builtins-bpf-preserve-field-info-3.c
1.48 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
// REQUIRES: bpf-registered-target
// RUN: %clang -target bpf -emit-llvm -S -g -Xclang -disable-llvm-passes %s -o - | FileCheck %s
#define _(x, y) (__builtin_preserve_type_info((x), (y)))
struct s {
char a;
};
typedef int __int;
enum AA {
VAL1 = 1,
VAL2 = 2,
};
unsigned unit1() {
struct s v = {};
return _(v, 0) + _(*(struct s *)0, 0);
}
// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 0, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S:[0-9]+]]
// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 1, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S]]
unsigned unit2() {
__int n;
return _(n, 1) + _(*(__int *)0, 1);
}
// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 2, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_INT:[0-9]+]]
// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 3, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_INT]]
unsigned unit3() {
enum AA t;
return _(t, 0) + _(*(enum AA *)0, 1);
}
// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 4, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[ENUM_AA:[0-9]+]]
// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 5, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[ENUM_AA]]
// CHECK: ![[ENUM_AA]] = !DICompositeType(tag: DW_TAG_enumeration_type, name: "AA"
// CHECK: ![[TYPEDEF_INT]] = !DIDerivedType(tag: DW_TAG_typedef, name: "__int"
// CHECK: ![[STRUCT_S]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s"