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#include <stdlib.h>
#include <stdio.h>
#include "libgccjit.h"
#include "harness.h"
struct foo
{
int x;
int y;
};
void
create_code (gcc_jit_context *ctxt, void *user_data)
{
/* Let's try to inject the equivalent of:
void
test_bogus_dereference ()
{
struct foo tmp;
tmp->x = tmp->y;
}
i.e. where tmp is *not* a pointer.
*/
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);
/* Map "struct foo". */
gcc_jit_field *x =
gcc_jit_context_new_field (ctxt,
NULL,
int_type,
"x");
gcc_jit_field *y =
gcc_jit_context_new_field (ctxt,
NULL,
int_type,
"y");
gcc_jit_field *foo_fields[] = {x, y};
gcc_jit_struct *struct_foo =
gcc_jit_context_new_struct_type (ctxt, NULL, "foo", 2, foo_fields);
/* Build the test function. */
gcc_jit_function *test_fn =
gcc_jit_context_new_function (ctxt, NULL,
GCC_JIT_FUNCTION_EXPORTED,
void_type,
"test_bogus_dereference",
0, NULL,
0);
gcc_jit_lvalue *tmp =
gcc_jit_function_new_local (test_fn, NULL,
gcc_jit_struct_as_type (struct_foo),
"tmp");
gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
/* Erroneous: tmp->x = ... */
gcc_jit_lvalue *lvalue =
gcc_jit_rvalue_dereference_field (
gcc_jit_lvalue_as_rvalue (tmp),
NULL,
x);
/* Erroneous: ... = tmp->y; */
gcc_jit_rvalue *rvalue =
gcc_jit_lvalue_as_rvalue (
gcc_jit_rvalue_dereference_field (
gcc_jit_lvalue_as_rvalue (tmp),
NULL,
y));
gcc_jit_block_add_assignment (
block,
NULL,
lvalue, rvalue);
gcc_jit_block_end_with_void_return (block, NULL);
}
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_rvalue_dereference_field:"
" dereference of non-pointer tmp (type: struct foo)"
" when accessing ->x"));
}
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