Viewing file:  test-cast.c (1.48 KB) -rw-r--r--
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#include <stdlib.h>
#include <stdio.h>
#include <string.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:
char
my_casts (int x)
{
return (char)(long) x;
}
*/
gcc_jit_type *int_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
gcc_jit_type *long_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_LONG);
gcc_jit_type *return_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_CHAR);
gcc_jit_param *x =
gcc_jit_context_new_param (
ctxt,
NULL,
int_type, "x");
gcc_jit_param *params[1] = {x};
gcc_jit_function *func =
gcc_jit_context_new_function (ctxt,
NULL,
GCC_JIT_FUNCTION_EXPORTED,
return_type,
"my_casts",
1, params, 0);
gcc_jit_block *initial =
gcc_jit_function_new_block (func, "initial");
gcc_jit_block_end_with_return(initial, NULL,
gcc_jit_context_new_cast(ctxt,
NULL,
gcc_jit_context_new_cast(ctxt,
NULL,
gcc_jit_param_as_rvalue(x),
long_type
),
return_type
));
}
void
verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
{
typedef int (*my_casts_fn_type) (int);
CHECK_NON_NULL (result);
my_casts_fn_type my_casts =
(my_casts_fn_type)gcc_jit_result_get_code (result, "my_casts");
CHECK_NON_NULL (my_casts);
char val = my_casts (10);
note ("my_casts returned: %d", val);
CHECK_VALUE (val, 10);
}
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