help MSVC optimize ROL/ROR functions (#1392)

jedisct1 · Aug 1, 2024 · e1861bb · e1861bb
1 parent 563ec3d
commit e1861bb
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/src/libsodium/include/sodium/private/common.h b/src/libsodium/include/sodium/private/common.h
@@ -32,6 +32,15 @@ typedef unsigned uint128_t __attribute__((mode(TI)));
 # endif
 #endif
 
+# if defined(_MSC_VER)
+
+#define ROTL32(X, B) _rotl((X), (B))
+#define ROTL64(X, B) _rotl64((X), (B))
+#define ROTR32(X, B) _rotr((X), (B))
+#define ROTR64(X, B) _rotr64((X), (B))
+
+#else
+
 #define ROTL32(X, B) rotl32((X), (B))
 static inline uint32_t
 rotl32(const uint32_t x, const int b)
@@ -60,6 +69,8 @@ rotr64(const uint64_t x, const int b)
     return (x >> b) | (x << (64 - b));
 }
 
+#endif
+
 #define LOAD64_LE(SRC) load64_le(SRC)
 static inline uint64_t
 load64_le(const uint8_t src[8])