clang/test/CodeGenCXX/cp-blocks-linetables.cpp

   1 // RUN: %clang_cc1 -fblocks -debug-info-kind=limited -emit-llvm %s -o - | FileCheck %s
   2 // Ensure that we generate a line table entry for the block cleanup.
   3 // CHECK: define {{.*}} @__main_block_invoke
   4 // CHECK: _NSConcreteStackBlock
   5 // CHECK: call {{.*}} @_Block_object_dispose{{.*}}, !dbg ![[L1:[0-9]+]]
   6 // CHECK: ret
   7
   8 void * _NSConcreteStackBlock;
   9 #ifdef __cplusplus
  10 extern "C" void exit(int);
  11 #else
  12 extern void exit(int);
  13 #endif
  14
  15 enum numbers {
  16   zero, one, two, three, four
  17 };
  18
  19 typedef enum numbers (^myblock)(enum numbers);
  20
  21
  22 double test(myblock I) {
  23   return I(three);
  24 }
  25
  26 int main() {
  27   __block enum numbers x = one;
  28   __block enum numbers y = two;
  29
  30   /* Breakpoint for first Block function.  */
  31   myblock CL = ^(enum numbers z)
  32     { enum numbers savex = x;
  33       { __block enum numbers x = savex;
  34         y = z;
  35         if (y != three)
  36           exit (6);
  37         test (
  38               /* Breakpoint for second Block function.  */
  39               ^ (enum numbers z) {
  40                 if (y != three) {
  41                   exit(1);
  42                 }
  43                 if (x != one)
  44                   exit(2);
  45                 x = z;
  46                 if (x != three)
  47                   exit(3);
  48                 if (y != three)
  49                   exit(4);
  50                 return (enum numbers) four;
  51               });}
  52       return x;
  53     };
  54
  55   enum numbers res = (enum numbers)test(CL);
  56
  57   if (res != one)
  58     exit (5);
  59   return 0;
  60 }