R]], i64 1
define void @extract_user_multi(<8 x i32>* %A, i1 %C) {
entry:
%L = load <8 x i32>, <8 x i32>* %A, align 8
%S = shufflevector <8 x i32> %L, <8 x i32> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
br i1 %C, label %if.then, label %if.merge
if.then:
%E1 = extractelement <8 x i32> %L, i32 0
br label %if.merge
if.merge:
%E2 = extractelement <8 x i32> %L, i32 2
ret void
}
; CHECK-LABEL: @extract_user_multi_no_dom(
; CHECK-NOT: %vldN = call { <4 x i32>, <4 x i32> } @llvm.arm.neon.vld2.v4i32.p0i8
define void @extract_user_multi_no_dom(<8 x i32>* %A, i1 %C) {
entry:
%L = load <8 x i32>, <8 x i32>* %A, align 8
%E1 = extractelement <8 x i32> %L, i32 0
br i1 %C, label %if.then, label %if.merge
if.then:
%S = shufflevector <8 x i32> %L, <8 x i32> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%E2 = extractelement <8 x i32> %L, i32 2
br label %if.merge
if.merge:
ret void
}
; CHECK-LABEL: @extract_user_wrong_const_index(
; CHECK-NOT: %vldN = call { <4 x i32>, <4 x i32> } @llvm.arm.neon.vld2.v4i32.p0i8
define void @extract_user_wrong_const_index(<8 x i32>* %A) {
entry:
%L = load <8 x i32>, <8 x i32>* %A, align 8
%S = shufflevector <8 x i32> %L, <8 x i32> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%E = extractelement <8 x i32> %L, i32 1
ret void
}
; CHECK-LABEL: @extract_user_undef_index(
; CHECK-NOT: %vldN = call { <4 x i32>, <4 x i32> } @llvm.arm.neon.vld2.v4i32.p0i8
define void @extract_user_undef_index(<8 x i32>* %A) {
entry:
%L = load <8 x i32>, <8 x i32>* %A, align 8
%S = shufflevector <8 x i32> %L, <8 x i32> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%E = extractelement <8 x i32> %L, i32 undef
ret void
}
; CHECK-LABEL: @extract_user_var_index(
; CHECK-NOT: %vldN = call { <4 x i32>, <4 x i32> } @llvm.arm.neon.vld2.v4i32.p0i8
define void @extract_user_var_index(<8 x i32>* %A, i32 %I) {
entry:
%L = load <8 x i32>, <8 x i32>* %A, align 8
%S = shufflevector <8 x i32> %L, <8 x i32> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%E = extractelement <8 x i32> %L, i32 %I
ret void
}
|
