gcc/testsuite/jit.dg/test-error-mismatching-types-in-assignment-fn-ptr.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      typedef void (*fn_ptr_iii) (int, int, int);
  14      typedef void (*fn_ptr_ifi) (int, float, int);
  15      void
  16      test_fn (void)
  17      {
  18         fn_ptr_iii iii_ptr;
  19         fn_ptr_ifi ifi_ptr;
  20
  21         iii_ptr = NULL;
  22         ifi_ptr = iii_ptr;
  23      }
  24
  25      and verify that the API complains about the mismatching types
  26      in the second assignment (but not the first).
  27   */
  28   gcc_jit_type *void_type =
  29     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
  30   gcc_jit_type *int_type =
  31     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
  32   gcc_jit_type *float_type =
  33     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_FLOAT);
  34
  35   gcc_jit_type *iii_types[] = {int_type, int_type, int_type};
  36   gcc_jit_type *fn_ptr_type_iii
  37     = gcc_jit_context_new_function_ptr_type (ctxt, NULL,
  38                                              void_type,
  39                                              3, iii_types,
  40                                              0);
  41
  42   gcc_jit_type *ifi_types[] = {int_type, float_type, int_type};
  43   gcc_jit_type *fn_ptr_type_ifi
  44     = gcc_jit_context_new_function_ptr_type (ctxt, NULL,
  45                                              void_type,
  46                                              3, ifi_types,
  47                                              0);
  48
  49   gcc_jit_function *test_fn =
  50     gcc_jit_context_new_function (ctxt, NULL,
  51                                   GCC_JIT_FUNCTION_EXPORTED,
  52                                   void_type,
  53                                   "test_fn",
  54                                   0, NULL,
  55                                   0);
  56   gcc_jit_lvalue *iii_ptr =
  57     gcc_jit_function_new_local (
  58       test_fn, NULL, fn_ptr_type_iii, "iii_ptr");
  59   gcc_jit_lvalue *ifi_ptr =
  60     gcc_jit_function_new_local (
  61       test_fn, NULL, fn_ptr_type_ifi, "ifi_ptr");
  62
  63   gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
  64
  65   /* iii_ptr = NULL; */
  66   gcc_jit_block_add_assignment (
  67     block, NULL,
  68     iii_ptr,
  69     gcc_jit_context_null (ctxt, fn_ptr_type_iii));
  70   /* ifi_ptr = iii_ptr; */
  71   gcc_jit_block_add_assignment (
  72     block, NULL,
  73     ifi_ptr,
  74     gcc_jit_lvalue_as_rvalue (iii_ptr));
  75   gcc_jit_block_end_with_void_return (block, NULL);
  76 }
  77
  78 void
  79 verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
  80 {
  81   CHECK_VALUE (result, NULL);
  82
  83   /* Verify that the correct error message was emitted.  */
  84   CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
  85                       "gcc_jit_block_add_assignment:"
  86                       " mismatching types:"
  87                       " assignment to ifi_ptr"
  88                       " (type: void (*) (int, float, int))"
  89                       " from iii_ptr"
  90                       " (type: void (*) (int, int, int))");
  91 }
  92