42 lines · c
1// REQUIRES: bpf-registered-target2// RUN: %clang_cc1 -triple bpf -emit-llvm -debug-info-kind=limited -disable-llvm-passes %s -o - | FileCheck %s3 4#define _(x, y) (__builtin_preserve_type_info((x), (y)))5 6struct s {7 char a;8};9typedef int __int;10enum AA {11 VAL1 = 1,12 VAL2 = 2,13};14 15unsigned unit1() {16 struct s v = {};17 return _(v, 0) + _(*(struct s *)0, 0);18}19 20// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 0, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S:[0-9]+]]21// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 1, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S]]22 23unsigned unit2() {24 __int n;25 return _(n, 1) + _(*(__int *)0, 1);26}27 28// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 2, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_INT:[0-9]+]]29// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 3, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_INT]]30 31unsigned unit3() {32 enum AA t;33 return _(t, 0) + _(*(enum AA *)0, 1);34}35 36// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 4, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[ENUM_AA:[0-9]+]]37// CHECK: call i32 @llvm.bpf.preserve.type.info(i32 5, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[ENUM_AA]]38 39// CHECK: ![[ENUM_AA]] = !DICompositeType(tag: DW_TAG_enumeration_type, name: "AA"40// CHECK: ![[TYPEDEF_INT]] = !DIDerivedType(tag: DW_TAG_typedef, name: "__int"41// CHECK: ![[STRUCT_S]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s"42