| /* PR tree-optimization/86532 - Wrong code due to a wrong strlen folding */ |
| |
| extern __SIZE_TYPE__ strlen (const char*); |
| |
| static const char a[2][3] = { "1", "12" }; |
| static const char b[2][2][5] = { { "1", "12" }, { "123", "1234" } }; |
| |
| volatile int v0 = 0; |
| volatile int v1 = 1; |
| volatile int v2 = 2; |
| |
| #define A(expr) \ |
| ((expr) ? (void)0 : (__builtin_printf ("assertion on line %i: %s\n", \ |
| __LINE__, #expr), \ |
| __builtin_abort ())) |
| |
| void test_array_ref_2_3 (void) |
| { |
| A (strlen (a[v0]) == 1); |
| A (strlen (&a[v0][v0]) == 1); |
| A (strlen (&a[0][v0]) == 1); |
| A (strlen (&a[v0][0]) == 1); |
| |
| A (strlen (a[v1]) == 2); |
| A (strlen (&a[v1][0]) == 2); |
| A (strlen (&a[1][v0]) == 2); |
| A (strlen (&a[v1][v0]) == 2); |
| |
| A (strlen (&a[v1][1]) == 1); |
| A (strlen (&a[v1][1]) == 1); |
| |
| A (strlen (&a[v1][2]) == 0); |
| A (strlen (&a[v1][v2]) == 0); |
| |
| int i0 = 0; |
| int i1 = i0 + 1; |
| int i2 = i1 + 1; |
| |
| A (strlen (a[v0]) == 1); |
| A (strlen (&a[v0][v0]) == 1); |
| A (strlen (&a[i0][v0]) == 1); |
| A (strlen (&a[v0][i0]) == 1); |
| |
| A (strlen (a[v1]) == 2); |
| A (strlen (&a[v1][i0]) == 2); |
| A (strlen (&a[i1][v0]) == 2); |
| A (strlen (&a[v1][v0]) == 2); |
| |
| A (strlen (&a[v1][i1]) == 1); |
| A (strlen (&a[v1][i1]) == 1); |
| |
| A (strlen (&a[v1][i2]) == 0); |
| A (strlen (&a[v1][v2]) == 0); |
| } |
| |
| void test_array_off_2_3 (void) |
| { |
| A (strlen (a[0] + 0) == 1); |
| A (strlen (a[0] + v0) == 1); |
| A (strlen (a[v0] + 0) == 1); |
| A (strlen (a[v0] + v0) == 1); |
| |
| A (strlen (a[v1] + 0) == 2); |
| A (strlen (a[1] + v0) == 2); |
| A (strlen (a[v1] + 0) == 2); |
| A (strlen (a[v1] + v0) == 2); |
| |
| A (strlen (a[v1] + 1) == 1); |
| A (strlen (a[v1] + v1) == 1); |
| |
| A (strlen (a[v1] + 2) == 0); |
| A (strlen (a[v1] + v2) == 0); |
| |
| int i0 = 0; |
| int i1 = i0 + 1; |
| int i2 = i1 + 1; |
| |
| A (strlen (a[i0] + i0) == 1); |
| A (strlen (a[i0] + v0) == 1); |
| A (strlen (a[v0] + i0) == 1); |
| A (strlen (a[v0] + v0) == 1); |
| |
| A (strlen (a[v1] + i0) == 2); |
| A (strlen (a[i1] + v0) == 2); |
| A (strlen (a[v1] + i0) == 2); |
| A (strlen (a[v1] + v0) == 2); |
| |
| A (strlen (a[v1] + i1) == 1); |
| A (strlen (a[v1] + v1) == 1); |
| |
| A (strlen (a[v1] + i2) == 0); |
| A (strlen (a[v1] + v2) == 0); |
| } |
| |
| void test_array_ref_2_2_5 (void) |
| { |
| A (strlen (b[0][v0]) == 1); |
| A (strlen (b[v0][0]) == 1); |
| |
| A (strlen (&b[0][0][v0]) == 1); |
| A (strlen (&b[0][v0][0]) == 1); |
| A (strlen (&b[v0][0][0]) == 1); |
| |
| A (strlen (&b[0][v0][v0]) == 1); |
| A (strlen (&b[v0][0][v0]) == 1); |
| A (strlen (&b[v0][v0][0]) == 1); |
| |
| A (strlen (b[0][v1]) == 2); |
| A (strlen (b[v1][0]) == 3); |
| |
| A (strlen (&b[0][0][v1]) == 0); |
| A (strlen (&b[0][v1][0]) == 2); |
| A (strlen (&b[v0][0][0]) == 1); |
| |
| A (strlen (&b[0][v0][v0]) == 1); |
| A (strlen (&b[v0][0][v0]) == 1); |
| A (strlen (&b[v0][v0][0]) == 1); |
| |
| A (strlen (&b[0][v1][v1]) == 1); |
| A (strlen (&b[v1][0][v1]) == 2); |
| A (strlen (&b[v1][v1][0]) == 4); |
| A (strlen (&b[v1][v1][1]) == 3); |
| A (strlen (&b[v1][v1][2]) == 2); |
| |
| int i0 = 0; |
| int i1 = i0 + 1; |
| int i2 = i1 + 1; |
| |
| A (strlen (b[i0][v0]) == 1); |
| A (strlen (b[v0][i0]) == 1); |
| |
| A (strlen (&b[i0][i0][v0]) == 1); |
| A (strlen (&b[i0][v0][i0]) == 1); |
| A (strlen (&b[v0][i0][i0]) == 1); |
| |
| A (strlen (&b[i0][v0][v0]) == 1); |
| A (strlen (&b[v0][i0][v0]) == 1); |
| A (strlen (&b[v0][v0][i0]) == 1); |
| |
| A (strlen (b[i0][v1]) == 2); |
| A (strlen (b[v1][i0]) == 3); |
| |
| A (strlen (&b[i0][i0][v1]) == 0); |
| A (strlen (&b[i0][v1][i0]) == 2); |
| A (strlen (&b[v0][i0][i0]) == 1); |
| |
| A (strlen (&b[i0][v0][v0]) == 1); |
| A (strlen (&b[v0][i0][v0]) == 1); |
| A (strlen (&b[v0][v0][i0]) == 1); |
| |
| A (strlen (&b[i0][v1][v1]) == 1); |
| A (strlen (&b[v1][i0][v1]) == 2); |
| A (strlen (&b[v1][v1][i0]) == 4); |
| A (strlen (&b[v1][v1][i1]) == 3); |
| A (strlen (&b[v1][v1][i2]) == 2); |
| } |
| |
| void test_array_off_2_2_5 (void) |
| { |
| A (strlen (b[0][0] + v0) == 1); |
| A (strlen (b[0][v0] + v0) == 1); |
| A (strlen (b[v0][0] + v0) == 1); |
| A (strlen (b[v0][v0] + v0) == 1); |
| |
| A (strlen (b[0][0] + v1) == 0); |
| A (strlen (b[0][v1] + 0) == 2); |
| A (strlen (b[v0][0] + 0) == 1); |
| |
| A (strlen (b[0][v0] + v0) == 1); |
| A (strlen (b[v0][0] + v0) == 1); |
| A (strlen (b[v0][v0] + 0) == 1); |
| |
| A (strlen (b[0][v1] + v1) == 1); |
| A (strlen (b[v1][0] + v1) == 2); |
| A (strlen (b[v1][v1] + 0) == 4); |
| A (strlen (b[v1][v1] + 1) == 3); |
| A (strlen (b[v1][v1] + 2) == 2); |
| |
| int i0 = 0; |
| int i1 = i0 + 1; |
| int i2 = i1 + 1; |
| |
| A (strlen (b[i0][i0] + v0) == 1); |
| A (strlen (b[i0][v0] + v0) == 1); |
| A (strlen (b[v0][i0] + v0) == 1); |
| A (strlen (b[v0][v0] + v0) == 1); |
| |
| A (strlen (b[i0][i0] + v1) == 0); |
| A (strlen (b[i0][v1] + i0) == 2); |
| A (strlen (b[v0][i0] + i0) == 1); |
| |
| A (strlen (b[i0][v0] + v0) == 1); |
| A (strlen (b[v0][i0] + v0) == 1); |
| A (strlen (b[v0][v0] + i0) == 1); |
| |
| A (strlen (b[i0][v1] + v1) == 1); |
| A (strlen (b[v1][i0] + v1) == 2); |
| A (strlen (b[v1][v1] + i0) == 4); |
| A (strlen (b[v1][v1] + i1) == 3); |
| A (strlen (b[v1][v1] + i2) == 2); |
| } |
| |
| int main () |
| { |
| test_array_ref_2_3 (); |
| test_array_off_2_3 (); |
| |
| test_array_ref_2_2_5 (); |
| test_array_off_2_2_5 (); |
| } |