clang/test/CodeGen/bpf-decl-tag-extern-func-args.c

   1 // REQUIRES: bpf-registered-target
   2 // RUN: %clang -target bpf -S -emit-llvm -g -O2 -o - %s  | FileCheck %s
   3
   4 #define __decl_tag(x) __attribute__((btf_decl_tag(x)))
   5
   6 extern void foo(int aa __decl_tag("aa_tag"), long bb __decl_tag("bb_tag"));
   7 extern void bar(char cc __decl_tag("cc_tag"));
   8 extern void buz(int __decl_tag("buz_arg_tag"));
   9
  10 void 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"}