/* PR c++/94346 - ICE due to handle_copy_attribute { dg-do compile } { dg-options "-Wall" } */ #define ATTR(...) __attribute__ ((__VA_ARGS__)) #if __cplusplus > 199711L # define SA(expr) static_assert (expr, #expr) #elif __cplusplus # define SA(expr) \ typedef __attribute__ ((unused)) char Assert[!(expr) ? -1 : 1] #else # define SA(expr) _Static_assert (expr, #expr) #endif typedef struct ATTR (packed) A { ATTR (packed) unsigned bf: 1; } A; int bar (void); struct C { char c; ATTR (copy ((bar (), ((struct A *)(0))[0]))) int i; /* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */ }; /* Verify the attribute has been copied. */ SA (__builtin_offsetof (struct C, i) == 1); /* Verify attribute copy can copy from the type a comma expression. */ ATTR (alloc_size (1)) void* alloc1 (int); ATTR (copy ((bar (), alloc1))) void* alloc2 (int, int); ATTR (copy ((bar (), alloc1))) void alloc3 (int); /* { dg-warning "'alloc_size' attribute ignored on a function returning 'void'" } */ typedef ATTR (alloc_size (1)) void* F (int); ATTR (copy ((bar (), (F*)0))) void* alloc4 (int, int); ATTR (copy ((bar (), (F*)0))) void alloc5 (int, int); /* { dg-warning "'alloc_size' attribute ignored on a function returning 'void'" } */