cross-project-tests/debuginfo-tests/dexter-tests/optnone-struct-and-methods.cpp

   1 // RUN: %clang++ -std=gnu++11 -O2 -g %s -o %t
   2 // RUN: %dexter --fail-lt 1.0 -w \
   3 // RUN:     --binary %t --debugger 'lldb' -v -- %s
   4 // RUN: %clang++ -std=gnu++11 -O0 -g %s -o %t
   5 // RUN: %dexter --fail-lt 1.0 -w \
   6 // RUN:     --binary %t --debugger 'lldb' -- %s
   7
   8 // REQUIRES: lldb
   9 // Currently getting intermittent failures on darwin.
  10 // UNSUPPORTED: system-windows, system-darwin
  11
  12 //// Check that the debugging experience with __attribute__((optnone)) at O2
  13 //// matches O0. Test simple structs and methods.
  14
  15 long a_global_ptr[] = { 0xCAFEBABEL, 0xFEEDBEEFL };
  16
  17 namespace {
  18
  19 struct A {
  20   int a;
  21   float b;
  22
  23   enum B {
  24     A_VALUE = 0x1,
  25     B_VALUE = 0x2
  26   };
  27
  28   struct some_data {
  29     enum B other_b;
  30     enum B other_other_b;
  31   };
  32
  33   struct other_data {
  34     union {
  35       void *raw_ptr;
  36       long  *long_ptr;
  37       float *float_ptr;
  38     } a;
  39     struct some_data b;
  40     struct some_data c;
  41   };
  42 private:
  43   struct other_data _data;
  44
  45 public:
  46   struct other_data *getOtherData() { return &_data; }
  47
  48   __attribute__((always_inline,nodebug))
  49   void setSomeData1(A::B value, A::B other_value) {
  50     struct other_data *data = getOtherData();
  51     data->b.other_b = value;
  52     data->b.other_other_b = other_value;
  53   }
  54
  55   __attribute__((always_inline))
  56   void setSomeData2(A::B value, A::B other_value) {
  57     struct other_data *data = getOtherData();
  58     data->c.other_b = value;
  59     data->c.other_other_b = other_value;
  60   }
  61
  62   void setOtherData() {
  63     setSomeData2(A_VALUE, B_VALUE);
  64     getOtherData()->a.long_ptr = &a_global_ptr[0];
  65   }
  66
  67   __attribute__((optnone))
  68   A() {
  69     __builtin_memset(this, 0xFF, sizeof(*this));
  70   } //DexLabel('break_0')
  71   // DexExpectWatchValue('a', '-1', on_line=ref('break_0'))
  72   //// Check b is NaN by comparing it to itself.
  73   // DexExpectWatchValue('this->b == this->b', 'false', on_line=ref('break_0'))
  74   // DexExpectWatchValue('_data.a.raw_ptr == -1', 'true', on_line=ref('break_0'))
  75   // DexExpectWatchValue('_data.a.float_ptr == -1', 'true', on_line=ref('break_0'))
  76   // DexExpectWatchValue('_data.a.float_ptr == -1', 'true', on_line=ref('break_0'))
  77   // DexExpectWatchValue('a_global_ptr[0]', 0xcafebabe, on_line=ref('break_0'))
  78   // DexExpectWatchValue('a_global_ptr[1]', 0xfeedbeef, on_line=ref('break_0'))
  79
  80   __attribute__((optnone))
  81   ~A() {
  82     *getOtherData()->a.long_ptr = 0xADDF00DL;
  83   } //DexLabel('break_1')
  84   // DexExpectWatchValue('_data.a.raw_ptr == a_global_ptr', 'true', on_line=ref('break_1'))
  85   // DexExpectWatchValue('a_global_ptr[0]', 0xaddf00d, on_line=ref('break_1'))
  86
  87   __attribute__((optnone))
  88   long getData() {
  89     setSomeData1(B_VALUE, A_VALUE);
  90     setOtherData();
  91     return getOtherData()->a.long_ptr[1]; //DexLabel('break_2')
  92   }
  93   // DexExpectWatchValue('_data.b.other_b', 'B_VALUE', on_line=ref('break_2'))
  94   // DexExpectWatchValue('_data.b.other_other_b', 'A_VALUE', on_line=ref('break_2'))
  95 };
  96
  97 } // anonymous namespace
  98
  99 int main() {
 100   int result = 0;
 101   {
 102     A a;
 103     result = a.getData();
 104   }
 105   return result;
 106 }