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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt -passes=instcombine -S < %s | FileCheck %s
declare ptr @g()
declare ptr @use(ptr)
define void @call1() {
; CHECK-LABEL: define void @call1() {
; CHECK-NEXT: [[A:%.*]] = call ptr @g()
; CHECK-NEXT: [[B:%.*]] = getelementptr i8, ptr [[A]], i64 4
; CHECK-NEXT: call void @use(ptr [[B]])
; CHECK-NEXT: ret void
;
%a = call ptr @g()
%b = getelementptr i8, ptr %a, i64 4
call void @use(ptr %b)
ret void
}
define void @call2() {
; CHECK-LABEL: define void @call2() {
; CHECK-NEXT: [[A:%.*]] = call dereferenceable(8) ptr @g()
; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds nuw i8, ptr [[A]], i64 4
; CHECK-NEXT: call void @use(ptr nonnull [[B]])
; CHECK-NEXT: ret void
;
%a = call dereferenceable(8) ptr @g()
%b = getelementptr i8, ptr %a, i64 4
call void @use(ptr %b)
ret void
}
define void @call3() {
; CHECK-LABEL: define void @call3() {
; CHECK-NEXT: [[A:%.*]] = call dereferenceable_or_null(8) ptr @g()
; CHECK-NEXT: [[B:%.*]] = getelementptr i8, ptr [[A]], i64 4
; CHECK-NEXT: call void @use(ptr [[B]])
; CHECK-NEXT: ret void
;
%a = call dereferenceable_or_null(8) ptr @g()
%b = getelementptr i8, ptr %a, i64 4
call void @use(ptr %b)
ret void
}
define void @alloca() {
; CHECK-LABEL: define void @alloca() {
; CHECK-NEXT: [[A:%.*]] = alloca i64, align 8
; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds nuw i8, ptr [[A]], i64 4
; CHECK-NEXT: call void @use(ptr nonnull [[B]])
; CHECK-NEXT: ret void
;
%a = alloca i64
%b = getelementptr i8, ptr %a, i64 4
call void @use(ptr %b)
ret void
}
define void @arg1(ptr %a) {
; CHECK-LABEL: define void @arg1
; CHECK-SAME: (ptr [[A:%.*]]) {
; CHECK-NEXT: [[B:%.*]] = getelementptr i8, ptr [[A]], i64 4
; CHECK-NEXT: call void @use(ptr [[B]])
; CHECK-NEXT: ret void
;
%b = getelementptr i8, ptr %a, i64 4
call void @use(ptr %b)
ret void
}
define void @arg2(ptr dereferenceable(8) %a) {
; CHECK-LABEL: define void @arg2
; CHECK-SAME: (ptr dereferenceable(8) [[A:%.*]]) {
; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds nuw i8, ptr [[A]], i64 4
; CHECK-NEXT: call void @use(ptr nonnull [[B]])
; CHECK-NEXT: ret void
;
%b = getelementptr i8, ptr %a, i64 4
call void @use(ptr %b)
ret void
}
define void @arg3(ptr dereferenceable_or_null(8) %a) {
; CHECK-LABEL: define void @arg3
; CHECK-SAME: (ptr dereferenceable_or_null(8) [[A:%.*]]) {
; CHECK-NEXT: [[B:%.*]] = getelementptr i8, ptr [[A]], i64 4
; CHECK-NEXT: call void @use(ptr [[B]])
; CHECK-NEXT: ret void
;
%b = getelementptr i8, ptr %a, i64 4
call void @use(ptr %b)
ret void
}
|
