1 files changed, 58 insertions, 0 deletions
diff --git a/vendor/github.com/byzantine-lab/mcl/misc/mul.cpp b/vendor/github.com/byzantine-lab/mcl/misc/mul.cpp
new file mode 100644
index 000000000..146ac33a9
--- /dev/null
+++ b/vendor/github.com/byzantine-lab/mcl/misc/mul.cpp
@@ -0,0 +1,58 @@
+/*
+	sudo cpufreq-set -c 0 -g performance
+	mycl mul.cpp -DMCL_USE_LLVM=1 ../lib/libmcl.a && ./a.out
+*/
+#include <stdio.h>
+#include <mcl/fp.hpp>
+#include <cybozu/xorshift.hpp>
+#include <cybozu/test.hpp>
+#include <cybozu/benchmark.hpp>
+
+typedef mcl::FpT<> Fp;
+
+using namespace mcl::fp;
+
+void dump(const Unit *x, size_t N)
+{
+	for (size_t i = 0; i < N; i++) {
+		printf("%016llx ", (long long)x[N - 1 - i]);
+	}
+	printf("\n");
+}
+
+CYBOZU_TEST_AUTO(mulPre)
+{
+	cybozu::XorShift rg;
+	const char *pTbl[] = {
+		"0x2523648240000001ba344d80000000086121000000000013a700000000000013",
+		"0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffff0000000000000000ffffffff",
+		"6701817056313037086248947066310538444882082605308124576230408038843357549886356779857393369967010764802541005796711440355753503701056323603", // 462 bit
+		"4562440617622195218641171605700291324893228507248559930579192517899275167208677386505912811317371399778642309573594407310688704721375437998252661319722214188251994674360264950082874192246603471", // 640 bit
+		"1552518092300708935148979488462502555256886017116696611139052038026050952686376886330878408828646477950487730697131073206171580044114814391444287275041181139204454976020849905550265285631598444825262999193716468750892846853816057031", // 768 bit
+	};
+	const size_t N = 16;
+	const Mode modeTbl[] = {
+		FP_GMP_MONT,
+#ifdef MCL_USE_LLVM
+		FP_LLVM_MONT,
+#endif
+	};
+	for (size_t j = 0; j < CYBOZU_NUM_OF_ARRAY(modeTbl); j++) {
+		Mode mode = modeTbl[j];
+		printf("%s\n", ModeToStr(mode));
+		for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(pTbl); i++) {
+			const char *p = pTbl[i];
+			Fp::init(p, mode);
+			printf("bitSize=%d\n", (int)Fp::getBitSize());
+			const Op& op = Fp::getOp();
+			Unit x[N], y[N * 2];
+			rg.read(x, N);
+			rg.read(y, N * 2);
+			CYBOZU_BENCH("mul   ", op.fp_mul, y, y, x, op.p);
+			CYBOZU_BENCH("sqr   ", op.fp_sqr, y, y, op.p);
+			CYBOZU_BENCH("mulPre", op.fpDbl_mulPre, y, y, y);
+			CYBOZU_BENCH("sqrPre", op.fpDbl_sqrPre, y, y);
+			CYBOZU_BENCH("mod   ", op.fpDbl_mod, y, y, op.p);
+		}
+	}
+}