(root)/
gcc-13.2.0/
gcc/
testsuite/
jit.dg/
test-validly-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, but have it
      21       survive validation (PR jit/66546).
      22    */
      23    gcc_jit_context_set_bool_allow_unreachable_blocks (ctxt, 1);
      24  
      25    gcc_jit_type *void_t =
      26      gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
      27  
      28    /* Build the test_fn.  */
      29    gcc_jit_function *test_fn =
      30      gcc_jit_context_new_function (ctxt, NULL,
      31                                    GCC_JIT_FUNCTION_EXPORTED,
      32                                    void_t,
      33                                    "test_fn",
      34                                    0, NULL,
      35                                    0);
      36    gcc_jit_block *initial =
      37      gcc_jit_function_new_block (test_fn, "a");
      38    gcc_jit_block *unreachable =
      39      gcc_jit_function_new_block (test_fn, "b");
      40  
      41    gcc_jit_block_end_with_void_return (initial, NULL);
      42  
      43    gcc_jit_block_end_with_void_return (unreachable, NULL);
      44  }
      45  
      46  void
      47  verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
      48  {
      49    /* Ensure that the "unreachable blocks" validator was ignored.  */
      50    CHECK_NON_NULL (result);
      51  }