39 lines · c
1// REQUIRES: bpf-registered-target2// RUN: %clang -target bpf -S -emit-llvm -g -O2 -o - %s | FileCheck %s3 4#define __decl_tag(x) __attribute__((btf_decl_tag(x)))5 6extern void foo(int aa __decl_tag("aa_tag"), long bb __decl_tag("bb_tag"));7extern void bar(char cc __decl_tag("cc_tag"));8extern void buz(int __decl_tag("buz_arg_tag"));9 10void root(void) {11 foo(0, 1);12 bar(0);13 buz(0);14}15// CHECK: [[foo:![0-9]+]] = !DISubprogram(name: "foo", {{.*}}, retainedNodes: [[foo_nodes:![0-9]+]])16// CHECK: [[foo_nodes]] = !{[[aa:![0-9]+]], [[bb:![0-9]+]]}17 18// CHECK: [[aa]] = !DILocalVariable(name: "aa", arg: 1, scope: [[foo]], {{.*}}, annotations: [[aa_annot:![0-9]+]])19// CHECK: [[aa_annot]] = !{[[aa_tag:![0-9]+]]}20// CHECK: [[aa_tag]] = !{!"btf_decl_tag", !"aa_tag"}21 22// CHECK: [[bb]] = !DILocalVariable(name: "bb", arg: 2, scope: [[foo]], {{.*}}, annotations: [[bb_annot:![0-9]+]])23// CHECK: [[bb_annot]] = !{[[bb_tag:![0-9]+]]}24// CHECK: [[bb_tag]] = !{!"btf_decl_tag", !"bb_tag"}25 26// CHECK: [[bar:![0-9]+]] = !DISubprogram(name: "bar", {{.*}}, retainedNodes: [[bar_nodes:![0-9]+]])27// CHECK: [[bar_nodes]] = !{[[cc:![0-9]+]]}28 29// CHECK: [[cc]] = !DILocalVariable(name: "cc", arg: 1, scope: [[bar]], {{.*}}, annotations: [[cc_annot:![0-9]+]])30// CHECK: [[cc_annot]] = !{[[cc_tag:![0-9]+]]}31// CHECK: [[cc_tag]] = !{!"btf_decl_tag", !"cc_tag"}32 33// CHECK: [[buz:![0-9]+]] = !DISubprogram(name: "buz", {{.*}}, retainedNodes: [[buz_nodes:![0-9]+]])34// CHECK: [[buz_nodes]] = !{[[buz_arg:![0-9]+]]}35 36// CHECK: [[buz_arg]] = !DILocalVariable(arg: 1, scope: [[buz]], {{.*}}, annotations: [[buz_arg_annot:![0-9]+]])37// CHECK: [[buz_arg_annot]] = !{[[buz_arg_tag:![0-9]+]]}38// CHECK: [[buz_arg_tag]] = !{!"btf_decl_tag", !"buz_arg_tag"}39