clang/test/CodeGenCXX/debug-info-gline-tables-only-codeview.cpp

   1 // RUN: %clang_cc1 %s -triple x86_64-windows-msvc -gcodeview \
   2 // RUN:   -debug-info-kind=line-tables-only -emit-llvm -o - | FileCheck %s
   3 // Checks that clang with "-gline-tables-only" with CodeView emits some debug
   4 // info for variables and types when they appear in function scopes.
   5
   6 namespace NS {
   7 struct C {
   8   void m() {}
   9   // Test externally visible lambda.
  10   void lambda2() { []() {}(); }
  11
  12   // Test naming for function parameters.
  13   void lambda_params(int x = [](){ return 0; }(), int y = [](){ return 1; }()) {}
  14 };
  15 void f() {}
  16 }
  17
  18 // Test non- externally visible lambda.
  19 auto lambda1 = []() { return 1; };
  20
  21 NS::C c;
  22
  23
  24 void test() {
  25   // CHECK: !DISubprogram(name: "f", scope: ![[NS:[0-9]+]],
  26   // CHECK-SAME:          type: ![[F:[0-9]+]]
  27   // CHECK: ![[NS]] = !DINamespace(name: "NS", scope: null)
  28   // CHECK: ![[F]] = !DISubroutineType(types: ![[FTYPE:[0-9]+]])
  29   // CHECK: ![[FTYPE]] = !{null}
  30   NS::f();
  31
  32   // CHECK: ![[M:[0-9]+]] = distinct !DISubprogram(name: "m", scope: ![[C:[0-9]+]],
  33   // CHECK-SAME:                                   type: ![[MTYPE:[0-9]+]],
  34   // CHECK: ![[C]] = !DICompositeType(tag: DW_TAG_structure_type, name: "C",
  35   // CHECK-SAME:                      flags: DIFlagFwdDecl
  36   // CHECK-NOT: identifier
  37   // CHECK: ![[MTYPE]] = !DISubroutineType({{.*}}types: !{{.*}})
  38   c.m();
  39
  40   // CHECK: !DISubprogram(name: "operator()", scope: ![[LAMBDA0:[0-9]+]],
  41   // CHECK: ![[LAMBDA0]] = !DICompositeType(tag: DW_TAG_class_type,
  42   // CHECK-SAME:                            name: "<lambda_0>",
  43   // CHECK-SAME:                            flags: DIFlagFwdDecl
  44   lambda1();
  45
  46   // CHECK: !DISubprogram(name: "operator()", scope: ![[LAMBDA1_1:[0-9]+]],
  47   // CHECK: ![[LAMBDA1_1]] = !DICompositeType(tag: DW_TAG_class_type,
  48   // CHECK-SAME:                              name: "<lambda_1_1>",
  49   // CHECK: !DISubprogram(name: "operator()", scope: ![[LAMBDA2_1:[0-9]+]],
  50   // CHECK: ![[LAMBDA2_1]] = !DICompositeType(tag: DW_TAG_class_type,
  51   // CHECK-SAME:                              name: "<lambda_2_1>",
  52   c.lambda_params();
  53
  54   // CHECK: !DISubprogram(name: "operator()", scope: ![[LAMBDA1:[0-9]+]],
  55   // CHECK: ![[LAMBDA1]] = !DICompositeType(tag: DW_TAG_class_type,
  56   // CHECK-SAME:                            name: "<lambda_1>",
  57   // CHECK-SAME:                            flags: DIFlagFwdDecl
  58   c.lambda2();
  59 }