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bench: add internal benchmark for secp256k1_fe_normalize_var #1855

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Merged
real-or-random merged 1 commit into from
Jun 9, 2026
+12 −0
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bench: add internal benchmark for secp256k1_fe_normalize_var #1855

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12 changes: 12 additions & 0 deletions src/bench_internal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -194,6 +194,17 @@ static void bench_field_normalize(void* arg, int iters) {
}
}

static void bench_field_normalize_var(void* arg, int iters) {
int i;
bench_inv *data = (bench_inv*)arg;

/* Note that this benchmark measures the optimistic path. The worst-case path with the final
reduction is very unlikely to be needed, so this is representative of the common case. */
for (i = 0; i < iters; i++) {
secp256k1_fe_normalize_var(&data->fe[0]);
}
}

static void bench_field_normalize_weak(void* arg, int iters) {
int i;
bench_inv *data = (bench_inv*)arg;
Expand Down Expand Up @@ -421,6 +432,7 @@ int main(int argc, char **argv) {

if (d || have_flag(argc, argv, "field") || have_flag(argc, argv, "half")) run_benchmark("field_half", bench_field_half, bench_setup, NULL, &data, 10, iters*100);
if (d || have_flag(argc, argv, "field") || have_flag(argc, argv, "normalize")) run_benchmark("field_normalize", bench_field_normalize, bench_setup, NULL, &data, 10, iters*100);
if (d || have_flag(argc, argv, "field") || have_flag(argc, argv, "normalize")) run_benchmark("field_normalize_var", bench_field_normalize_var, bench_setup, NULL, &data, 10, iters*100);
if (d || have_flag(argc, argv, "field") || have_flag(argc, argv, "normalize")) run_benchmark("field_normalize_weak", bench_field_normalize_weak, bench_setup, NULL, &data, 10, iters*100);
if (d || have_flag(argc, argv, "field") || have_flag(argc, argv, "sqr")) run_benchmark("field_sqr", bench_field_sqr, bench_setup, NULL, &data, 10, iters*10);
if (d || have_flag(argc, argv, "field") || have_flag(argc, argv, "mul")) run_benchmark("field_mul", bench_field_mul, bench_setup, NULL, &data, 10, iters*10);
Expand Down