gcc/testsuite/jit.dg/test-error-call-through-ptr-with-non-function.c

   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      void
  14      test_fn (void *some_ptr)
  15      {
  16         ((some_unspecified_fn_ptr_type)some_ptr) (42);
  17      }
  18
  19      and verify that the API complains about the 42 not being a
  20      function pointer.  */
  21   gcc_jit_type *void_type =
  22     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
  23   gcc_jit_type *void_ptr_type =
  24     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID_PTR);
  25   gcc_jit_type *int_type =
  26     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
  27
  28   /* Build the test_fn.  */
  29   gcc_jit_param *some_ptr =
  30     gcc_jit_context_new_param (ctxt, NULL, void_ptr_type, "some_ptr");
  31
  32   gcc_jit_function *test_fn =
  33     gcc_jit_context_new_function (ctxt, NULL,
  34                                   GCC_JIT_FUNCTION_EXPORTED,
  35                                   void_type,
  36                                   "test_fn",
  37                                   1, &some_ptr,
  38                                   0);
  39   gcc_jit_rvalue *arg =
  40     gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 42);
  41
  42   /* ((some_unspecified_fn_ptr_type)some_ptr) (42); */
  43   gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
  44   gcc_jit_block_add_eval (
  45     block, NULL,
  46     gcc_jit_context_new_call_through_ptr (
  47       ctxt,
  48       NULL,
  49       /* This is not a function pointer.  */
  50       gcc_jit_param_as_rvalue (some_ptr),
  51       1, &arg));
  52   gcc_jit_block_end_with_void_return (block, NULL);
  53 }
  54
  55 void
  56 verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
  57 {
  58   CHECK_VALUE (result, NULL);
  59
  60   /* Verify that the correct error message was emitted.  */
  61   CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
  62                       ("gcc_jit_context_new_call_through_ptr:"
  63                        " fn_ptr is not a function ptr: some_ptr type: void *"));
  64 }
  65