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1; RUN: opt -S -rewrite-statepoints-for-gc < %s | FileCheck %s
2; RUN: opt -S -passes=rewrite-statepoints-for-gc < %s | FileCheck %s
3
4; CHECK: declare i8 addrspace(1)* @some_function_ret_deref()
5; CHECK: define i8 addrspace(1)* @test_deref_arg(i8 addrspace(1)* %a)
6; CHECK: define i8 addrspace(1)* @test_deref_or_null_arg(i8 addrspace(1)* %a)
7; CHECK: define i8 addrspace(1)* @test_noalias_arg(i8 addrspace(1)* %a)
8
9declare void @foo()
10
11declare i8 addrspace(1)* @some_function() "gc-leaf-function"
12
13declare void @some_function_consumer(i8 addrspace(1)*) "gc-leaf-function"
14
15declare dereferenceable(4) i8 addrspace(1)* @some_function_ret_deref() "gc-leaf-function"
16declare noalias i8 addrspace(1)* @some_function_ret_noalias() "gc-leaf-function"
17
18define i8 addrspace(1)* @test_deref_arg(i8 addrspace(1)* dereferenceable(4) %a) gc "statepoint-example" {
19entry:
20  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
21  ret i8 addrspace(1)* %a
22}
23
24define i8 addrspace(1)* @test_deref_or_null_arg(i8 addrspace(1)* dereferenceable_or_null(4) %a) gc "statepoint-example" {
25entry:
26  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
27  ret i8 addrspace(1)* %a
28}
29
30define i8 addrspace(1)* @test_noalias_arg(i8 addrspace(1)* noalias %a) gc "statepoint-example" {
31entry:
32  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
33  ret i8 addrspace(1)* %a
34}
35
36define i8 addrspace(1)* @test_deref_retval() gc "statepoint-example" {
37; CHECK-LABEL: @test_deref_retval(
38; CHECK: %a = call i8 addrspace(1)* @some_function()
39entry:
40  %a = call dereferenceable(4) i8 addrspace(1)* @some_function()
41  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
42  ret i8 addrspace(1)* %a
43}
44
45define i8 addrspace(1)* @test_deref_or_null_retval() gc "statepoint-example" {
46; CHECK-LABEL: @test_deref_or_null_retval(
47; CHECK: %a = call i8 addrspace(1)* @some_function()
48entry:
49  %a = call dereferenceable_or_null(4) i8 addrspace(1)* @some_function()
50  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
51  ret i8 addrspace(1)* %a
52}
53
54define i8 addrspace(1)* @test_noalias_retval() gc "statepoint-example" {
55; CHECK-LABEL: @test_noalias_retval(
56; CHECK: %a = call i8 addrspace(1)* @some_function()
57entry:
58  %a = call noalias i8 addrspace(1)* @some_function()
59  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
60  ret i8 addrspace(1)* %a
61}
62
63define i8 @test_md(i8 addrspace(1)* %ptr) gc "statepoint-example" {
64; CHECK-LABEL: @test_md(
65; CHECK: %tmp = load i8, i8 addrspace(1)* %ptr, align 1, !tbaa [[TAG_old:!.*]]
66entry:
67  %tmp = load i8, i8 addrspace(1)* %ptr, !tbaa !0
68  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
69  ret i8 %tmp
70}
71
72; Same as test_md() above, but with new-format TBAA metadata.
73define i8 @test_md_new(i8 addrspace(1)* %ptr) gc "statepoint-example" {
74; CHECK-LABEL: @test_md_new(
75; CHECK: %tmp = load i8, i8 addrspace(1)* %ptr, align 1, !tbaa [[TAG_new:!.*]]
76entry:
77  %tmp = load i8, i8 addrspace(1)* %ptr, !tbaa !4
78  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
79  ret i8 %tmp
80}
81
82define i8 addrspace(1)* @test_decl_only_attribute(i8 addrspace(1)* %ptr) gc "statepoint-example" {
83; CHECK-LABEL: @test_decl_only_attribute(
84; No change here, but the prototype of some_function_ret_deref should have changed.
85; CHECK: call i8 addrspace(1)* @some_function_ret_deref()
86entry:
87  %a = call i8 addrspace(1)* @some_function_ret_deref()
88  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
89  ret i8 addrspace(1)* %a
90}
91
92define i8 addrspace(1)* @test_decl_only_noalias(i8 addrspace(1)* %ptr) gc "statepoint-example" {
93; CHECK-LABEL: @test_decl_only_noalias(
94; No change here, but the prototype of some_function_ret_noalias should have changed.
95; CHECK: call i8 addrspace(1)* @some_function_ret_noalias()
96entry:
97  %a = call i8 addrspace(1)* @some_function_ret_noalias()
98  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
99  ret i8 addrspace(1)* %a
100}
101
102define i8 addrspace(1)* @test_callsite_arg_attribute(i8 addrspace(1)* %ptr) gc "statepoint-example" {
103; CHECK-LABEL: @test_callsite_arg_attribute(
104; CHECK: call void @some_function_consumer(i8 addrspace(1)* %ptr)
105entry:
106  call void @some_function_consumer(i8 addrspace(1)* dereferenceable(4) noalias %ptr)
107  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
108  ret i8 addrspace(1)* %ptr
109}
110
111!0 = !{!1, !2, i64 0, i64 1}  ; TAG_old
112!1 = !{!"type_base_old", !2, i64 0}
113!2 = !{!"type_access_old", !3}
114!3 = !{!"root"}
115
116!4 = !{!5, !6, i64 0, i64 1, i64 1}  ; TAG_new
117!5 = !{!3, i64 1, !"type_base_new", !6, i64 0, i64 1}
118!6 = !{!3, i64 1, !"type_access_new"}
119
120; CHECK-DAG: [[ROOT:!.*]] = !{!"root"}
121; CHECK-DAG: [[TYPE_access_old:!.*]] = !{!"type_access_old", [[ROOT]]}
122; CHECK-DAG: [[TYPE_base_old:!.*]] = !{!"type_base_old", [[TYPE_access_old]], i64 0}
123; CHECK-DAG: [[TAG_old]] = !{[[TYPE_base_old]], [[TYPE_access_old]], i64 0}
124; CHECK-DAG: [[TYPE_access_new:!.*]] = !{[[ROOT]], i64 1, !"type_access_new"}
125; CHECK-DAG: [[TYPE_base_new:!.*]] = !{[[ROOT]], i64 1, !"type_base_new", [[TYPE_access_new]], i64 0, i64 1}
126; CHECK-DAG: [[TAG_new]] = !{[[TYPE_base_new]], [[TYPE_access_new]], i64 0, i64 1}
127