gcc/testsuite/jit.dg/test-error-unreachable-block.c

   1 #include <math.h>
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4
   5 #include "libgccjit.h"
   6
   7 #include "harness.h"
   8
   9 void
  10 create_code (gcc_jit_context *ctxt, void *user_data)
  11 {
  12   /* Let's try to inject the equivalent of:
  13        void
  14        test_fn ()
  15        {
  16          return;
  17
  18          return;
  19        }
  20      where the second block is unreachable.
  21   */
  22   gcc_jit_type *void_t =
  23     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
  24
  25   /* Build the test_fn.  */
  26   gcc_jit_function *test_fn =
  27     gcc_jit_context_new_function (ctxt, NULL,
  28                                   GCC_JIT_FUNCTION_EXPORTED,
  29                                   void_t,
  30                                   "test_fn",
  31                                   0, NULL,
  32                                   0);
  33   gcc_jit_block *initial =
  34     gcc_jit_function_new_block (test_fn, "a");
  35   gcc_jit_block *unreachable =
  36     gcc_jit_function_new_block (test_fn, "b");
  37
  38   gcc_jit_block_end_with_void_return (initial, NULL);
  39
  40   gcc_jit_block_end_with_void_return (unreachable, NULL);
  41 }
  42
  43 void
  44 verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
  45 {
  46   CHECK_VALUE (result, NULL);
  47
  48   CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
  49                       "unreachable block: b");
  50 }