gcc/testsuite/jit.dg/test-error-param-used-from-other-function.c

#include <stdlib.h>
#include <stdio.h>

#include "libgccjit.h"

#include "harness.h"

void
create_code (gcc_jit_context *ctxt, void *user_data)
{
  /* Let's try to inject the equivalent of:

     void
     fn_one (int i)
     {
     }

     int
     fn_two ()
     {
       return i * 2;
     }

     and verify that the API complains about the use of the param
     from the other function.  */
  gcc_jit_type *void_type =
    gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
  gcc_jit_type *int_type =
    gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);

  gcc_jit_param *param =
    gcc_jit_context_new_param (ctxt, NULL, int_type, "i");

  gcc_jit_context_new_function (ctxt, NULL,
				GCC_JIT_FUNCTION_EXPORTED,
				void_type,
				"fn_one",
				1, &param,
				0);
  gcc_jit_function *fn_two =
    gcc_jit_context_new_function (ctxt, NULL,
                                  GCC_JIT_FUNCTION_EXPORTED,
                                  int_type,
                                  "fn_two",
                                  0, NULL,
                                  0);

  gcc_jit_block *block = gcc_jit_function_new_block (fn_two, NULL);
  /* "return i * 2;", using param i from the wrong function.  */
  gcc_jit_block_end_with_return (
    block,
    NULL,
    gcc_jit_context_new_binary_op (
      ctxt, NULL,
      GCC_JIT_BINARY_OP_MULT,
      int_type,
      gcc_jit_param_as_rvalue (param),
      gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 2)));
}

void
verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
{
  CHECK_VALUE (result, NULL);

  /* Verify that the correct error message was emitted.  */
  CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
		      ("gcc_jit_block_end_with_return:"
		       " rvalue i (type: int)"
		       " has scope limited to function fn_one"
		       " but was used within function fn_two"
		       " (in statement: return i * (int)2;)"));
}