Viewing file:  test-bitcast.c (1.36 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.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:
int32_t
my_bitcast (float x)
{
return bitcast(x, int32_t);
}
*/
gcc_jit_type *int32 =
gcc_jit_context_get_int_type (ctxt, 4, 1);
gcc_jit_type *float_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_FLOAT);
gcc_jit_param *x =
gcc_jit_context_new_param (
ctxt,
NULL,
float_type, "x");
gcc_jit_param *params[1] = {x};
gcc_jit_function *func =
gcc_jit_context_new_function (ctxt,
NULL,
GCC_JIT_FUNCTION_EXPORTED,
int32,
"my_bitcast",
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_bitcast(ctxt,
NULL,
gcc_jit_param_as_rvalue(x),
int32
));
}
void
verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
{
typedef int32_t (*my_bitcast_fn_type) (float);
CHECK_NON_NULL (result);
my_bitcast_fn_type my_bitcast =
(my_bitcast_fn_type)gcc_jit_result_get_code (result, "my_bitcast");
CHECK_NON_NULL (my_bitcast);
int32_t val = my_bitcast (3.1415927f);
note ("my_bitcast returned: 0x%x", val);
CHECK_VALUE (val, 0x40490FDB);
}
|
