/* PR optimization/8634 */ /* Contributed by Glen Nakamura */ extern void abort (void); struct foo { char a, b, c, d, e, f, g, h, i, j; }; int test1 () { const char X[8] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H' }; char buffer[8]; __builtin_memcpy (buffer, X, 8); if (buffer[0] != 'A' || buffer[1] != 'B' || buffer[2] != 'C' || buffer[3] != 'D' || buffer[4] != 'E' || buffer[5] != 'F' || buffer[6] != 'G' || buffer[7] != 'H') abort (); return 0; } int test2 () { const char X[10] = { 'A', 'B', 'C', 'D', 'E' }; char buffer[10]; __builtin_memcpy (buffer, X, 10); if (buffer[0] != 'A' || buffer[1] != 'B' || buffer[2] != 'C' || buffer[3] != 'D' || buffer[4] != 'E' || buffer[5] != '\0' || buffer[6] != '\0' || buffer[7] != '\0' || buffer[8] != '\0' || buffer[9] != '\0') abort (); return 0; } int test3 () { const struct foo X = { a : 'A', c : 'C', e : 'E', g : 'G', i : 'I' }; char buffer[10]; __builtin_memcpy (buffer, &X, 10); if (buffer[0] != 'A' || buffer[1] != '\0' || buffer[2] != 'C' || buffer[3] != '\0' || buffer[4] != 'E' || buffer[5] != '\0' || buffer[6] != 'G' || buffer[7] != '\0' || buffer[8] != 'I' || buffer[9] != '\0') abort (); return 0; } int test4 () { const struct foo X = { .b = 'B', .d = 'D', .f = 'F', .h = 'H' , .j = 'J' }; char buffer[10]; __builtin_memcpy (buffer, &X, 10); if (buffer[0] != '\0' || buffer[1] != 'B' || buffer[2] != '\0' || buffer[3] != 'D' || buffer[4] != '\0' || buffer[5] != 'F' || buffer[6] != '\0' || buffer[7] != 'H' || buffer[8] != '\0' || buffer[9] != 'J') abort (); return 0; } int main () { test1 (); test2 (); test3 (); test4 (); return 0; }