| // REQUIRES: bpf-registered-target |
| // RUN: %clang -target bpf -emit-llvm -S -g -Xclang -disable-llvm-passes %s -o - | FileCheck %s |
| |
| #pragma clang attribute push (__attribute__((preserve_access_index)), apply_to = record) |
| typedef struct { |
| int a; |
| } __t; |
| typedef union { |
| int b; |
| } __u; |
| #pragma clang attribute pop |
| |
| int test1(__t *arg) { return arg->a; } |
| int test2(const __u *arg) { return arg->b; } |
| |
| |
| // CHECK: define dso_local i32 @test1 |
| // CHECK: call i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.__ts(%struct.__t* %{{[0-9a-z]+}}, i32 0, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_STRUCT:[0-9]+]] |
| // CHECK: define dso_local i32 @test2 |
| // CHECK: call %union.__u* @llvm.preserve.union.access.index.p0s_union.__us.p0s_union.__us(%union.__u* %{{[0-9a-z]+}}, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[CONST_TYPEDEF:[0-9]+]] |
| // |
| // CHECK: ![[TYPEDEF_STRUCT]] = !DIDerivedType(tag: DW_TAG_typedef, name: "__t" |
| // CHECK: ![[CONST_TYPEDEF]] = !DIDerivedType(tag: DW_TAG_const_type, baseType: ![[TYPEDEF_UNION:[0-9]+]] |
| // CHECK: ![[TYPEDEF_UNION]] = !DIDerivedType(tag: DW_TAG_typedef, name: "__u" |
