25 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#pragma clang attribute push (__attribute__((preserve_access_index)), apply_to = record)5typedef struct {6 int a;7} __t;8typedef union {9 int b;10} __u;11#pragma clang attribute pop12 13int test1(__t *arg) { return arg->a; }14int test2(const __u *arg) { return arg->b; }15 16 17// CHECK: define dso_local i32 @test118// CHECK: call ptr @llvm.preserve.struct.access.index.p0.p0(ptr elementtype(%struct.__t) %{{[0-9a-z]+}}, i32 0, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_STRUCT:[0-9]+]]19// CHECK: define dso_local i32 @test220// CHECK: call ptr @llvm.preserve.union.access.index.p0.p0(ptr %{{[0-9a-z]+}}, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[CONST_TYPEDEF:[0-9]+]]21//22// CHECK: ![[TYPEDEF_STRUCT]] = !DIDerivedType(tag: DW_TAG_typedef, name: "__t"23// CHECK: ![[CONST_TYPEDEF]] = !DIDerivedType(tag: DW_TAG_const_type, baseType: ![[TYPEDEF_UNION:[0-9]+]]24// CHECK: ![[TYPEDEF_UNION]] = !DIDerivedType(tag: DW_TAG_typedef, name: "__u"25