| #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")); |
| } |
| |