clang/test/CodeGenCXX/instantiate-blocks.cpp

   1 // RUN: %clang_cc1 -fblocks -emit-llvm -o - %s
   2
   3 template <typename T> T foo(T t)
   4 {
   5     void (^block)(int);
   6     return 1;
   7 }
   8
   9 int test1(void)
  10 {
  11     int i = 1;
  12     int b = 2;
  13     i = foo(b);
  14     return 0;
  15 }
  16
  17 template <typename T, typename T1> void foo(T t, T1 r)
  18 {
  19     T block_arg;
  20     __block T1 byref_block_arg;
  21
  22     T1 (^block)(char, T, T1, double) =
  23         ^ T1 (char ch, T arg, T1 arg2, double d1) { byref_block_arg = arg2;
  24                                                     return byref_block_arg + block_arg + arg; };
  25
  26     void (^block2)() = ^{};
  27 }
  28
  29 void test2(void)
  30 {
  31     foo(100, 'a');
  32 }
  33
  34 namespace rdar6182276 {
  35 extern "C" {
  36 int printf(const char *, ...);
  37 }
  38
  39 template <typename T> T foo(T t)
  40 {
  41     void (^testing)(int) = ^(int bar) { printf("bar is %d\n", bar); };
  42     printf("bar is\n");
  43     return 1;
  44 }
  45
  46 template <typename T> void gorf(T t)
  47 {
  48     foo(t);
  49 }
  50
  51
  52 void test(void)
  53 {
  54     gorf(2);
  55 }
  56 }
  57
  58