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/* { dg-do compile } */ /* { dg-options "-O" } */ const short __attribute__((vector_size(16))) y = { 0, 1, 2, 3, 4, 5, 6, 7 }; int main (int argc, short *argv[]) { int i = argc; y[i] = 7 - i; /* { dg-error "read-only" } */ return 0; }