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
|
; RUN: opt -safepoint-ir-verifier-print-only -verify-safepoint-ir -S %s 2>&1 | FileCheck %s
define i8 addrspace(1)* @test1(i64 %arg) gc "statepoint-example" {
; CHECK: No illegal uses found by SafepointIRVerifier in: test1
entry:
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0)
ret i8 addrspace(1)* null
}
define i8 addrspace(1)* @test2(i64 %arg) gc "statepoint-example" {
; CHECK: No illegal uses found by SafepointIRVerifier in: test2
entry:
%load_addr = getelementptr i8, i8 addrspace(1)* inttoptr (i64 15 to i8 addrspace(1)*), i64 %arg
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0)
ret i8 addrspace(1)* %load_addr
}
define i8 addrspace(1)* @test3(i64 %arg) gc "statepoint-example" {
; CHECK: No illegal uses found by SafepointIRVerifier in: test3
entry:
%load_addr = getelementptr i32, i32 addrspace(1)* inttoptr (i64 15 to i32 addrspace(1)*), i64 %arg
%load_addr.cast = bitcast i32 addrspace(1)* %load_addr to i8 addrspace(1)*
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0)
ret i8 addrspace(1)* %load_addr.cast
}
define i8 addrspace(1)* @test4(i64 %arg, i1 %cond) gc "statepoint-example" {
; CHECK: No illegal uses found by SafepointIRVerifier in: test4
entry:
%load_addr.1 = getelementptr i8, i8 addrspace(1)* inttoptr (i64 15 to i8 addrspace(1)*), i64 %arg
br i1 %cond, label %split, label %join
split:
%load_addr.2 = getelementptr i8, i8 addrspace(1)* inttoptr (i64 30 to i8 addrspace(1)*), i64 %arg
br label %join
join:
%load_addr = phi i8 addrspace(1)* [%load_addr.1, %entry], [%load_addr.2, %split]
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0)
ret i8 addrspace(1)* %load_addr
}
define i8 addrspace(1)* @test5(i64 %arg, i1 %cond) gc "statepoint-example" {
; CHECK: No illegal uses found by SafepointIRVerifier in: test5
entry:
%load_addr.1 = getelementptr i8, i8 addrspace(1)* inttoptr (i64 15 to i8 addrspace(1)*), i64 %arg
%load_addr.2 = getelementptr i8, i8 addrspace(1)* inttoptr (i64 30 to i8 addrspace(1)*), i64 %arg
%load_addr = select i1 %cond, i8 addrspace(1)* %load_addr.1, i8 addrspace(1)* %load_addr.2
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0)
ret i8 addrspace(1)* %load_addr
}
define i8 addrspace(1)* @test6(i64 %arg, i1 %cond, i8 addrspace(1)* %base) gc "statepoint-example" {
; CHECK-LABEL: Verifying gc pointers in function: test6
; CHECK: Illegal use of unrelocated value found!
entry:
%load_addr.1 = getelementptr i8, i8 addrspace(1)* %base, i64 %arg
br i1 %cond, label %split, label %join
split:
%load_addr.2 = getelementptr i8, i8 addrspace(1)* inttoptr (i64 30 to i8 addrspace(1)*), i64 %arg
br label %join
join:
%load_addr = phi i8 addrspace(1)* [%load_addr.1, %entry], [%load_addr.2, %split]
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0)
ret i8 addrspace(1)* %load_addr
}
declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
|
