File: simd-5.c

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gcc-arm-none-eabi 15%3A7-2018-q2-6
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#define vector64 __attribute__((vector_size(8)))

main(){

 vector64 int  c;
vector64 int a = {1, -1};
vector64 int b = {2, -2};
c = -a + b*b*(-1LL);
/* c is now {5, 3} */

 printf("result is %llx\n", (long long)c); 
}