clang/test/CodeGenObjC/block-byref-debuginfo.m

   1 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -debug-info-kind=limited -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
   2
   3 // CHECK: define internal void @__Block_byref_object_copy_({{.*}} !dbg ![[BYREF_COPY_SP:.*]] {
   4 // CHECK: getelementptr inbounds {{.*}}, !dbg ![[BYREF_COPY_LOC:.*]]
   5
   6 // CHECK: !DILocalVariable(name: "foo", {{.*}}type: ![[FOOTY:[0-9]+]])
   7 // CHECK: ![[FOOTY]] = {{.*}}!DICompositeType({{.*}}, name: "Foo"
   8
   9 // CHECK-NOT: DIFlagBlockByrefStruct
  10 // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_1",
  11 // CHECK-SAME:             size: 320, elements: ![[BL_ELTS:[0-9]+]])
  12 // CHECK: ![[BL_ELTS]] = !{{.*}}![[WFOO:[0-9]+]]}
  13
  14 // Test that the foo is aligned at an 8 byte boundary in the DWARF
  15 // expression (256) that locates it inside of the byref descriptor:
  16 // CHECK: ![[WFOO]] = !DIDerivedType(tag: DW_TAG_member, name: "foo",
  17 // CHECK-SAME:                       baseType: ![[PTR:[0-9]+]]
  18 // CHECK-SAME:                       offset: 256)
  19
  20 // CHECK: ![[PTR]] = !DIDerivedType(tag: DW_TAG_pointer_type,
  21 // CHECK-SAME:                      baseType: ![[WRAPPER:[0-9]+]]
  22 // CHECK: ![[WRAPPER]] = !DICompositeType(tag: DW_TAG_structure_type, scope:
  23 // CHECK:                                 elements: ![[WR_ELTS:[0-9]+]])
  24 // CHECK: ![[WR_ELTS]] = !{{.*}}![[WFOO:[0-9]+]]}
  25 // CHECK: ![[WFOO]] = !DIDerivedType(tag: DW_TAG_member, name: "foo",
  26 // CHECK-SAME:                       baseType: ![[FOOTY]]
  27
  28 // CHECK: !DILocalVariable(name: "foo", {{.*}}type: ![[FOOTY]])
  29
  30 // CHECK: ![[BYREF_COPY_SP]] = distinct !DISubprogram(linkageName: "__Block_byref_object_copy_",
  31 // CHECK: ![[BYREF_COPY_LOC]] = !DILocation(line: 0, scope: ![[BYREF_COPY_SP]])
  32
  33 struct Foo {
  34   unsigned char *data;
  35 };
  36
  37 struct Foo2 {
  38   id f0;
  39 };
  40
  41 void (^bptr)(void);
  42
  43 int func(void) {
  44   __attribute__((__blocks__(byref))) struct Foo foo;
  45   ^{ foo.data = 0; }();
  46   __block struct Foo2 foo2;
  47   bptr = ^{ foo2.f0 =0; };
  48   return 0;
  49 }