1  #include <stdlib.h>
       2  #include <stdio.h>
       3  
       4  #include "libgccjit.h"
       5  
       6  #include "harness.h"
       7  
       8  void
       9  create_code (gcc_jit_context *ctxt, void *user_data)
      10  {
      11    /* Let's try to inject the equivalent of:
      12  
      13       char[4096]
      14       test_fn ()
      15       {
      16         int f;
      17         return bitcast(f, char[4096]);
      18       }
      19  
      20       and verify that the API complains about the bad cast.
      21    */
      22    gcc_jit_type *int_type =
      23      gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
      24    gcc_jit_type *char_type =
      25      gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_CHAR);
      26  
      27  
      28    gcc_jit_type *array_type =
      29      gcc_jit_context_new_array_type (ctxt, NULL, char_type, 4096);
      30  
      31    gcc_jit_function *test_fn =
      32      gcc_jit_context_new_function (ctxt, NULL,
      33                                    GCC_JIT_FUNCTION_EXPORTED,
      34                                    array_type,
      35                                    "test_fn",
      36                                    0, NULL,
      37                                    0);
      38    gcc_jit_lvalue *f =
      39      gcc_jit_function_new_local (
      40        test_fn,
      41        NULL,
      42        int_type, "f");
      43  
      44    gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
      45  
      46    gcc_jit_block_end_with_return (
      47      block, NULL,
      48      gcc_jit_context_new_bitcast (ctxt, NULL,
      49  			      gcc_jit_lvalue_as_rvalue (f),
      50  			      array_type));
      51  }
      52  
      53  void
      54  verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
      55  {
      56    CHECK_VALUE (result, NULL);
      57  
      58    /* Verify that the correct error message was emitted.  */
      59    CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
      60  		      "bitcast with types of different sizes");
      61  }
      62