Merge #591: Make bench_internal obey secp256k1_fe_sqrt's contract wrt aliasing.
b76e45d
Make bench_internal obey secp256k1_fe_sqrt's contract wrt aliasing. (Gregory Maxwell)
Pull request description:
Bench_internal was previously incorrect but wasn't detected by -DVERIFY until PR #551.
Tree-SHA512: 5ecb9e3ba63ddf28cde4012154dbb1dda9b7178016d970dba58a4af20c31aa1ec3458ba2623541233fb16fceff7b3053054d6eee0229d0bfb6281d1a10554e9f
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@ -184,9 +184,11 @@ void bench_field_inverse_var(void* arg) {
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void bench_field_sqrt(void* arg) {
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int i;
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bench_inv *data = (bench_inv*)arg;
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secp256k1_fe t;
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for (i = 0; i < 20000; i++) {
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secp256k1_fe_sqrt(&data->fe_x, &data->fe_x);
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t = data->fe_x;
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secp256k1_fe_sqrt(&data->fe_x, &t);
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secp256k1_fe_add(&data->fe_x, &data->fe_y);
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}
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}
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