gcc/testsuite/jit.dg/test-cast.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3 #include <string.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 char
  14 my_casts (int x)
  15 {
  16    return (char)(long) x;
  17 }
  18    */
  19   gcc_jit_type *int_type =
  20     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
  21   gcc_jit_type *long_type =
  22     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_LONG);
  23   gcc_jit_type *return_type =
  24     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_CHAR);
  25
  26   gcc_jit_param *x =
  27     gcc_jit_context_new_param (
  28       ctxt,
  29       NULL,
  30       int_type, "x");
  31   gcc_jit_param *params[1] = {x};
  32   gcc_jit_function *func =
  33     gcc_jit_context_new_function (ctxt,
  34                                   NULL,
  35                                   GCC_JIT_FUNCTION_EXPORTED,
  36                                   return_type,
  37                                   "my_casts",
  38                                   1, params, 0);
  39
  40   gcc_jit_block *initial =
  41     gcc_jit_function_new_block (func, "initial");
  42
  43   gcc_jit_block_end_with_return(initial, NULL,
  44     gcc_jit_context_new_cast(ctxt,
  45         NULL,
  46         gcc_jit_context_new_cast(ctxt,
  47             NULL,
  48             gcc_jit_param_as_rvalue(x),
  49             long_type
  50         ),
  51         return_type
  52     ));
  53 }
  54
  55 void
  56 verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
  57 {
  58   typedef int (*my_casts_fn_type) (int);
  59   CHECK_NON_NULL (result);
  60   my_casts_fn_type my_casts =
  61     (my_casts_fn_type)gcc_jit_result_get_code (result, "my_casts");
  62   CHECK_NON_NULL (my_casts);
  63   char val = my_casts (10);
  64   note ("my_casts returned: %d", val);
  65   CHECK_VALUE (val, 10);
  66 }