From 756fa007bd8313514ddc45a4052d5bdc70ddea48 Mon Sep 17 00:00:00 2001
From: jsing <jsing@openbsd.org>
Date: Thu, 5 Jan 2023 04:44:20 +0000
Subject: [PATCH] Add additional shift benchmarks that are useful on BN_BITS2
 == 32 platforms

---
 regress/lib/libcrypto/bn/bn_shift.c | 58 ++++++++++++++++++++++++++++-
 1 file changed, 56 insertions(+), 2 deletions(-)

diff --git a/regress/lib/libcrypto/bn/bn_shift.c b/regress/lib/libcrypto/bn/bn_shift.c
index 743a911cbee..2335ae62128 100644
--- a/regress/lib/libcrypto/bn/bn_shift.c
+++ b/regress/lib/libcrypto/bn/bn_shift.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bn_shift.c,v 1.5 2022/12/23 02:13:15 jsing Exp $ */
+/*	$OpenBSD: bn_shift.c,v 1.6 2023/01/05 04:44:20 jsing Exp $ */
 /*
  * Copyright (c) 2022 Joel Sing <jsing@openbsd.org>
  *
@@ -391,6 +391,12 @@ benchmark_bn_lshift_1(BIGNUM *bn)
 	benchmark_bn_lshift(bn, 1);
 }
 
+static void
+benchmark_bn_lshift_16(BIGNUM *bn)
+{
+	benchmark_bn_lshift(bn, 16);
+}
+
 static void
 benchmark_bn_lshift_32(BIGNUM *bn)
 {
@@ -403,6 +409,18 @@ benchmark_bn_lshift_64(BIGNUM *bn)
 	benchmark_bn_lshift(bn, 64);
 }
 
+static void
+benchmark_bn_lshift_65(BIGNUM *bn)
+{
+	benchmark_bn_lshift(bn, 65);
+}
+
+static void
+benchmark_bn_lshift_80(BIGNUM *bn)
+{
+	benchmark_bn_lshift(bn, 80);
+}
+
 static void
 benchmark_bn_lshift_127(BIGNUM *bn)
 {
@@ -461,6 +479,18 @@ benchmark_bn_rshift_64(BIGNUM *bn)
 	benchmark_bn_rshift(bn, 64);
 }
 
+static void
+benchmark_bn_rshift_65(BIGNUM *bn)
+{
+	benchmark_bn_rshift(bn, 65);
+}
+
+static void
+benchmark_bn_rshift_80(BIGNUM *bn)
+{
+	benchmark_bn_rshift(bn, 80);
+}
+
 static void
 benchmark_bn_rshift_127(BIGNUM *bn)
 {
@@ -481,6 +511,10 @@ struct benchmark benchmarks[] = {
 		.desc = "BN_lshift(_, _, 1)",
 		.func = benchmark_bn_lshift_1,
 	},
+	{
+		.desc = "BN_lshift(_, _, 16)",
+		.func = benchmark_bn_lshift_16,
+	},
 	{
 		.desc = "BN_lshift(_, _, 32)",
 		.func = benchmark_bn_lshift_32,
@@ -489,6 +523,14 @@ struct benchmark benchmarks[] = {
 		.desc = "BN_lshift(_, _, 64)",
 		.func = benchmark_bn_lshift_64,
 	},
+	{
+		.desc = "BN_lshift(_, _, 65)",
+		.func = benchmark_bn_lshift_65,
+	},
+	{
+		.desc = "BN_lshift(_, _, 80)",
+		.func = benchmark_bn_lshift_80,
+	},
 	{
 		.desc = "BN_lshift(_, _, 127)",
 		.func = benchmark_bn_lshift_127,
@@ -502,13 +544,25 @@ struct benchmark benchmarks[] = {
 		.func = benchmark_bn_rshift_1,
 	},
 	{
-		.desc = "BN_rshift(_, _, 32)",
+		.desc = "BN_rshift(_, _, 16)",
+		.func = benchmark_bn_rshift_32,
+	},
+	{
+		.desc = "BN_rshift(_, _, 16)",
 		.func = benchmark_bn_rshift_32,
 	},
 	{
 		.desc = "BN_rshift(_, _, 64)",
 		.func = benchmark_bn_rshift_64,
 	},
+	{
+		.desc = "BN_rshift(_, _, 65)",
+		.func = benchmark_bn_rshift_65,
+	},
+	{
+		.desc = "BN_rshift(_, _, 80)",
+		.func = benchmark_bn_rshift_80,
+	},
 	{
 		.desc = "BN_rshift(_, _, 127)",
 		.func = benchmark_bn_rshift_127,
-- 
2.20.1