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#include <stdlib.h>
#include <stdio.h>
#include "libgccjit.h"
#include "harness.h"
#ifdef __cplusplus
extern "C" {
#endif
extern void
internally_called_function (int i, int j, int k);
#ifdef __cplusplus
}
#endif
void
create_code (gcc_jit_context *ctxt, void *user_data)
{
/* Let's try to inject the equivalent of:
extern void internally_called_function (int i, int j, int k);
static void
internal_test_caller (int a)
{
internally_called_function (a * 3, a * 4, a * 5);
}
typedef void (*fn_ptr_type) (int);
fn_ptr_type
get_test_caller (void)
{
// Verify that we can assign function pointers to variables
fn_ptr_type p;
p = internal_test_caller;
return p;
}
*/
int i;
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);
/* Declare the imported function. */
gcc_jit_param *params[3];
params[0] =
gcc_jit_context_new_param (ctxt, NULL, int_type, "i");
params[1] =
gcc_jit_context_new_param (ctxt, NULL, int_type, "j");
params[2] =
gcc_jit_context_new_param (ctxt, NULL, int_type, "k");
gcc_jit_function *called_fn =
gcc_jit_context_new_function (ctxt, NULL,
GCC_JIT_FUNCTION_IMPORTED,
void_type,
"internally_called_function",
3, params,
0);
/* Build the test_caller fn. */
gcc_jit_param *param_a =
gcc_jit_context_new_param (ctxt, NULL, int_type, "a");
gcc_jit_function *test_caller =
gcc_jit_context_new_function (ctxt, NULL,
GCC_JIT_FUNCTION_EXPORTED,
void_type,
"internal_test_caller",
1, ¶m_a,
0);
/* "a * 3, a * 4, a * 5" */
gcc_jit_rvalue *args[3];
for (i = 0; i < 3; i++)
args[i]
= gcc_jit_context_new_binary_op
(ctxt, NULL,
GCC_JIT_BINARY_OP_MULT,
int_type,
gcc_jit_param_as_rvalue (param_a),
gcc_jit_context_new_rvalue_from_int (ctxt,
int_type,
(i + 3) ));
gcc_jit_block *block = gcc_jit_function_new_block (test_caller, NULL);
gcc_jit_block_add_eval (
block, NULL,
gcc_jit_context_new_call (ctxt,
NULL,
called_fn,
3, args));
gcc_jit_block_end_with_void_return (block, NULL);
gcc_jit_type *fn_ptr_type
= gcc_jit_context_new_function_ptr_type (ctxt, NULL,
void_type,
1, &int_type,
0);
/* Build the get_test_caller fn. */
gcc_jit_function *get_test_caller =
gcc_jit_context_new_function (ctxt, NULL,
GCC_JIT_FUNCTION_EXPORTED,
fn_ptr_type,
"get_test_caller",
0, NULL,
0);
block = gcc_jit_function_new_block (get_test_caller, NULL);
/* fn_ptr_type p; */
gcc_jit_lvalue *local_p
= gcc_jit_function_new_local (get_test_caller, NULL,
fn_ptr_type, "p");
/* p = internal_test_caller; */
gcc_jit_block_add_assignment (block, NULL,
local_p,
gcc_jit_function_get_address (test_caller,
NULL));
/* return p; */
gcc_jit_block_end_with_return (block, NULL,
gcc_jit_lvalue_as_rvalue (local_p));
}
static int called_with[3];
extern void
internally_called_function (int i, int j, int k)
{
called_with[0] = i;
called_with[1] = j;
called_with[2] = k;
}
void
verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
{
typedef void (*test_caller_type) (int);
typedef test_caller_type (*get_test_caller_type) (void);
CHECK_NON_NULL (result);
get_test_caller_type get_test_caller =
(get_test_caller_type)gcc_jit_result_get_code (result, "get_test_caller");
CHECK_NON_NULL (get_test_caller);
test_caller_type test_caller = (test_caller_type)get_test_caller ();
CHECK_NON_NULL (test_caller);
called_with[0] = 0;
called_with[1] = 0;
called_with[2] = 0;
/* Call the JIT-generated function. */
test_caller (5);
/* Verify that it correctly called "internally_called_function". */
CHECK_VALUE (called_with[0], 15);
CHECK_VALUE (called_with[1], 20);
CHECK_VALUE (called_with[2], 25);
}
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