snappy intrinsics

lnkuiper · Sep 13, 2024 · fc1cb80 · fc1cb80
1 parent 9af117f
commit fc1cb80
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -551,7 +551,7 @@ if(NOT MSVC)
   set(CMAKE_CXX_FLAGS_DEBUG
       "${CMAKE_CXX_FLAGS_DEBUG} -g -O0 -DDEBUG -Wall ${M32_FLAG} ${CXX_EXTRA}")
   set(CMAKE_CXX_FLAGS_RELEASE
-      "${CMAKE_CXX_FLAGS_RELEASE} -O3 -DNDEBUG ${M32_FLAG} ${CXX_EXTRA}")
+      "${CMAKE_CXX_FLAGS_RELEASE} -O3 -msse3 -DNDEBUG ${M32_FLAG} ${CXX_EXTRA}")
   if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND CMAKE_LTO)
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -flto=${CMAKE_LTO}")
   elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_LTO)

diff --git a/third_party/snappy/snappy-stubs-internal.h b/third_party/snappy/snappy-stubs-internal.h
@@ -54,6 +54,14 @@
 #define HAVE_BUILTIN_PREFETCH 1
 #endif
 
+#if defined(__aarch64__) || defined(__ARM_ARCH)
+#define SNAPPY_HAVE_NEON 1
+#define SNAPPY_HAVE_NEON_CRC32 1
+#else
+#define SNAPPY_HAVE_SSSE3 1
+#define SNAPPY_HAVE_X86_CRC32 1
+#define SNAPPY_HAVE_BMI2 1
+#endif
 
 #if HAVE_SYS_MMAN_H
 #include <sys/mman.h>