| /* PR middle-end/97189 - ICE on redeclaration of a function with VLA argument |
| and attribute access |
| { dg-do compile } |
| { dg-options "-Wall" } */ |
| |
| #define RW(...) __attribute__ ((access (read_write, __VA_ARGS__))) |
| |
| RW (2, 3) void f1 (int n, int[n], int); |
| /* { dg-warning "attribute 'access \\(read_write, 2, 3\\)' positional argument 2 conflicts with previous designation by argument 3" "warning" { target *-*-* } .-1 } |
| { dg-message "designating the bound of variable length array argument 2" "note" { target *-*-* } .-2 } */ |
| |
| void call_f1 (int *p) |
| { |
| /* Verify that a warning is issued. Ideally, it seems the VLA bound |
| should take precedence over the attribute and the warning would |
| reference argument 1 but since the conflict in the redeclarations |
| of the function is already diagnosed don't test that (and let it |
| be acceptable for this warning to reference argument 3). */ |
| f1 (-1, p, -1); |
| // { dg-warning "argument \\d value -1 is negative" "warning" { target *-*-* } .-1 } |
| } |
| |
| RW (2) void f2 (int, int[*], int); |
| // { dg-message "previously declared as a variable length array 'int\\\[\\\*]'" "note" { target *-*-* } .-1 } |
| RW (2, 3) void f2 (int, int[], int); |
| // { dg-warning "argument 2 of type 'int\\\[]' declared as an ordinary array" "warning" { target *-*-* } .-1 } |
| |
| void call_f2 (int *p) |
| { |
| f2 (-1, p, 0); |
| |
| /* Verify that the attribute access on the redeclaration of f2() takes |
| precedence over the one on the first declaration. */ |
| f2 (0, p, -1); |
| // { dg-warning "argument 3 value -1 is negative" "warning" { target *-*-* } .-1 } |
| } |