diff --git a/src/3rdparty/argon2/CMakeLists.txt b/src/3rdparty/argon2/CMakeLists.txt
index 0217382af..2f1fc0a90 100644
--- a/src/3rdparty/argon2/CMakeLists.txt
+++ b/src/3rdparty/argon2/CMakeLists.txt
@@ -17,7 +17,7 @@ set(ARGON2_SOURCES
 
 set(ARGON2_X86_64_ENABLED ON)
 set(ARGON2_X86_64_LIBS    argon2-sse2 argon2-ssse3 argon2-xop argon2-avx2 argon2-avx512f)
-set(ARGON2_X86_64_SOURCES arch/x86_64/lib/argon2-arch.c arch/x86_64/lib/cpu-flags.c)
+set(ARGON2_X86_64_SOURCES arch/x86_64/lib/argon2-arch.c)
 
 if (CMAKE_C_COMPILER_ID MATCHES MSVC)
     function(add_feature_impl FEATURE MSVC_FLAG DEF)
diff --git a/src/3rdparty/argon2/arch/x86_64/lib/argon2-arch.c b/src/3rdparty/argon2/arch/x86_64/lib/argon2-arch.c
index 48d2a77e1..b5f0b5e2c 100644
--- a/src/3rdparty/argon2/arch/x86_64/lib/argon2-arch.c
+++ b/src/3rdparty/argon2/arch/x86_64/lib/argon2-arch.c
@@ -4,7 +4,6 @@
 
 #include "impl-select.h"
 
-#include "cpu-flags.h"
 #include "argon2-sse2.h"
 #include "argon2-ssse3.h"
 #include "argon2-xop.h"
@@ -26,7 +25,7 @@ void fill_segment_default(const argon2_instance_t *instance,
 void argon2_get_impl_list(argon2_impl_list *list)
 {
     static const argon2_impl IMPLS[] = {
-        { "x86_64",     NULL,           fill_segment_default },
+        { "x86_64",     NULL,                     fill_segment_default },
         { "SSE2",       xmrig_ar2_check_sse2,     xmrig_ar2_fill_segment_sse2 },
         { "SSSE3",      xmrig_ar2_check_ssse3,    xmrig_ar2_fill_segment_ssse3 },
         { "XOP",        xmrig_ar2_check_xop,      xmrig_ar2_fill_segment_xop },
@@ -34,8 +33,6 @@ void argon2_get_impl_list(argon2_impl_list *list)
         { "AVX-512F",   xmrig_ar2_check_avx512f,  xmrig_ar2_fill_segment_avx512f },
     };
 
-    cpu_flags_get();
-
     list->count = sizeof(IMPLS) / sizeof(IMPLS[0]);
     list->entries = IMPLS;
 }
diff --git a/src/3rdparty/argon2/arch/x86_64/lib/argon2-avx2.c b/src/3rdparty/argon2/arch/x86_64/lib/argon2-avx2.c
index 976fd4711..c8bf56f52 100644
--- a/src/3rdparty/argon2/arch/x86_64/lib/argon2-avx2.c
+++ b/src/3rdparty/argon2/arch/x86_64/lib/argon2-avx2.c
@@ -9,8 +9,6 @@
 #   include <intrin.h>
 #endif
 
-#include "cpu-flags.h"
-
 #define r16 (_mm256_setr_epi8( \
      2,  3,  4,  5,  6,  7,  0,  1, \
     10, 11, 12, 13, 14, 15,  8,  9, \
@@ -325,10 +323,9 @@ void xmrig_ar2_fill_segment_avx2(const argon2_instance_t *instance, argon2_posit
     }
 }
 
-int xmrig_ar2_check_avx2(void)
-{
-    return cpu_flags_have_avx2();
-}
+
+extern int cpu_flags_has_avx2(void);
+int xmrig_ar2_check_avx2(void) { return cpu_flags_has_avx2(); }
 
 #else
 
diff --git a/src/3rdparty/argon2/arch/x86_64/lib/argon2-avx512f.c b/src/3rdparty/argon2/arch/x86_64/lib/argon2-avx512f.c
index 994f35022..f9df1b875 100644
--- a/src/3rdparty/argon2/arch/x86_64/lib/argon2-avx512f.c
+++ b/src/3rdparty/argon2/arch/x86_64/lib/argon2-avx512f.c
@@ -10,8 +10,6 @@
 #   include <intrin.h>
 #endif
 
-#include "cpu-flags.h"
-
 #define ror64(x, n) _mm512_ror_epi64((x), (n))
 
 static __m512i f(__m512i x, __m512i y)
@@ -310,10 +308,8 @@ void xmrig_ar2_fill_segment_avx512f(const argon2_instance_t *instance, argon2_po
     }
 }
 
-int xmrig_ar2_check_avx512f(void)
-{
-    return cpu_flags_have_avx512f();
-}
+extern int cpu_flags_has_avx512f(void);
+int xmrig_ar2_check_avx512f(void) { return cpu_flags_has_avx512f(); }
 
 #else
 
diff --git a/src/3rdparty/argon2/arch/x86_64/lib/argon2-sse2.c b/src/3rdparty/argon2/arch/x86_64/lib/argon2-sse2.c
index 1e992b54e..099f851f8 100644
--- a/src/3rdparty/argon2/arch/x86_64/lib/argon2-sse2.c
+++ b/src/3rdparty/argon2/arch/x86_64/lib/argon2-sse2.c
@@ -7,8 +7,6 @@
 #   include <intrin.h>
 #endif
 
-#include "cpu-flags.h"
-
 #define ror64_16(x) \
     _mm_shufflehi_epi16( \
         _mm_shufflelo_epi16((x), _MM_SHUFFLE(0, 3, 2, 1)), \
@@ -107,10 +105,8 @@ void xmrig_ar2_fill_segment_sse2(const argon2_instance_t *instance, argon2_posit
     fill_segment_128(instance, position);
 }
 
-int xmrig_ar2_check_sse2(void)
-{
-    return cpu_flags_have_sse2();
-}
+extern int cpu_flags_has_sse2(void);
+int xmrig_ar2_check_sse2(void) { return cpu_flags_has_sse2(); }
 
 #else
 
diff --git a/src/3rdparty/argon2/arch/x86_64/lib/argon2-ssse3.c b/src/3rdparty/argon2/arch/x86_64/lib/argon2-ssse3.c
index b848e3ebe..58a022ca6 100644
--- a/src/3rdparty/argon2/arch/x86_64/lib/argon2-ssse3.c
+++ b/src/3rdparty/argon2/arch/x86_64/lib/argon2-ssse3.c
@@ -9,8 +9,6 @@
 #   include <intrin.h>
 #endif
 
-#include "cpu-flags.h"
-
 #define r16 (_mm_setr_epi8( \
      2,  3,  4,  5,  6,  7,  0,  1, \
     10, 11, 12, 13, 14, 15,  8,  9))
@@ -119,10 +117,8 @@ void xmrig_ar2_fill_segment_ssse3(const argon2_instance_t *instance, argon2_posi
     fill_segment_128(instance, position);
 }
 
-int xmrig_ar2_check_ssse3(void)
-{
-    return cpu_flags_have_ssse3();
-}
+extern int cpu_flags_has_ssse3(void);
+int xmrig_ar2_check_ssse3(void) { return cpu_flags_has_ssse3(); }
 
 #else
 
diff --git a/src/3rdparty/argon2/arch/x86_64/lib/argon2-xop.c b/src/3rdparty/argon2/arch/x86_64/lib/argon2-xop.c
index 2e8b965b5..6fc6aa4b2 100644
--- a/src/3rdparty/argon2/arch/x86_64/lib/argon2-xop.c
+++ b/src/3rdparty/argon2/arch/x86_64/lib/argon2-xop.c
@@ -9,8 +9,6 @@
 #   include <intrin.h>
 #endif
 
-#include "cpu-flags.h"
-
 #define ror64(x, c) _mm_roti_epi64((x), -(c))
 
 static __m128i f(__m128i x, __m128i y)
@@ -107,10 +105,8 @@ void xmrig_ar2_fill_segment_xop(const argon2_instance_t *instance, argon2_positi
     fill_segment_128(instance, position);
 }
 
-int xmrig_ar2_check_xop(void)
-{
-    return cpu_flags_have_xop();
-}
+extern int cpu_flags_has_xop(void);
+int xmrig_ar2_check_xop(void) { return cpu_flags_has_xop(); }
 
 #else
 
diff --git a/src/3rdparty/argon2/arch/x86_64/lib/cpu-flags.c b/src/3rdparty/argon2/arch/x86_64/lib/cpu-flags.c
deleted file mode 100644
index cd13cb015..000000000
--- a/src/3rdparty/argon2/arch/x86_64/lib/cpu-flags.c
+++ /dev/null
@@ -1,129 +0,0 @@
-#include <stdbool.h>
-#include <stdint.h>
-
-
-#include "cpu-flags.h"
-
-#include <stdio.h>
-
-#ifdef _MSC_VER
-#   include <intrin.h>
-#else
-#   include <cpuid.h>
-#endif
-
-#ifndef bit_OSXSAVE
-#   define bit_OSXSAVE (1 << 27)
-#endif
-
-#ifndef bit_SSE2
-#   define bit_SSE2 (1 << 26)
-#endif
-
-#ifndef bit_SSSE3
-#   define bit_SSSE3 (1 << 9)
-#endif
-
-#ifndef bit_AVX2
-#   define bit_AVX2 (1 << 5)
-#endif
-
-#ifndef bit_AVX512F
-#   define bit_AVX512F (1 << 16)
-#endif
-
-#ifndef bit_XOP
-#   define bit_XOP (1 << 11)
-#endif
-
-#define PROCESSOR_INFO    (1)
-#define EXTENDED_FEATURES (7)
-
-#define EAX_Reg  (0)
-#define EBX_Reg  (1)
-#define ECX_Reg  (2)
-#define EDX_Reg  (3)
-
-
-enum {
-    X86_64_FEATURE_SSE2     = (1 << 0),
-    X86_64_FEATURE_SSSE3    = (1 << 1),
-    X86_64_FEATURE_XOP      = (1 << 2),
-    X86_64_FEATURE_AVX2     = (1 << 3),
-    X86_64_FEATURE_AVX512F  = (1 << 4),
-};
-
-static unsigned int cpu_flags;
-
-
-static inline void cpuid(uint32_t level, int32_t output[4])
-{
-#   ifdef _MSC_VER
-    __cpuid(output, (int) level);
-#   else
-    __cpuid_count(level, 0, output[0], output[1], output[2], output[3]);
-#   endif
-}
-
-
-static bool has_feature(uint32_t level, uint32_t reg, int32_t bit)
-{
-    int32_t cpu_info[4] = { 0 };
-    cpuid(level, cpu_info);
-
-    return (cpu_info[reg] & bit) != 0;
-}
-
-
-void cpu_flags_get(void)
-{
-    if (has_feature(PROCESSOR_INFO, EDX_Reg, bit_SSE2)) {
-        cpu_flags |= X86_64_FEATURE_SSE2;
-    }
-
-    if (has_feature(PROCESSOR_INFO, ECX_Reg, bit_SSSE3)) {
-        cpu_flags |= X86_64_FEATURE_SSSE3;
-    }
-
-    if (!has_feature(PROCESSOR_INFO, ECX_Reg, bit_OSXSAVE)) {
-        return;
-    }
-
-    if (has_feature(EXTENDED_FEATURES, EBX_Reg, bit_AVX2)) {
-        cpu_flags |= X86_64_FEATURE_AVX2;
-    }
-
-    if (has_feature(EXTENDED_FEATURES, EBX_Reg, bit_AVX512F)) {
-        cpu_flags |= X86_64_FEATURE_AVX512F;
-    }
-
-    if (has_feature(0x80000001, ECX_Reg, bit_XOP)) {
-        cpu_flags |= X86_64_FEATURE_XOP;
-    }
-}
-
-int cpu_flags_have_sse2(void)
-{
-    return cpu_flags & X86_64_FEATURE_SSE2;
-}
-
-int cpu_flags_have_ssse3(void)
-{
-    return cpu_flags & X86_64_FEATURE_SSSE3;
-}
-
-int cpu_flags_have_xop(void)
-{
-    return cpu_flags & X86_64_FEATURE_XOP;
-}
-
-int cpu_flags_have_avx2(void)
-{
-    return cpu_flags & X86_64_FEATURE_AVX2;
-}
-
-int cpu_flags_have_avx512f(void)
-{
-    return cpu_flags & X86_64_FEATURE_AVX512F;
-}
-
diff --git a/src/3rdparty/argon2/arch/x86_64/lib/cpu-flags.h b/src/3rdparty/argon2/arch/x86_64/lib/cpu-flags.h
deleted file mode 100644
index b546a8ba1..000000000
--- a/src/3rdparty/argon2/arch/x86_64/lib/cpu-flags.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef ARGON2_CPU_FLAGS_H
-#define ARGON2_CPU_FLAGS_H
-
-void cpu_flags_get(void);
-
-int cpu_flags_have_sse2(void);
-int cpu_flags_have_ssse3(void);
-int cpu_flags_have_xop(void);
-int cpu_flags_have_avx2(void);
-int cpu_flags_have_avx512f(void);
-
-#endif // ARGON2_CPU_FLAGS_H
diff --git a/src/3rdparty/argon2/lib/impl-select.c b/src/3rdparty/argon2/lib/impl-select.c
index aa5d9911e..bc7d14383 100644
--- a/src/3rdparty/argon2/lib/impl-select.c
+++ b/src/3rdparty/argon2/lib/impl-select.c
@@ -2,79 +2,81 @@
 #include <string.h>
 
 #include "impl-select.h"
-
 #include "3rdparty/argon2.h"
 
-#define BENCH_SAMPLES 1024
+
+extern uint64_t uv_hrtime(void);
+
+
+#define BENCH_SAMPLES 1024U
 #define BENCH_MEM_BLOCKS 512
 
-static argon2_impl selected_argon_impl = {
-    "default", NULL, fill_segment_default
-};
+
+#ifdef _MSC_VER
+#   define strcasecmp  _stricmp
+#endif
+
+
+static argon2_impl selected_argon_impl = { "default", NULL, fill_segment_default };
+
 
 /* the benchmark routine is not thread-safe, so we can use a global var here: */
 static block memory[BENCH_MEM_BLOCKS];
 
-static uint64_t benchmark_impl(const argon2_impl *impl) {
-    clock_t time;
-    unsigned int i;
-    uint64_t bench;
-    argon2_instance_t instance;
-    argon2_position_t pos;
 
+static uint64_t benchmark_impl(const argon2_impl *impl) {
     memset(memory, 0, sizeof(memory));
 
-    instance.version = ARGON2_VERSION_NUMBER;
-    instance.memory = memory;
-    instance.passes = 1;
-    instance.memory_blocks = BENCH_MEM_BLOCKS;
+    argon2_instance_t instance;
+    instance.version        = ARGON2_VERSION_NUMBER;
+    instance.memory         = memory;
+    instance.passes         = 1;
+    instance.memory_blocks  = BENCH_MEM_BLOCKS;
     instance.segment_length = BENCH_MEM_BLOCKS / ARGON2_SYNC_POINTS;
-    instance.lane_length = instance.segment_length * ARGON2_SYNC_POINTS;
-    instance.lanes = 1;
-    instance.threads = 1;
-    instance.type = Argon2_i;
+    instance.lane_length    = instance.segment_length * ARGON2_SYNC_POINTS;
+    instance.lanes          = 1;
+    instance.threads        = 1;
+    instance.type           = Argon2_id;
 
-    pos.lane = 0;
-    pos.pass = 0;
-    pos.slice = 0;
-    pos.index = 0;
+    argon2_position_t pos;
+    pos.lane    = 0;
+    pos.pass    = 0;
+    pos.slice   = 0;
+    pos.index   = 0;
 
     /* warm-up cache: */
     impl->fill_segment(&instance, pos);
 
     /* OK, now measure: */
-    bench = 0;
-    time = clock();
-    for (i = 0; i < BENCH_SAMPLES; i++) {
+    const uint64_t time = uv_hrtime();
+
+    for (uint32_t i = 0; i < BENCH_SAMPLES; i++) {
         impl->fill_segment(&instance, pos);
     }
-    time = clock() - time;
-    bench = (uint64_t)time;
-    return bench;
+
+    return uv_hrtime() - time;
 }
 
+
 void argon2_select_impl()
 {
     argon2_impl_list impls;
-    unsigned int i;
     const argon2_impl *best_impl = NULL;
     uint64_t best_bench = UINT_MAX;
 
     argon2_get_impl_list(&impls);
 
-    for (i = 0; i < impls.count; i++) {
+    for (uint32_t i = 0; i < impls.count; i++) {
         const argon2_impl *impl = &impls.entries[i];
-        uint64_t bench;
 
         if (impl->check != NULL && !impl->check()) {
             continue;
         }
 
-        bench = benchmark_impl(impl);
-
+        const uint64_t bench = benchmark_impl(impl);
         if (bench < best_bench) {
             best_bench = bench;
-            best_impl = impl;
+            best_impl  = impl;
         }
     }
 
@@ -83,11 +85,13 @@ void argon2_select_impl()
     }
 }
 
+
 void xmrig_ar2_fill_segment(const argon2_instance_t *instance, argon2_position_t position)
 {
     selected_argon_impl.fill_segment(instance, position);
 }
 
+
 const char *argon2_get_impl_name()
 {
     return selected_argon_impl.name;
@@ -97,14 +101,12 @@ const char *argon2_get_impl_name()
 int argon2_select_impl_by_name(const char *name)
 {
     argon2_impl_list impls;
-    unsigned int i;
-
     argon2_get_impl_list(&impls);
 
-    for (i = 0; i < impls.count; i++) {
+    for (uint32_t i = 0; i < impls.count; i++) {
         const argon2_impl *impl = &impls.entries[i];
 
-        if (strcmp(impl->name, name) == 0) {
+        if (strcasecmp(impl->name, name) == 0) {
             selected_argon_impl = *impl;
 
             return 1;
diff --git a/src/backend/cpu/CpuBackend.cpp b/src/backend/cpu/CpuBackend.cpp
index bd8e0ad11..45a968a64 100644
--- a/src/backend/cpu/CpuBackend.cpp
+++ b/src/backend/cpu/CpuBackend.cpp
@@ -277,19 +277,7 @@ void xmrig::CpuBackend::prepare(const Job &nextJob)
 #   ifdef XMRIG_ALGO_ARGON2
     const xmrig::Algorithm::Family f = nextJob.algorithm().family();
     if ((f == Algorithm::ARGON2) || (f == Algorithm::RANDOM_X)) {
-
-        xmrig::String impl = d_ptr->controller->config()->cpu().argon2Impl();
-
-        if (impl.isEmpty()) {
-            if (xmrig::Cpu::info()->hasAVX2()) {
-                impl = "AVX2";
-            }
-            else if (xmrig::Cpu::info()->isX64()) {
-                impl = "SSE2";
-            }
-        }
-
-        if (argon2::Impl::select(impl)) {
+        if (argon2::Impl::select(d_ptr->controller->config()->cpu().argon2Impl())) {
             LOG_INFO("%s use " WHITE_BOLD("argon2") " implementation " CSI "1;%dm" "%s",
                      tag,
                      argon2::Impl::name() == "default" ? 33 : 32,
diff --git a/src/backend/cpu/platform/BasicCpuInfo.cpp b/src/backend/cpu/platform/BasicCpuInfo.cpp
index 2d2367fbb..eb0429805 100644
--- a/src/backend/cpu/platform/BasicCpuInfo.cpp
+++ b/src/backend/cpu/platform/BasicCpuInfo.cpp
@@ -59,7 +59,6 @@ namespace xmrig {
 
 static const std::array<const char *, ICpuInfo::FLAG_MAX> flagNames     = { "aes", "avx2", "avx512f", "bmi2", "osxsave", "pdpe1gb", "sse2", "ssse3", "xop" };
 static const std::array<const char *, ICpuInfo::MSR_MOD_MAX> msrNames   = { "none", "ryzen", "intel", "custom" };
-std::bitset<ICpuInfo::FLAG_MAX> BasicCpuInfo::m_flags;
 
 
 static inline void cpuid(uint32_t level, int32_t output[4])
@@ -134,6 +133,21 @@ static inline bool has_xop()        { return has_feature(0x80000001,
 } // namespace xmrig
 
 
+#ifdef XMRIG_ALGO_ARGON2
+extern "C" {
+
+
+int cpu_flags_has_avx2()    { return xmrig::has_avx2(); }
+int cpu_flags_has_avx512f() { return xmrig::has_avx512f(); }
+int cpu_flags_has_sse2()    { return xmrig::has_sse2(); }
+int cpu_flags_has_ssse3()   { return xmrig::has_ssse3(); }
+int cpu_flags_has_xop()     { return xmrig::has_xop(); }
+
+
+}
+#endif
+
+
 xmrig::BasicCpuInfo::BasicCpuInfo() :
     m_threads(std::thread::hardware_concurrency())
 {
diff --git a/src/backend/cpu/platform/BasicCpuInfo.h b/src/backend/cpu/platform/BasicCpuInfo.h
index 4d0fa745d..ea478dbf1 100644
--- a/src/backend/cpu/platform/BasicCpuInfo.h
+++ b/src/backend/cpu/platform/BasicCpuInfo.h
@@ -67,10 +67,9 @@ protected:
     Vendor m_vendor         = VENDOR_UNKNOWN;
 
 private:
-    static std::bitset<FLAG_MAX> m_flags;
-
     Assembly m_assembly     = Assembly::NONE;
     MsrMod m_msrMod         = MSR_MOD_NONE;
+    std::bitset<FLAG_MAX> m_flags;
 };
 
 
diff --git a/src/backend/cpu/platform/BasicCpuInfo_arm.cpp b/src/backend/cpu/platform/BasicCpuInfo_arm.cpp
index 9191a2b72..653304c8f 100644
--- a/src/backend/cpu/platform/BasicCpuInfo_arm.cpp
+++ b/src/backend/cpu/platform/BasicCpuInfo_arm.cpp
@@ -37,9 +37,6 @@
 #include "3rdparty/rapidjson/document.h"
 
 
-std::bitset<xmrig::ICpuInfo::FLAG_MAX> xmrig::BasicCpuInfo::m_flags;
-
-
 xmrig::BasicCpuInfo::BasicCpuInfo() :
     m_threads(std::thread::hardware_concurrency())
 {
diff --git a/src/crypto/argon2/Impl.cpp b/src/crypto/argon2/Impl.cpp
index d0f267f95..02084a57d 100644
--- a/src/crypto/argon2/Impl.cpp
+++ b/src/crypto/argon2/Impl.cpp
@@ -5,8 +5,8 @@
  * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
  * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
  * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
- * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
- * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ * Copyright 2018-2020 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2020 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -39,10 +39,39 @@ static String implName;
 } // namespace xmrig
 
 
-bool xmrig::argon2::Impl::select(const String &nameHint)
+extern "C" {
+
+
+extern int xmrig_ar2_check_avx512f();
+extern int xmrig_ar2_check_avx2();
+extern int xmrig_ar2_check_ssse3();
+extern int xmrig_ar2_check_sse2();
+
+
+}
+
+
+bool xmrig::argon2::Impl::select(const String &nameHint, bool benchmark)
 {
     if (!selected) {
-        if (nameHint.isEmpty() || argon2_select_impl_by_name(nameHint) == 0) {
+        auto hint = nameHint;
+
+        if (hint.isEmpty() && !benchmark) {
+            if (xmrig_ar2_check_avx512f()) {
+                hint = "AVX-512F";
+            }
+            else if (xmrig_ar2_check_avx2()) {
+                hint = "AVX2";
+            }
+            else if (xmrig_ar2_check_ssse3()) {
+                hint = "SSSE3";
+            }
+            else if (xmrig_ar2_check_sse2()) {
+                hint = "SSE2";
+            }
+        }
+
+        if (hint.isEmpty() || argon2_select_impl_by_name(hint) == 0) {
             argon2_select_impl();
         }
 
diff --git a/src/crypto/argon2/Impl.h b/src/crypto/argon2/Impl.h
index 006dbd35f..aaedec028 100644
--- a/src/crypto/argon2/Impl.h
+++ b/src/crypto/argon2/Impl.h
@@ -5,8 +5,8 @@
  * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
  * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
  * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
- * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
- * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ * Copyright 2018-2020 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2020 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -38,7 +38,7 @@ namespace argon2 {
 class Impl
 {
 public:
-    static bool select(const String &nameHint);
+    static bool select(const String &nameHint, bool benchmark = false);
     static const String &name();
 };