projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1be51a3a MS |
1 | /* PR c++/97201 - ICE in -Warray-bounds writing to result of operator new(0) |
| 2 | Verify that out-of-bounds accesses to memory returned by nothrow operator | |
| 3 | new() are diagnosed. | |
| 4 | { dg-do compile } | |
| 5 | { dg-options "-O2 -Wall -Warray-bounds -ftrack-macro-expansion=0" } */ | |
| 6 | ||
| 7 | #include <new> | |
| 8 | ||
| 9 | typedef __INT32_TYPE__ int32_t; | |
| 10 | ||
| 11 | void sink (void*); | |
| 12 | ||
| 13 | #define OP_NEW(n) operator new (n, std::nothrow) | |
| 14 | #define T(T, n, i) do { \ | |
| 15 | T *p = (T*) OP_NEW (n); \ | |
| 16 | p[i] = 0; \ | |
| 17 | sink (p); \ | |
| 18 | } while (0) | |
| 19 | ||
| 20 | void warn_op_new () | |
| 21 | { | |
| 22 | T (int32_t, 0, 0); // { dg-warning "array subscript 0 is outside array bounds of 'int32_t \\\[0]'" } | |
| a1108556 | 23 | // { dg-message "object of size \\d allocated by '\[^\n\r]*operator new\[^\n\r]*'" "note" { target *-*-* } .-1 } |
| 8e99b5ba HPN |
24 | T (int32_t, 1, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[1]'" } |
| 25 | T (int32_t, 2, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[2]'" } | |
| 26 | T (int32_t, 3, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[3]'" } | |
| 1be51a3a MS |
27 | |
| 28 | T (int32_t, 4, 0); | |
| 29 | ||
| 30 | T (int32_t, 0, 1); // { dg-warning "array subscript 1 is outside array bounds of 'int32_t \\\[0]'" } | |
| 31 | T (int32_t, 1, 1); // { dg-warning "array subscript 1 is outside array bounds " } | |
| 32 | T (int32_t, 2, 1); // { dg-warning "array subscript 1 is outside array bounds " } | |
| 33 | T (int32_t, 3, 1); // { dg-warning "array subscript 1 is outside array bounds " } | |
| 34 | T (int32_t, 4, 1); // { dg-warning "array subscript 1 is outside array bounds " } | |
| 8e99b5ba HPN |
35 | T (int32_t, 5, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[5]" } |
| 36 | T (int32_t, 6, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[6]" } | |
| 37 | T (int32_t, 7, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[7]" } | |
| 1be51a3a MS |
38 | |
| 39 | T (int32_t, 8, 1); | |
| 40 | } | |
| 41 | ||
| 42 | ||
| 43 | void warn_op_array_new () | |
| 44 | { | |
| 45 | #undef OP_NEW | |
| 46 | #define OP_NEW(n) operator new[] (n, std::nothrow) | |
| 47 | ||
| 48 | T (int32_t, 0, 0); // { dg-warning "array subscript 0 is outside array bounds of 'int32_t \\\[0]'" } | |
| a1108556 | 49 | // { dg-message "object of size \\d allocated by '\[^\n\r]*operator new\[^\n\r]*'" "note" { target *-*-* } .-1 } |
| 8e99b5ba HPN |
50 | T (int32_t, 1, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[1]'" } |
| 51 | T (int32_t, 2, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[2]'" } | |
| 52 | T (int32_t, 3, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[3]'" } | |
| 1be51a3a MS |
53 | |
| 54 | T (int32_t, 4, 0); | |
| 55 | ||
| 56 | T (int32_t, 0, 1); // { dg-warning "array subscript 1 is outside array bounds of 'int32_t \\\[0]'" } | |
| 57 | T (int32_t, 1, 1); // { dg-warning "array subscript 1 is outside array bounds " } | |
| 58 | T (int32_t, 2, 1); // { dg-warning "array subscript 1 is outside array bounds " } | |
| 59 | T (int32_t, 3, 1); // { dg-warning "array subscript 1 is outside array bounds " } | |
| 60 | T (int32_t, 4, 1); // { dg-warning "array subscript 1 is outside array bounds " } | |
| 8e99b5ba HPN |
61 | T (int32_t, 5, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[5]" } |
| 62 | T (int32_t, 6, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[6]" } | |
| 63 | T (int32_t, 7, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[7]" } | |
| 1be51a3a MS |
64 | |
| 65 | T (int32_t, 8, 1); | |
| 66 | } |