tests: add a CNv4 JIT test

src/crypto/slow-hash.c

@@ -494,25 +494,26 @@ STATIC INLINE int force_software_aes(void)
   return use;
 }
 
+volatile int use_v4_jit_flag = -1;
+
 STATIC INLINE int use_v4_jit(void)
 {
 #if defined(__x86_64__)
-  static int use = -1;
 
-  if (use != -1)
-    return use;
+  if (use_v4_jit_flag != -1)
+    return use_v4_jit_flag;
 
   const char *env = getenv("MONERO_USE_CNV4_JIT");
   if (!env) {
-    use = 0;
+    use_v4_jit_flag = 0;
   }
   else if (!strcmp(env, "0") || !strcmp(env, "no")) {
-    use = 0;
+    use_v4_jit_flag = 0;
   }
   else {
-    use = 1;
+    use_v4_jit_flag = 1;
   }
-  return use;
+  return use_v4_jit_flag;
 #else
   return 0;
 #endif

tests/crypto/CMakeLists.txt

@@ -52,3 +52,17 @@ set_property(TARGET cncrypto-tests
 add_test(
   NAME    cncrypto
   COMMAND cncrypto-tests "${CMAKE_CURRENT_SOURCE_DIR}/tests.txt")
+
+add_executable(cnv4-jit-tests cnv4-jit.c)
+target_link_libraries(cnv4-jit-tests
+  PRIVATE
+    crypto
+    common
+    ${EXTRA_LIBRARIES})
+set_property(TARGET cnv4-jit-tests
+  PROPERTY
+    FOLDER "tests")
+
+add_test(
+  NAME    cnv4-jit
+  COMMAND cnv4-jit-tests 1788000 1789000)

tests/crypto/cnv4-jit.c

@@ -0,0 +1,119 @@
+// Copyright (c) 2019, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "crypto/hash-ops.h"
+
+extern volatile int use_v4_jit_flag;
+
+static int test(const uint8_t *data, size_t len, uint64_t height)
+{
+  char hash0[32], hash1[32];
+  use_v4_jit_flag = 0;
+  cn_slow_hash(data, len, hash0, 4, 0, height);
+  use_v4_jit_flag = 1;
+  cn_slow_hash(data, len, hash1, 4, 0, height);
+  return memcmp(hash0, hash1, 32);
+}
+
+int main(int argc, char **argv)
+{
+  uint8_t data[64];
+  uint64_t start_height = 1788000;
+  uint64_t end_height = 1788001;
+
+  if (argc != 1 && argc != 2 && argc != 3)
+  {
+    fprintf(stderr, "usage: %s [<start_height> [<end_height>]]\n", argv[0]);
+    return 1;
+  }
+  if (argc > 1)
+  {
+    errno = 0;
+    start_height = strtoull(argv[1], NULL, 10);
+    if ((start_height == 0 && errno) || start_height == ULLONG_MAX)
+    {
+      fprintf(stderr, "invalid start_height\n");
+      return 1;
+    }
+    end_height = start_height;
+    if (argc > 2)
+    {
+      errno = 0;
+      end_height = strtoull(argv[2], NULL, 10);
+      if ((end_height == 0 && errno) || end_height == ULLONG_MAX)
+      {
+        fprintf(stderr, "invalid end_height\n");
+        return 1;
+      }
+    }
+  }
+
+  if (start_height == end_height)
+  {
+    uint64_t counter = 0;
+    while (1)
+    {
+      printf("\r%llu", (unsigned long long)counter);
+      fflush(stdout);
+      size_t offset = 0;
+      while (offset + 8 < sizeof(data))
+      {
+        memcpy(data + offset, &counter, sizeof(counter));
+        offset += 8;
+      }
+      if (test(data, sizeof(data), start_height))
+      {
+        fprintf(stderr, "\nFailure at height %llu, counter %llu\n", (unsigned long long)start_height, (unsigned long long)counter);
+        return 0;
+      }
+      ++counter;
+    }
+  }
+
+  memset(data, 0x42, sizeof(data));
+  for (uint64_t h = start_height; h < end_height; ++h)
+  {
+    printf("\r%llu/%llu", (unsigned long long)(h-start_height), (unsigned long long)(end_height-start_height));
+    fflush(stdout);
+    if (test(data, sizeof(data), h))
+    {
+      fprintf(stderr, "\nFailure at height %llu\n", (unsigned long long)h);
+      return 0;
+    }
+  }
+
+  printf("\r");
+
+  return 0;
+}