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// There were two related problems here, depending on the vintage.  At

// one time:

//

//    typedef struct A { ... } A __attribute__ ((aligned (16)));

//

// would cause original_types to go into an infinite loop.  At other

// times, the attributes applied to an explicit typedef would be lost

// (check_b3 would have a negative size).

// First check that the declaration is accepted and has an effect.

typedef struct A { int i; } A __attribute__ ((aligned (16)));

int check_A[__alignof__ (A) >= 16 ? 1 : -1];

// Check that the alignment is only applied to the typedef.

struct B { int i; };

struct B b1;

typedef struct B B __attribute__((aligned (16)));

struct B b2;

B b3;

int check_b1[__alignof__ (b1) == __alignof__ (b2) ? 1 : -1];

int check_b3[__alignof__ (b3) >= 16 ? 1 : -1];