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comparison gcc/testsuite/jit.dg/test-error-dereference-field-of-non-pointer.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 #include <stdlib.h>
2 #include <stdio.h>
3
4 #include "libgccjit.h"
5
6 #include "harness.h"
7
8 struct foo
9 {
10 int x;
11 int y;
12 };
13
14 void
15 create_code (gcc_jit_context *ctxt, void *user_data)
16 {
17 /* Let's try to inject the equivalent of:
18 void
19 test_bogus_dereference ()
20 {
21 struct foo tmp;
22 tmp->x = tmp->y;
23 }
24 i.e. where tmp is *not* a pointer.
25 */
26 gcc_jit_type *void_type =
27 gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
28 gcc_jit_type *int_type =
29 gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
30
31 /* Map "struct foo". */
32 gcc_jit_field *x =
33 gcc_jit_context_new_field (ctxt,
34 NULL,
35 int_type,
36 "x");
37 gcc_jit_field *y =
38 gcc_jit_context_new_field (ctxt,
39 NULL,
40 int_type,
41 "y");
42 gcc_jit_field *foo_fields[] = {x, y};
43 gcc_jit_struct *struct_foo =
44 gcc_jit_context_new_struct_type (ctxt, NULL, "foo", 2, foo_fields);
45
46 /* Build the test function. */
47 gcc_jit_function *test_fn =
48 gcc_jit_context_new_function (ctxt, NULL,
49 GCC_JIT_FUNCTION_EXPORTED,
50 void_type,
51 "test_bogus_dereference",
52 0, NULL,
53 0);
54 gcc_jit_lvalue *tmp =
55 gcc_jit_function_new_local (test_fn, NULL,
56 gcc_jit_struct_as_type (struct_foo),
57 "tmp");
58
59 gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
60
61 /* Erroneous: tmp->x = ... */
62 gcc_jit_lvalue *lvalue =
63 gcc_jit_rvalue_dereference_field (
64 gcc_jit_lvalue_as_rvalue (tmp),
65 NULL,
66 x);
67
68 /* Erroneous: ... = tmp->y; */
69 gcc_jit_rvalue *rvalue =
70 gcc_jit_lvalue_as_rvalue (
71 gcc_jit_rvalue_dereference_field (
72 gcc_jit_lvalue_as_rvalue (tmp),
73 NULL,
74 y));
75
76 gcc_jit_block_add_assignment (
77 block,
78 NULL,
79 lvalue, rvalue);
80
81 gcc_jit_block_end_with_void_return (block, NULL);
82 }
83
84 void
85 verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
86 {
87 CHECK_VALUE (result, NULL);
88
89 /* Verify that the correct error message was emitted. */
90 CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
91 ("gcc_jit_rvalue_dereference_field:"
92 " dereference of non-pointer tmp (type: struct foo)"
93 " when accessing ->x"));
94 }
95