cross-project-tests/debuginfo-tests/dexter-tests/optnone-simple-functions.cpp

   1 // RUN: %dexter --fail-lt 1.0 -w \
   2 // RUN:     --builder 'clang' --debugger 'lldb' \
   3 // RUN:     --cflags "-O2 -g" -- %s
   4 // RUN: %dexter --fail-lt 1.0 -w \
   5 // RUN:     --builder 'clang' --debugger 'lldb' \
   6 // RUN:     --cflags "-O0 -g" -- %s
   7
   8 // REQUIRES: lldb, D136396
   9 // UNSUPPORTED: system-windows
  10
  11 //// Check that the debugging experience with __attribute__((optnone)) at O2
  12 //// matches O0. Test simple functions performing simple arithmetic
  13 //// operations and small loops.
  14
  15 __attribute__((optnone))
  16 int test1(int test1_a, int test1_b) {
  17   int test1_result = 0;
  18   // DexLabel('test1_start')
  19   test1_result = test1_a + test1_b; // DexExpectStepOrder(1)
  20   return test1_result; // DexExpectStepOrder(2)
  21   // DexLabel('test1_end')
  22 }
  23 // DexExpectWatchValue('test1_a', 3, from_line=ref('test1_start'), to_line=ref('test1_end'))
  24 // DexExpectWatchValue('test1_b', 4, from_line=ref('test1_start'), to_line=ref('test1_end'))
  25 // DexExpectWatchValue('test1_result', 0, 7, from_line=ref('test1_start'), to_line=ref('test1_end'))
  26
  27 __attribute__((optnone))
  28 int test2(int test2_a, int test2_b) {
  29   int test2_result = test2_a + test2_a + test2_a + test2_a;  // DexExpectStepOrder(3)
  30   // DexLabel('test2_start')
  31   return test2_a << 2;   // DexExpectStepOrder(4)
  32   // DexLabel('test2_end')
  33 }
  34 // DexExpectWatchValue('test2_a', 1, from_line=ref('test2_start'), to_line=ref('test2_end'))
  35 // DexExpectWatchValue('test2_b', 2, from_line=ref('test2_start'), to_line=ref('test2_end'))
  36 // DexExpectWatchValue('test2_result', 4, from_line=ref('test2_start'), to_line=ref('test2_end'))
  37
  38 __attribute__((optnone))
  39 int test3(int test3_a, int test3_b) {
  40   int test3_temp1 = 0, test3_temp2 = 0;
  41   // DexLabel('test3_start')
  42   test3_temp1 = test3_a + 5;   // DexExpectStepOrder(5)
  43   test3_temp2 = test3_b + 5;   // DexExpectStepOrder(6)
  44   if (test3_temp1 > test3_temp2) { // DexExpectStepOrder(7)
  45     test3_temp1 *= test3_temp2;    // DexUnreachable()
  46   }
  47   return test3_temp1; // DexExpectStepOrder(8)
  48   // DexLabel('test3_end')
  49 }
  50 // DexExpectWatchValue('test3_a', 5, from_line=ref('test3_start'), to_line=ref('test3_end'))
  51 // DexExpectWatchValue('test3_b', 6, from_line=ref('test3_start'), to_line=ref('test3_end'))
  52 // DexExpectWatchValue('test3_temp1', 0, 10, from_line=ref('test3_start'), to_line=ref('test3_end'))
  53 // DexExpectWatchValue('test3_temp2', 0, 11, from_line=ref('test3_start'), to_line=ref('test3_end'))
  54
  55 unsigned num_iterations = 4;
  56
  57 __attribute__((optnone))
  58 int test4(int test4_a, int test4_b) {
  59   int val1 = 0, val2 = 0;
  60   // DexLabel('test4_start')
  61
  62   val1 = (test4_a > test4_b) ? test4_a : test4_b; // DexExpectStepOrder(9)
  63   val2 = val1;
  64   val2 += val1; // DexExpectStepOrder(10)
  65
  66   for (unsigned i=0; i != num_iterations; ++i) { // DexExpectStepOrder(11, 13, 15, 17, 19)
  67     val1--;
  68     val2 += i;
  69     if (val2 % 2 == 0) // DexExpectStepOrder(12, 14, 16, 18)
  70       val2 /= 2;
  71   }
  72
  73   return (val1 > val2) ? val2 : val1; // DexExpectStepOrder(20)
  74   // DexLabel('test4_end')
  75 }
  76 // DexExpectWatchValue('test4_a', 1, from_line=ref('test4_start'), to_line=ref('test4_end'))
  77 // DexExpectWatchValue('test4_b', 9, from_line=ref('test4_start'), to_line=ref('test4_end'))
  78 // DexExpectWatchValue('val1', 0, 9, 8, 7, 6, 5, from_line=ref('test4_start'), to_line=ref('test4_end'))
  79 // DexExpectWatchValue('val2', 0, 9, 18, 9, 10, 5, 7, 10, 5, 9, from_line=ref('test4_start'), to_line=ref('test4_end'))
  80
  81 __attribute__((optnone))
  82 int test5(int test5_val) {
  83   int c = 1;      // DexExpectStepOrder(21)
  84   // DexLabel('test5_start')
  85   if (test5_val)  // DexExpectStepOrder(22)
  86     c = 5;        // DexExpectStepOrder(23)
  87   return c ? test5_val : test5_val; // DexExpectStepOrder(24)
  88   // DexLabel('test5_end')
  89 }
  90 // DexExpectWatchValue('test5_val', 7, from_line=ref('test5_start'), to_line=ref('test5_end'))
  91 // DexExpectWatchValue('c', 1, 5, from_line=ref('test5_start'), to_line=ref('test5_end'))
  92
  93 __attribute__((optnone))
  94 int main() {
  95   int main_result = 0;
  96   // DexLabel('main_start')
  97   main_result = test1(3,4);
  98   main_result += test2(1,2);
  99   main_result += test3(5,6);
 100   main_result += test4(1,9);
 101   main_result += test5(7);
 102   return main_result;
 103   // DexLabel('main_end')
 104 }
 105 // DexExpectWatchValue('main_result', 0, 7, 11, 21, 26, 33, from_line=ref('main_start'), to_line=ref('main_end'))